Add triage tests, prepare-export, and UI fixes for Levkin migration.

Cherry-pick heuristics, manifest merge, global file search, scrollbar styling, and pytest/Playwright coverage unblock review and filtered export for mmetl.

tests/README.md

@@ -0,0 +1,69 @@
+# Tests
+
+## Fixture (seeded from your export)
+
+`tests/fixtures/mini-export/` is a small slice of the real Levkin export:
+
+- `#medical`, `#zoey`, `#153niagara` (first 4 day-files each, ~54 messages)
+- Regenerate after export changes:
+
+```bash
+make fixture
+# or
+python3 scripts/build-test-fixture.py "/path/to/export"
+```
+
+## Python (unit + API)
+
+```bash
+make test-unit
+```
+
+Covers:
+
+- `slack_export.py` — parse, search, file types
+- `scripts/auto-cherry-pick.py` — drafts, data-only rules, return channels
+- `server.py` — HTTP API against mini-export
+
+Uses `.venv` automatically.
+
+## Playwright (UI)
+
+```bash
+make test-e2e
+```
+
+Covers:
+
+- Channel list, filters (**All** / **Has picks**)
+- Cherry-pick checkbox on/off
+- Detail panel **Skip**
+- **Only selected** filter
+- Global **Files** search
+
+Runs server on port **18765** with `tests/fixtures/test-manifest.json`.
+
+## All
+
+```bash
+make test
+```
+
+## Coverage
+
+```bash
+make test-unit   # includes --cov report
+```
+
+Current targets (~**98%** Python, **11** Playwright tests):
+
+| Module | Coverage | Notes |
+|--------|----------|-------|
+| `slack_export.py` | ~98% | canvases index, HTTP 401, search limits |
+| `server.py` | ~98% | logging when not quiet, empty DOCX body |
+| `scripts/auto-cherry-pick.py` | via `test_auto_cherry_pick_main.py` | full `main()` on fixture |
+| `static/app.js` | Playwright e2e | bulk select, text search, save |
+
+**100** pytest cases + **11** e2e. Manifest is copied per session and reset before each API test so POST cases do not leak state.
+
+Server runs **in-process** during pytest; Playwright uses port **18765**.

tests/conftest.py

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+"""Pytest fixtures — mini-export seeded from real Levkin Slack data."""
+
+from __future__ import annotations
+
+import importlib.util
+import json
+import shutil
+import socket
+import sys
+import time
+import urllib.error
+import urllib.request
+from pathlib import Path
+
+import pytest
+
+REPO_ROOT = Path(__file__).resolve().parents[1]
+FIXTURE_EXPORT = REPO_ROOT / "tests" / "fixtures" / "mini-export"
+TEST_MANIFEST = REPO_ROOT / "tests" / "fixtures" / "test-manifest.json"
+
+
+def _load_cherry_pick_module():
+    path = REPO_ROOT / "scripts" / "auto-cherry-pick.py"
+    spec = importlib.util.spec_from_file_location("auto_cherry_pick", path)
+    mod = importlib.util.module_from_spec(spec)
+    assert spec.loader
+    spec.loader.exec_module(mod)
+    return mod
+
+
+@pytest.fixture(scope="session")
+def cherry_pick():
+    return _load_cherry_pick_module()
+
+
+@pytest.fixture(scope="session")
+def fixture_export_path() -> Path:
+    assert FIXTURE_EXPORT.is_dir(), (
+        f"Run: python3 scripts/build-test-fixture.py ({FIXTURE_EXPORT})"
+    )
+    return FIXTURE_EXPORT
+
+
+@pytest.fixture
+def export(fixture_export_path):
+    sys.path.insert(0, str(REPO_ROOT))
+    from slack_export import SlackExport
+
+    return SlackExport(fixture_export_path)
+
+
+@pytest.fixture
+def empty_manifest(fixture_export_path, tmp_path):
+    data = {
+        "version": 1,
+        "export_path": str(fixture_export_path),
+        "updated_at": None,
+        "global_notes": "",
+        "channels": {},
+        "users": {},
+    }
+    path = tmp_path / "manifest.json"
+    path.write_text(json.dumps(data, indent=2) + "\n", encoding="utf-8")
+    return path, data
+
+
+def _free_port() -> int:
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        s.bind(("127.0.0.1", 0))
+        return s.getsockname()[1]
+
+
+def _wait_health(url: str, timeout: float = 8.0) -> None:
+    deadline = time.time() + timeout
+    while time.time() < deadline:
+        try:
+            with urllib.request.urlopen(url, timeout=1) as resp:
+                if resp.status == 200:
+                    return
+        except (urllib.error.URLError, TimeoutError):
+            time.sleep(0.15)
+    raise RuntimeError(f"Server did not start: {url}")
+
+
+@pytest.fixture(scope="session")
+def review_server(tmp_path_factory):
+    """Start review server in-process (for coverage) with isolated manifest copy."""
+    import os
+    import threading
+    from http.server import ThreadingHTTPServer
+
+    sys.path.insert(0, str(REPO_ROOT))
+    from server import ReviewHandler
+    from slack_export import SlackExport
+
+    port = _free_port()
+    manifest = tmp_path_factory.mktemp("manifest") / "manifest.json"
+    shutil.copy(TEST_MANIFEST, manifest)
+    export = SlackExport(FIXTURE_EXPORT)
+    handler_cls = type(
+        "BoundReviewHandler",
+        (ReviewHandler,),
+        {"export": export, "manifest_path": manifest},
+    )
+    os.environ["SLACK_IMPORT_QUIET"] = "1"
+    httpd = ThreadingHTTPServer(("127.0.0.1", port), handler_cls)
+    thread = threading.Thread(target=httpd.serve_forever, daemon=True)
+    thread.start()
+    base = f"http://127.0.0.1:{port}"
+    try:
+        _wait_health(f"{base}/api/health")
+        yield {"base": base, "port": port, "httpd": httpd, "manifest_path": manifest}
+    finally:
+        httpd.shutdown()
+
+
+@pytest.fixture
+def api(review_server):
+    # Reset manifest so POST tests cannot leak state across cases.
+    shutil.copy(TEST_MANIFEST, review_server["manifest_path"])
+    base = review_server["base"]
+
+    def get(path: str) -> dict:
+        with urllib.request.urlopen(f"{base}{path}", timeout=5) as resp:
+            return json.loads(resp.read().decode())
+
+    def post(path: str, body: dict) -> dict:
+        data = json.dumps(body).encode("utf-8")
+        req = urllib.request.Request(
+            f"{base}{path}",
+            data=data,
+            headers={"Content-Type": "application/json"},
+            method="POST",
+        )
+        with urllib.request.urlopen(req, timeout=5) as resp:
+            return json.loads(resp.read().decode())
+
+    return {"get": get, "post": post, "base": base}

tests/e2e/review-ui.spec.ts

@@ -0,0 +1,139 @@
+import { test, expect } from "@playwright/test";
+
+const BASE = process.env.SLACK_REVIEW_URL || "http://127.0.0.1:18765";
+
+async function waitForAppReady(page: import("@playwright/test").Page) {
+  await page.goto(BASE);
+  await expect(page.locator("#channel-title")).not.toHaveText("Select a channel", {
+    timeout: 15_000,
+  });
+}
+
+async function showAllChannels(page: import("@playwright/test").Page) {
+  await page.locator("#filter-status").selectOption("all");
+  await expect(page.locator("#sidebar-list .list-item").first()).toBeVisible();
+}
+
+async function openChannel(page: import("@playwright/test").Page, name: string) {
+  await showAllChannels(page);
+  const btn = page.locator("#sidebar-list button").filter({ hasText: name });
+  await btn.first().click();
+}
+
+test.describe("Review UI", () => {
+  test.beforeAll(async ({ request }) => {
+    const res = await request.get(`${BASE}/api/health`);
+    expect(res.ok()).toBeTruthy();
+  });
+
+  test("loads channel list and stats", async ({ page }) => {
+    await waitForAppReady(page);
+    await expect(page.locator("h1")).toHaveText("Slack import review");
+    await expect(page.locator("#stats")).not.toBeEmpty();
+    await expect(page.locator("#sidebar-list .list-item").first()).toBeVisible({
+      timeout: 10_000,
+    });
+  });
+
+  test("opens medical channel and shows messages", async ({ page }) => {
+    await waitForAppReady(page);
+    await openChannel(page, "medical");
+    await expect(page.locator("#channel-title")).toHaveText("#medical");
+    await expect(page.locator(".message").first()).toBeVisible({ timeout: 10_000 });
+  });
+
+  test("cherry-pick checkbox toggles on and off", async ({ page }) => {
+    await waitForAppReady(page);
+    await openChannel(page, "medical");
+    await page.waitForSelector(".message", { timeout: 10_000 });
+
+    const row = page.locator(".message").first();
+    const checkbox = row.locator("input[data-msg-check]");
+    await checkbox.check();
+    await expect(row).toHaveClass(/sel-import/);
+
+    await checkbox.uncheck();
+    await expect(row).not.toHaveClass(/sel-import/);
+  });
+
+  test("detail panel skip clears selection", async ({ page }) => {
+    await waitForAppReady(page);
+    await openChannel(page, "medical");
+    await page.waitForSelector(".message", { timeout: 10_000 });
+
+    const row = page.locator(".message").first();
+    await row.click();
+    await expect(page.locator("#message-detail")).toBeVisible();
+    await page.locator("#msg-action").selectOption("import");
+    await expect(row).toHaveClass(/sel-import/);
+
+    await page.locator("#msg-action").selectOption("skip");
+    await expect(row).not.toHaveClass(/sel-import/);
+  });
+
+  test("filter only selected hides unchecked", async ({ page }) => {
+    await waitForAppReady(page);
+    await openChannel(page, "zoey");
+    await page.waitForSelector(".message", { timeout: 10_000 });
+
+    const before = await page.locator(".message").count();
+    const checkbox = page.locator(".message").first().locator("input[data-msg-check]");
+    await checkbox.check();
+    await page.locator("#filter-only-selected").check();
+    const after = await page.locator(".message").count();
+    expect(after).toBeLessThanOrEqual(before);
+    expect(after).toBeGreaterThanOrEqual(1);
+  });
+
+  test("global file search mode returns hits", async ({ page }) => {
+    await waitForAppReady(page);
+    await page.locator("#global-search-mode").selectOption("files");
+    await page.locator("#global-file-type").selectOption("image");
+    await page.waitForTimeout(400);
+    const results = page.locator("#global-search-results .search-hit");
+    const count = await results.count();
+    expect(count).toBeGreaterThanOrEqual(0);
+  });
+
+  test("sidebar Has picks filter", async ({ page }) => {
+    await waitForAppReady(page);
+    await page.locator("#filter-status").selectOption("partial");
+    const items = page.locator("#sidebar-list .list-item");
+    await expect(items.first()).toBeVisible();
+    const count = await items.count();
+    expect(count).toBeGreaterThanOrEqual(1);
+  });
+
+  test("import mode pick checkbox enables cherry-pick", async ({ page }) => {
+    await waitForAppReady(page);
+    await openChannel(page, "medical");
+    await page.locator("#import-mode-pick").check();
+    await expect(page.locator("#import-mode-pick")).toBeChecked();
+  });
+
+  test("save button shows confirmation", async ({ page }) => {
+    await waitForAppReady(page);
+    await page.locator("#btn-save").click();
+    await expect(page.locator("#save-status")).toContainText("Saved", { timeout: 3000 });
+  });
+
+  test("global text search finds channel", async ({ page }) => {
+    await waitForAppReady(page);
+    await page.locator("#global-search-mode").selectOption("text");
+    await page.locator("#global-search").fill("niagara");
+    await page.waitForTimeout(400);
+    await expect(page.locator("#global-search-results .search-hit").first()).toBeVisible();
+  });
+
+  test("select files in view toggles", async ({ page }) => {
+    await waitForAppReady(page);
+    await openChannel(page, "153niagara");
+    await page.waitForSelector(".message", { timeout: 10_000 });
+    await page.locator("#filter-attachment-type").selectOption("any");
+    const btn = page.locator("#btn-select-files");
+    await btn.click();
+    await expect(btn).toContainText("Clear", { timeout: 3000 });
+    await btn.click();
+    await expect(btn).toContainText("Select", { timeout: 3000 });
+  });
+});

tests/fixtures/mini-export/153niagara/2016-10-05.json

@@ -0,0 +1,17 @@
+[
+    {
+        "subtype": "channel_join",
+        "user": "U2HHNN1HQ",
+        "text": "<@U2HHNN1HQ> has joined the channel",
+        "type": "message",
+        "ts": "1475689651.000002"
+    },
+    {
+        "subtype": "channel_join",
+        "user": "U2J30FCLW",
+        "text": "<@U2J30FCLW> has joined the channel",
+        "inviter": "U2HHNN1HQ",
+        "type": "message",
+        "ts": "1475689652.000003"
+    }
+]

tests/fixtures/mini-export/153niagara/2016-10-11.json

@@ -0,0 +1,198 @@
+[
+    {
+        "text": "<@U2HHNN1HQ|jedi_jew> shared a file: <https:\/\/levkine.slack.com\/files\/jedi_jew\/F2N37HDQA\/Proof_read|Proof read>",
+        "files": [
+            {
+                "id": "F049MQBLJBF",
+                "created": 1476210524,
+                "timestamp": 1476210524,
+                "mimetype": "application\/vnd.slack-docs",
+                "filetype": "quip",
+                "pretty_type": "Canvas",
+                "user": "U2HHNN1HQ",
+                "user_team": "T2HHNN1FU",
+                "editable": true,
+                "size": 1039,
+                "mode": "quip",
+                "is_external": false,
+                "external_type": "",
+                "is_public": true,
+                "public_url_shared": false,
+                "display_as_bot": false,
+                "username": "",
+                "name": "Proof_read",
+                "title": "Proof read",
+                "is_modified_by_ai": false,
+                "url_private": "https:\/\/files.slack.com\/files-pri\/T2HHNN1FU-F049MQBLJBF\/canvas?token=xoxe-85600749538-11214969224067-11215699816469-13b604e355c6cb0f8b9d8a5c2dd39dd1",
+                "url_private_download": "https:\/\/files.slack.com\/files-pri\/T2HHNN1FU-F049MQBLJBF\/download\/canvas?token=xoxe-85600749538-11214969224067-11215699816469-13b604e355c6cb0f8b9d8a5c2dd39dd1",
+                "permalink": "https:\/\/levkine.slack.com\/docs\/T2HHNN1FU\/F049MQBLJBF",
+                "permalink_public": "https:\/\/slack-files.com\/T2HHNN1FU-F049MQBLJBF-8ae09c2c9a",
+                "url_static_preview": "https:\/\/levkine.slack.com\/docs\/T2HHNN1FU\/F049MQBLJBF\/mobile",
+                "quip_thread_id": "EYc9AAYAZZK",
+                "updated": 1476210573,
+                "update_notification": null,
+                "canvas_readtime": 0.84945804897631,
+                "is_starred": false,
+                "skipped_shares": true,
+                "is_restricted_sharing_enabled": false,
+                "has_rich_preview": false,
+                "file_access": "visible",
+                "access": "owner",
+                "org_or_workspace_access": "read",
+                "canvas_creator_id": "U2HHNN1HQ",
+                "team_pref_version_history_enabled": true,
+                "canvas_printing_enabled": true,
+                "is_ai_suggested": false
+            }
+        ],
+        "upload": false,
+        "user": "U2HHNN1HQ",
+        "display_as_bot": false,
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "2ktK",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "user",
+                                "user_id": "U2HHNN1HQ"
+                            },
+                            {
+                                "type": "text",
+                                "text": " shared a file: "
+                            },
+                            {
+                                "type": "link",
+                                "url": "https:\/\/levkine.slack.com\/files\/jedi_jew\/F2N37HDQA\/Proof_read",
+                                "text": "Proof read"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ],
+        "type": "message",
+        "ts": "1476210563.000002"
+    },
+    {
+        "subtype": "file_comment",
+        "text": "<@U2HHNN1HQ> commented on <@U2HHNN1HQ>’s file <https:\/\/levkine.slack.com\/docs\/T2HHNN1FU\/F049MQBLJBF|https:\/\/levkine.slack.com\/docs\/T2HHNN1FU\/F049MQBLJBF>: You can proof read in the post",
+        "comment": {
+            "id": "Fc2N2M6J5A",
+            "created": 1476210563,
+            "timestamp": 1476210563,
+            "user": "U2HHNN1HQ",
+            "is_intro": false,
+            "comment": "You can proof read in the post"
+        },
+        "is_intro": false,
+        "file": {
+            "id": "F049MQBLJBF",
+            "created": 1476210524,
+            "timestamp": 1476210524,
+            "mimetype": "application\/vnd.slack-docs",
+            "filetype": "quip",
+            "pretty_type": "Canvas",
+            "user": "U2HHNN1HQ",
+            "user_team": "T2HHNN1FU",
+            "editable": true,
+            "size": 1039,
+            "mode": "quip",
+            "is_external": false,
+            "external_type": "",
+            "is_public": true,
+            "public_url_shared": false,
+            "display_as_bot": false,
+            "username": "",
+            "name": "Proof_read",
+            "title": "Proof read",
+            "is_modified_by_ai": false,
+            "url_private": "https:\/\/files.slack.com\/files-pri\/T2HHNN1FU-F049MQBLJBF\/canvas?token=xoxe-85600749538-11214969224067-11215699816469-13b604e355c6cb0f8b9d8a5c2dd39dd1",
+            "url_private_download": "https:\/\/files.slack.com\/files-pri\/T2HHNN1FU-F049MQBLJBF\/download\/canvas?token=xoxe-85600749538-11214969224067-11215699816469-13b604e355c6cb0f8b9d8a5c2dd39dd1",
+            "permalink": "https:\/\/levkine.slack.com\/docs\/T2HHNN1FU\/F049MQBLJBF",
+            "permalink_public": "https:\/\/slack-files.com\/T2HHNN1FU-F049MQBLJBF-8ae09c2c9a",
+            "url_static_preview": "https:\/\/levkine.slack.com\/docs\/T2HHNN1FU\/F049MQBLJBF\/mobile",
+            "quip_thread_id": "EYc9AAYAZZK",
+            "updated": 1476210573,
+            "update_notification": null,
+            "canvas_readtime": 0.84945804897631,
+            "is_starred": false,
+            "skipped_shares": true,
+            "is_restricted_sharing_enabled": false,
+            "has_rich_preview": false,
+            "file_access": "visible",
+            "access": "owner",
+            "org_or_workspace_access": "read",
+            "canvas_creator_id": "U2HHNN1HQ",
+            "team_pref_version_history_enabled": true,
+            "canvas_printing_enabled": true,
+            "is_ai_suggested": false
+        },
+        "files": [
+            {
+                "id": "F049MQBLJBF",
+                "created": 1476210524,
+                "timestamp": 1476210524,
+                "mimetype": "application\/vnd.slack-docs",
+                "filetype": "quip",
+                "pretty_type": "Canvas",
+                "user": "U2HHNN1HQ",
+                "user_team": "T2HHNN1FU",
+                "editable": true,
+                "size": 1039,
+                "mode": "quip",
+                "is_external": false,
+                "external_type": "",
+                "is_public": true,
+                "public_url_shared": false,
+                "display_as_bot": false,
+                "username": "",
+                "name": "Proof_read",
+                "title": "Proof read",
+                "is_modified_by_ai": false,
+                "url_private": "https:\/\/files.slack.com\/files-pri\/T2HHNN1FU-F049MQBLJBF\/canvas?token=xoxe-85600749538-11214969224067-11215699816469-13b604e355c6cb0f8b9d8a5c2dd39dd1",
+                "url_private_download": "https:\/\/files.slack.com\/files-pri\/T2HHNN1FU-F049MQBLJBF\/download\/canvas?token=xoxe-85600749538-11214969224067-11215699816469-13b604e355c6cb0f8b9d8a5c2dd39dd1",
+                "permalink": "https:\/\/levkine.slack.com\/docs\/T2HHNN1FU\/F049MQBLJBF",
+                "permalink_public": "https:\/\/slack-files.com\/T2HHNN1FU-F049MQBLJBF-8ae09c2c9a",
+                "url_static_preview": "https:\/\/levkine.slack.com\/docs\/T2HHNN1FU\/F049MQBLJBF\/mobile",
+                "quip_thread_id": "EYc9AAYAZZK",
+                "updated": 1476210573,
+                "update_notification": null,
+                "canvas_readtime": 0.84945804897631,
+                "is_starred": false,
+                "skipped_shares": true,
+                "is_restricted_sharing_enabled": false,
+                "has_rich_preview": false,
+                "file_access": "visible",
+                "access": "owner",
+                "org_or_workspace_access": "read",
+                "canvas_creator_id": "U2HHNN1HQ",
+                "team_pref_version_history_enabled": true,
+                "canvas_printing_enabled": true,
+                "is_ai_suggested": false
+            }
+        ],
+        "team": "T00",
+        "blocks": [
+            {
+                "type": "rich_text",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "<@U2HHNN1HQ> commented on <@U2HHNN1HQ>’s file <https:\/\/levkine.slack.com\/docs\/T2HHNN1FU\/F049MQBLJBF|https:\/\/levkine.slack.com\/docs\/T2HHNN1FU\/F049MQBLJBF>: You can proof read in the post"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ],
+        "type": "message",
+        "ts": "1476210563.000003"
+    }
+]

tests/fixtures/mini-export/153niagara/2016-10-18.json

@@ -0,0 +1,309 @@
+[
+    {
+        "text": "<@U2J30FCLW|ira_feeds> shared a file: <https:\/\/levkine.slack.com\/files\/ira_feeds\/F2R3Y6L9L\/draft_-_hot_plate|draft - hot plate>",
+        "files": [
+            {
+                "id": "F049QLYJZSN",
+                "created": 1476833849,
+                "timestamp": 1476833849,
+                "mimetype": "application\/vnd.slack-docs",
+                "filetype": "quip",
+                "pretty_type": "Canvas",
+                "user": "U2J30FCLW",
+                "user_team": "T2HHNN1FU",
+                "editable": true,
+                "size": 483,
+                "mode": "quip",
+                "is_external": false,
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+                                "type": "user",
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+                                "type": "text",
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tests/fixtures/mini-export/153niagara/2016-10-24.json

@@ -0,0 +1,298 @@
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+        "user_team": "T2HHNN1FU",
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+            "real_name": "Ilia Dobkin",
+            "display_name": "Ilia",
+            "team": "T2HHNN1FU",
+            "name": "jedi_jew",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "F2F9",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "i really want to keep it"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    }
+]

tests/fixtures/mini-export/__uploads/T1/note.txt

@@ -0,0 +1 @@
+fixture preview text

tests/fixtures/mini-export/channels.json

@@ -0,0 +1,68 @@
+[
+  {
+    "id": "C0121TJUSUD",
+    "name": "zoey",
+    "created": 1587214815,
+    "creator": "U2HHNN1HQ",
+    "is_archived": false,
+    "is_general": false,
+    "members": [
+      "U2HHNN1HQ",
+      "U2J30FCLW"
+    ],
+    "topic": {
+      "value": "",
+      "creator": "",
+      "last_set": 0
+    },
+    "purpose": {
+      "value": "",
+      "creator": "",
+      "last_set": 0
+    }
+  },
+  {
+    "id": "C2KPK5G8N",
+    "name": "153niagara",
+    "created": 1475689652,
+    "creator": "U2HHNN1HQ",
+    "is_archived": false,
+    "is_general": false,
+    "members": [
+      "U2HHNN1HQ",
+      "U2J30FCLW"
+    ],
+    "topic": {
+      "value": "",
+      "creator": "",
+      "last_set": 0
+    },
+    "purpose": {
+      "value": "",
+      "creator": "",
+      "last_set": 0
+    }
+  },
+  {
+    "id": "C2KQHKAV8",
+    "name": "medical",
+    "created": 1475691337,
+    "creator": "U2HHNN1HQ",
+    "is_archived": false,
+    "is_general": false,
+    "members": [
+      "U2HHNN1HQ",
+      "U2J30FCLW"
+    ],
+    "topic": {
+      "value": "",
+      "creator": "",
+      "last_set": 0
+    },
+    "purpose": {
+      "value": "",
+      "creator": "",
+      "last_set": 0
+    }
+  }
+]

tests/fixtures/mini-export/medical/2016-10-05.json

@@ -0,0 +1,17 @@
+[
+    {
+        "subtype": "channel_join",
+        "user": "U2HHNN1HQ",
+        "text": "<@U2HHNN1HQ> has joined the channel",
+        "type": "message",
+        "ts": "1475691337.000002"
+    },
+    {
+        "subtype": "channel_join",
+        "user": "U2J30FCLW",
+        "text": "<@U2J30FCLW> has joined the channel",
+        "inviter": "U2HHNN1HQ",
+        "type": "message",
+        "ts": "1475691337.000003"
+    }
+]

tests/fixtures/mini-export/medical/2016-10-10.json

@@ -0,0 +1,261 @@
+[
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1476122672.000002",
+        "text": "subclinical hypothyroidism d\/t autoimmunity = hashimoto's thyroiditis.",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "xcov",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "subclinical hypothyroidism d\/t autoimmunity = hashimoto's thyroiditis."
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1476122755.000003",
+        "text": "alterations in thyroid functioning, in this case hypothyroidism manifest as reduced appetite, low energy, chronic infections (hello - persistent GI infections), weight loss, skin issues, CONSTIPATION, and literally all of my other symptoms",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "ME3ih",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "alterations in thyroid functioning, in this case hypothyroidism manifest as reduced appetite, low energy, chronic infections (hello - persistent GI infections), weight loss, skin issues, CONSTIPATION, and literally all of my other symptoms"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2HHNN1HQ",
+        "type": "message",
+        "ts": "1476122785.000004",
+        "text": "So how do we fix it?",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gde41167d309",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/ede41167d309b977e5c67645d9a1a699.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0001-72.png",
+            "first_name": "Ilia",
+            "real_name": "Ilia Dobkin",
+            "display_name": "Ilia",
+            "team": "T2HHNN1FU",
+            "name": "jedi_jew",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "Ojdhx",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "So how do we fix it?"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1476122816.000005",
+        "text": "its a chicken and egg thing - dont know if the hashimoto's or the GI issues came first so need to fix both at same time",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "9+Oie",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "its a chicken and egg thing - dont know if the hashimoto's or the GI issues came first so need to fix both at same time"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1476122850.000006",
+        "text": "synthetic thyroid (already on it) and fixing leaky gut (may need to do new food sensitivity testing)",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "OlG",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "synthetic thyroid (already on it) and fixing leaky gut (may need to do new food sensitivity testing)"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1476122864.000007",
+        "text": "the synthroid may be too low a dose",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "+6S",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "the synthroid may be too low a dose"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1476122903.000008",
+        "text": "but we'll see",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "oZKHf",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "but we'll see"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    }
+]

tests/fixtures/mini-export/medical/2016-10-27.json

@@ -0,0 +1,241 @@
+[
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1477621049.000002",
+        "text": "<https:\/\/www.tweed.com\/collections\/available\/products\/ocean-view-leafs-by-snoop>",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "attachments": [
+            {
+                "service_name": "Tweed",
+                "title": "OCEAN VIEW (Leafs by Snoop)",
+                "title_link": "https:\/\/www.tweed.com\/collections\/available\/products\/ocean-view-leafs-by-snoop",
+                "text": "THC: 15.7\/ CBD: &lt;0.05 ↓Also of Note THC and CBD amounts listed for this strain have been tested by Tweed. This product has not been cold-pasteurized. To lear",
+                "fallback": "Tweed: OCEAN VIEW (Leafs by Snoop)",
+                "thumb_url": "http:\/\/cdn.shopify.com\/s\/files\/1\/0266\/0901\/products\/Untitled-4_grande.png?v=1477513626",
+                "thumb_width": 41,
+                "thumb_height": 40,
+                "fields": [
+                    {
+                        "title": "Price",
+                        "value": "From $9.60 CAD",
+                        "short": true
+                    },
+                    {
+                        "title": "Brand",
+                        "value": "Leafs by Snoop",
+                        "short": true
+                    }
+                ],
+                "from_url": "https:\/\/www.tweed.com\/collections\/available\/products\/ocean-view-leafs-by-snoop",
+                "service_icon": "http:\/\/cdn.shopify.com\/s\/files\/1\/0266\/0901\/t\/16\/assets\/favicon.png?17894041713191168692",
+                "id": 1
+            }
+        ],
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "KpkG",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "link",
+                                "url": "https:\/\/www.tweed.com\/collections\/available\/products\/ocean-view-leafs-by-snoop"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2HHNN1HQ",
+        "type": "message",
+        "ts": "1477621066.000004",
+        "text": "nice",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gde41167d309",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/ede41167d309b977e5c67645d9a1a699.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0001-72.png",
+            "first_name": "Ilia",
+            "real_name": "Ilia Dobkin",
+            "display_name": "Ilia",
+            "team": "T2HHNN1FU",
+            "name": "jedi_jew",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "Il6oK",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "nice"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1477621108.000005",
+        "text": "<https:\/\/www.tweed.com\/collections\/available\/products\/palm-tree-cbd-leafs-by-snoop>",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "attachments": [
+            {
+                "service_name": "Tweed",
+                "title": "PALM TREE CBD (Leafs By Snoop)",
+                "title_link": "https:\/\/www.tweed.com\/collections\/available\/products\/palm-tree-cbd-leafs-by-snoop",
+                "text": "THC: 8.71\/ CBD: 9.76 ↓Also of Note THC and CBD amounts listed for this strain have been tested by Tweed. This product has not been cold-pasteurized. To learn mo",
+                "fallback": "Tweed: PALM TREE CBD (Leafs By Snoop)",
+                "thumb_url": "http:\/\/cdn.shopify.com\/s\/files\/1\/0266\/0901\/products\/Untitled-44_grande.png?v=1477513710",
+                "thumb_width": 41,
+                "thumb_height": 40,
+                "fields": [
+                    {
+                        "title": "Price",
+                        "value": "From $7.20 CAD",
+                        "short": true
+                    },
+                    {
+                        "title": "Brand",
+                        "value": "Leafs by Snoop",
+                        "short": true
+                    }
+                ],
+                "from_url": "https:\/\/www.tweed.com\/collections\/available\/products\/palm-tree-cbd-leafs-by-snoop",
+                "service_icon": "http:\/\/cdn.shopify.com\/s\/files\/1\/0266\/0901\/t\/16\/assets\/favicon.png?17894041713191168692",
+                "id": 1
+            }
+        ],
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "ueWRO",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "link",
+                                "url": "https:\/\/www.tweed.com\/collections\/available\/products\/palm-tree-cbd-leafs-by-snoop"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1477621115.000007",
+        "text": "that one is similar to Devon",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "FwcA",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "that one is similar to Devon"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1477621164.000008",
+        "text": "the breakdown is a bit strange though - its supposedly focusing and sleepy at the same time",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "thl",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "the breakdown is a bit strange though - its supposedly focusing and sleepy at the same time"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    }
+]

tests/fixtures/mini-export/medical/2018-09-13.json

@@ -0,0 +1,84 @@
+[
+    {
+        "text": "",
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+                "mode": "hosted",
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+                "external_type": "",
+                "is_public": true,
+                "public_url_shared": false,
+                "display_as_bot": false,
+                "username": "",
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+                "permalink_public": "https:\/\/slack-files.com\/T2HHNN1FU-FCT24D5B7-e76617f641",
+                "is_starred": false,
+                "skipped_shares": true,
+                "has_rich_preview": false,
+                "file_access": "visible"
+            }
+        ],
+        "upload": true,
+        "user": "U2HHNN1HQ",
+        "display_as_bot": false,
+        "type": "message",
+        "ts": "1536844412.000100"
+    },
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1536844629.000100",
+        "client_msg_id": "a0e588b0-0bf3-442a-bf02-edfbea2bec31",
+        "text": "Can you email so I can forward? ",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
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+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "Bv=9",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "Can you email so I can forward?"
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+                        ]
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+                ]
+            }
+        ]
+    }
+]

tests/fixtures/mini-export/users.json

@@ -0,0 +1,933 @@
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+    "tz": "America/Los_Angeles",
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+      "real_name_normalized": "Item status notification",
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+    "tz_offset": -25200,
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+      "real_name": "Welcome message",
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+      "display_name": "",
+      "display_name_normalized": "",
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+      "status_text": "",
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tests/fixtures/mini-export/zoey/2020-04-18.json

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+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
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+            "real_name": "Irina",
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+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
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+]

tests/fixtures/mini-export/zoey/2020-04-23.json

@@ -0,0 +1,277 @@
+[
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+        "ts": "1587651542.000200",
+        "client_msg_id": "5e8e082d-4605-4875-a2d6-86607e98e112",
+        "text": "Baby girl names",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
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+                "elements": [
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+                        "elements": [
+                            {
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+                                "text": "Baby girl names"
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+                        ]
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+            }
+        ]
+    },
+    {
+        "user": "U2HHNN1HQ",
+        "type": "message",
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+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    }
+]

tests/fixtures/mini-export/zoey/2020-04-25.json

@@ -0,0 +1,665 @@
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+            "first_name": "Ilia",
+            "real_name": "Ilia Dobkin",
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+                            }
+                        ]
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+                ]
+            }
+        ]
+    },
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+            "real_name": "Ilia Dobkin",
+            "display_name": "Ilia",
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+            "name": "jedi_jew",
+            "is_restricted": false,
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+                        ]
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+            }
+        ]
+    },
+    {
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+        "type": "message",
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+        "client_msg_id": "c10be03a-516a-4d31-9820-1263811fdfaf",
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+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
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+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
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+        "type": "message",
+        "ts": "1587847806.004200",
+        "client_msg_id": "886ee1b0-2ae7-4e3b-b59c-d155dc54808e",
+        "text": "Zain",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gde41167d309",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/ede41167d309b977e5c67645d9a1a699.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0001-72.png",
+            "first_name": "Ilia",
+            "real_name": "Ilia Dobkin",
+            "display_name": "Ilia",
+            "team": "T2HHNN1FU",
+            "name": "jedi_jew",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "thread_ts": "1587842804.001100",
+        "parent_user_id": "U2HHNN1HQ",
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "dgP",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "Zain"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2HHNN1HQ",
+        "type": "message",
+        "ts": "1587847856.004400",
+        "edited": {
+            "user": "U2HHNN1HQ",
+            "ts": "1669817790.000000"
+        },
+        "client_msg_id": "b6c4a1b6-2a19-4b65-be54-0eff9061b8c1",
+        "text": "Enoch (Nucky)\nEnok",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gde41167d309",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/ede41167d309b977e5c67645d9a1a699.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0001-72.png",
+            "first_name": "Ilia",
+            "real_name": "Ilia Dobkin",
+            "display_name": "Ilia",
+            "team": "T2HHNN1FU",
+            "name": "jedi_jew",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "thread_ts": "1587842804.001100",
+        "parent_user_id": "U2HHNN1HQ",
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "9uj3M",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "Enoch (Nucky)\nEnok"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2HHNN1HQ",
+        "type": "message",
+        "ts": "1587848964.004600",
+        "client_msg_id": "7cf7fc44-924f-4dad-ac6a-3e909d26b94c",
+        "text": "Noel",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gde41167d309",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/ede41167d309b977e5c67645d9a1a699.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0001-72.png",
+            "first_name": "Ilia",
+            "real_name": "Ilia Dobkin",
+            "display_name": "Ilia",
+            "team": "T2HHNN1FU",
+            "name": "jedi_jew",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "thread_ts": "1587842804.001100",
+        "parent_user_id": "U2HHNN1HQ",
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "dpq",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "Noel"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2HHNN1HQ",
+        "type": "message",
+        "ts": "1587849379.004800",
+        "client_msg_id": "3581817c-3d7a-4708-bc2e-0ece2f173539",
+        "text": "Lucy\nSadie\nNoa",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gde41167d309",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/ede41167d309b977e5c67645d9a1a699.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0001-72.png",
+            "first_name": "Ilia",
+            "real_name": "Ilia Dobkin",
+            "display_name": "Ilia",
+            "team": "T2HHNN1FU",
+            "name": "jedi_jew",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "thread_ts": "1587651542.000200",
+        "parent_user_id": "U2HHNN1HQ",
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "qD4V",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "Lucy\nSadie\nNoa"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1587849408.005000",
+        "client_msg_id": "44d5139e-033f-4a83-bc6b-ffc5bde8edae",
+        "text": "Not a fan of noa. But I do like Lucy and Sadie",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "thread_ts": "1587651542.000200",
+        "parent_user_id": "U2HHNN1HQ",
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "EAVP",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "Not a fan of noa. But I do like Lucy and Sadie"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2HHNN1HQ",
+        "type": "message",
+        "ts": "1587849458.005200",
+        "client_msg_id": "2a778fe4-88aa-4b81-a3e6-9515ada836ce",
+        "text": "Alvi?",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gde41167d309",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/ede41167d309b977e5c67645d9a1a699.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0001-72.png",
+            "first_name": "Ilia",
+            "real_name": "Ilia Dobkin",
+            "display_name": "Ilia",
+            "team": "T2HHNN1FU",
+            "name": "jedi_jew",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "thread_ts": "1587651542.000200",
+        "parent_user_id": "U2HHNN1HQ",
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "PdB",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "Alvi?"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    },
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1587851865.005400",
+        "client_msg_id": "9a9a0cf0-962f-443d-9458-4af3c299575e",
+        "text": "Not a fan",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "thread_ts": "1587651542.000200",
+        "parent_user_id": "U2HHNN1HQ",
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "dpYcf",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "Not a fan"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    }
+]

tests/fixtures/mini-export/zoey/2020-05-29.json

@@ -0,0 +1,42 @@
+[
+    {
+        "user": "U2J30FCLW",
+        "type": "message",
+        "ts": "1590795033.000100",
+        "client_msg_id": "c1405527-49a1-49f6-9a14-5e7797adee00",
+        "text": "Ellie\nErin\nEsther\nMara\nShai\nSara\nZoey\nLuct\nSadie",
+        "team": "T2HHNN1FU",
+        "user_team": "T2HHNN1FU",
+        "source_team": "T2HHNN1FU",
+        "user_profile": {
+            "avatar_hash": "gc49a37283df",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/bc49a37283dfa139af6916bb32030146.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2Fdf10d%2Fimg%2Favatars%2Fava_0017-72.png",
+            "first_name": "Irina",
+            "real_name": "Irina",
+            "display_name": "ira_feeds",
+            "team": "T2HHNN1FU",
+            "name": "ira_feeds",
+            "is_restricted": false,
+            "is_ultra_restricted": false
+        },
+        "thread_ts": "1587651542.000200",
+        "parent_user_id": "U2HHNN1HQ",
+        "blocks": [
+            {
+                "type": "rich_text",
+                "block_id": "dYo",
+                "elements": [
+                    {
+                        "type": "rich_text_section",
+                        "elements": [
+                            {
+                                "type": "text",
+                                "text": "Ellie\nErin\nEsther\nMara\nShai\nSara\nZoey\nLuct\nSadie"
+                            }
+                        ]
+                    }
+                ]
+            }
+        ]
+    }
+]

tests/fixtures/test-manifest.json

@@ -0,0 +1,167 @@
+{
+  "version": 1,
+  "export_path": "/Users/macilia/Documents/code/slack-sieve/tests/fixtures/mini-export",
+  "updated_at": "2026-06-03T16:36:33.190656+00:00",
+  "global_notes": "pytest was here",
+  "channels": {
+    "medical": {
+      "import": true,
+      "status": "partial",
+      "reviewed": true,
+      "import_mode": "pick",
+      "notes": "",
+      "mattermost_channel": "",
+      "mattermost_team": "",
+      "messages": {
+        "medical:test:1": {
+          "action": "import",
+          "checked": true,
+          "files": {},
+          "notes": "",
+          "merge_target": ""
+        }
+      }
+    },
+    "29wilson": {
+      "import": false,
+      "status": "skip",
+      "reviewed": true,
+      "import_mode": "all",
+      "notes": "Returned — not importing",
+      "mattermost_channel": "",
+      "mattermost_team": "",
+      "messages": {}
+    },
+    "zoey": {
+      "import": true,
+      "status": "partial",
+      "reviewed": true,
+      "import_mode": "pick",
+      "notes": "",
+      "mattermost_channel": "",
+      "mattermost_team": "",
+      "messages": {
+        "zoey:test:2": {
+          "action": "import",
+          "checked": true,
+          "files": {},
+          "notes": "",
+          "merge_target": ""
+        }
+      }
+    },
+    "153niagara": {
+      "import": false,
+      "status": "undecided",
+      "reviewed": false,
+      "import_mode": "all",
+      "notes": "",
+      "mattermost_channel": "",
+      "mattermost_team": "",
+      "messages": {
+        "153niagara:1476210563.000002": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1476210563.000003": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1476833882.000005": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1476833895.000006": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1476833908.000007": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1476834078.000008": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1476834088.000009": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1477341477.000002": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1477341924.000003": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1477342010.000004": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1477342047.000005": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1477342051.000006": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1477342059.000007": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1477342065.000008": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        },
+        "153niagara:1477342068.000009": {
+          "action": "inherit",
+          "merge_target": "",
+          "notes": "",
+          "files": {}
+        }
+      }
+    }
+  },
+  "users": {
+    "UTEST": {
+      "import": true,
+      "notes": "mapped",
+      "mattermost_username": "ilia"
+    },
+    "U2HHNN1HQ": {
+      "import": true,
+      "notes": "mapped",
+      "mattermost_username": "testuser"
+    }
+  }
+}

tests/test_auto_cherry_pick_main.py

@@ -0,0 +1,49 @@
+"""Integration test for auto-cherry-pick main() on mini-export."""
+
+from __future__ import annotations
+
+import json
+import sys
+from pathlib import Path
+
+import pytest
+
+REPO = Path(__file__).resolve().parents[1]
+
+
+@pytest.fixture
+def cherry_pick_module():
+    import importlib.util
+
+    path = REPO / "scripts" / "auto-cherry-pick.py"
+    spec = importlib.util.spec_from_file_location("auto_cherry_pick_main", path)
+    mod = importlib.util.module_from_spec(spec)
+    assert spec.loader
+    spec.loader.exec_module(mod)
+    return mod
+
+
+def test_main_dry_run_on_fixture(cherry_pick_module, fixture_export_path, tmp_path, monkeypatch):
+    manifest = tmp_path / "manifest.json"
+    monkeypatch.setattr(cherry_pick_module, "MANIFEST_PATH", manifest)
+    monkeypatch.setattr(cherry_pick_module, "DEFAULT_EXPORT", fixture_export_path)
+    monkeypatch.setattr(sys, "argv", ["auto-cherry-pick.py", "--dry-run"])
+    assert cherry_pick_module.main() == 0
+
+
+def test_main_writes_pick_manifest(cherry_pick_module, fixture_export_path, tmp_path, monkeypatch):
+    manifest = tmp_path / "manifest.json"
+    monkeypatch.setattr(cherry_pick_module, "MANIFEST_PATH", manifest)
+    monkeypatch.setattr(cherry_pick_module, "DEFAULT_EXPORT", fixture_export_path)
+    monkeypatch.setattr(sys, "argv", ["auto-cherry-pick.py"])
+    assert cherry_pick_module.main() == 0
+    data = json.loads(manifest.read_text())
+    picks = sum(
+        1
+        for ch in data["channels"].values()
+        for m in ch.get("messages", {}).values()
+        if m.get("action") == "import"
+    )
+    assert picks > 0
+    assert "medical" in data["channels"]
+    assert data["channels"]["medical"]["import_mode"] == "pick"

tests/test_cherry_pick.py

@@ -0,0 +1,82 @@
+"""Unit tests for scripts/auto-cherry-pick.py heuristics."""
+
+from __future__ import annotations
+
+
+def test_return_channels_skipped(cherry_pick, empty_manifest):
+    _, manifest = empty_manifest
+    manifest["channels"]["29wilson"] = {
+        "status": "partial",
+        "messages": {"x": {"action": "import"}},
+    }
+    cherry_pick.reset_all_picks(manifest)
+    entry = manifest["channels"]["29wilson"]
+    assert entry["status"] == "skip"
+    assert entry["messages"] == {}
+
+
+def test_conversation_not_imported(cherry_pick):
+    assert cherry_pick.looks_conversational("should we go with option A?")
+    assert cherry_pick.looks_conversational("sounds good!")
+    assert not cherry_pick.text_is_factual("should we book for Tuesday?")
+    assert cherry_pick.text_is_factual("Call Dr. Smith at 416-555-1234")
+
+
+def test_name_list_detected(cherry_pick):
+    text = "Baby girl names\n• Maya\n• Sarah\n• Leah\n• Naomi"
+    assert cherry_pick.is_name_list_message(text)
+    assert not cherry_pick.is_name_list_message("Zoey had fun at camp today")
+
+
+def test_latest_draft_only_one_winner(cherry_pick, export):
+    msgs, files_map = cherry_pick.build_latest_draft_winners(export, "153niagara")
+    # Multiple draft versions of hot_plate → one message id wins
+    hot = [mid for mid in msgs if "153niagara" in mid]
+    assert len(hot) >= 1
+    for mid, fids in files_map.items():
+        assert mid in msgs
+        assert fids
+
+
+def test_should_import_doc_not_chat(cherry_pick, export):
+    latest, _ = cherry_pick.build_latest_draft_winners(export, "153niagara")
+    picked_docs = 0
+    picked_chat = 0
+    for msg in export.iter_channel_messages("153niagara"):
+        if cherry_pick.should_import(msg, "153niagara", latest_draft_msgs=latest):
+            if msg.get("files"):
+                picked_docs += 1
+            elif (msg.get("text") or "").strip():
+                picked_chat += 1
+    assert picked_docs >= 1
+    # Data-only mode: far fewer bare-text picks than files
+    assert picked_chat <= picked_docs + 5
+
+
+def test_wilson_not_in_auto_channels(cherry_pick):
+    assert "29wilson" not in cherry_pick.AUTO_CHANNELS
+    assert "520steeles" not in cherry_pick.AUTO_CHANNELS
+    assert cherry_pick.RETURN_CHANNELS >= {"29wilson", "520steeles"}
+
+
+def test_dry_run_pick_count(cherry_pick, export, empty_manifest, tmp_path, monkeypatch):
+    path, manifest = empty_manifest
+    monkeypatch.setattr(cherry_pick, "MANIFEST_PATH", tmp_path / "manifest.json")
+    monkeypatch.setattr(cherry_pick, "DEFAULT_EXPORT", export.paths.root)
+
+    import sys
+
+    sys.argv = ["auto-cherry-pick.py", "--dry-run"]
+    # Run pick logic inline
+    cherry_pick.reset_all_picks(manifest)
+    total = 0
+    for ch_name in sorted(cherry_pick.AUTO_CHANNELS):
+        if ch_name in cherry_pick.RETURN_CHANNELS:
+            continue
+        if not export.channel_folder(ch_name):
+            continue
+        latest, _ = cherry_pick.build_latest_draft_winners(export, ch_name)
+        for msg in export.iter_channel_messages(ch_name):
+            if cherry_pick.should_import(msg, ch_name, latest_draft_msgs=latest):
+                total += 1
+    assert 0 < total < 200  # mini fixture stays small

tests/test_cherry_pick_extended.py

@@ -0,0 +1,63 @@
+"""Additional auto-cherry-pick heuristic coverage."""
+
+from __future__ import annotations
+
+
+def test_informative_image_casual_name(cherry_pick):
+    f = {"name": "MVIMG_20190105.jpg", "mimetype": "image/jpeg"}
+    assert not cherry_pick.informative_image(f, "nice photo")
+    assert cherry_pick.informative_image(
+        f, "Invoice total $1,200 due 416-555-0100"
+    )
+
+
+def test_informative_filename(cherry_pick):
+    assert cherry_pick.informative_filename("lease_agreement.pdf")
+    assert not cherry_pick.informative_filename("IMG_0001.jpg")
+
+
+def test_msg_selection_skips_old_draft(cherry_pick):
+    msg = {
+        "id": "ch:1",
+        "files": [
+            {"id": "D1", "name": "draft_v1.docx"},
+            {"id": "D2", "name": "photo.jpg", "mimetype": "image/jpeg"},
+        ],
+    }
+    sel = cherry_pick.msg_selection(msg, latest_draft_files={"D1"})
+    assert sel["files"].get("D1") is True
+    assert "D2" not in sel["files"] or sel["files"].get("D2") is True  # image w/ name
+
+
+def test_draft_group_key_strips_draft_prefix(cherry_pick):
+    key = cherry_pick.draft_group_key("draft_-_hot_plate_v2.docx")
+    assert "draft" not in key.split()[0] or "hot" in key
+    assert "hot" in key.replace("_", " ")
+
+
+def test_text_is_factual_requires_signals(cherry_pick):
+    assert not cherry_pick.text_is_factual("sounds good thanks")
+    assert cherry_pick.text_is_factual("Pay $1,500 to TD account 12345")
+
+
+def test_is_doc_and_image(cherry_pick):
+    assert cherry_pick.is_doc({"name": "x.pdf"})
+    assert cherry_pick.is_image({"name": "x.jpg", "mimetype": "image/jpeg"})
+
+
+def test_channel_entry_skip_shape(cherry_pick):
+    entry = cherry_pick.channel_entry_skip("note")
+    assert entry["status"] == "skip"
+    assert entry["messages"] == {}
+
+
+def test_reset_only_writes(empty_manifest, cherry_pick, tmp_path, monkeypatch):
+    path, _manifest = empty_manifest
+    path.write_text(__import__("json").dumps(_manifest, indent=2) + "\n", encoding="utf-8")
+    monkeypatch.setattr(cherry_pick, "MANIFEST_PATH", path)
+    import sys
+
+    monkeypatch.setattr(sys, "argv", ["auto-cherry-pick.py", "--reset"])
+    assert cherry_pick.main() == 0
+    saved = __import__("json").loads(path.read_text())
+    assert saved["channels"] == {}

tests/test_coverage_gaps.py

@@ -0,0 +1,260 @@
+"""Tests targeting previously uncovered branches."""
+
+from __future__ import annotations
+
+import io
+import json
+import urllib.error
+import urllib.request
+import zipfile
+from pathlib import Path
+import pytest
+
+
+def _status(base: str, path: str, method: str = "GET", body: bytes | None = None):
+    req = urllib.request.Request(
+        f"{base}{path}",
+        data=body,
+        headers={"Content-Type": "application/json"} if body else {},
+        method=method,
+    )
+    try:
+        with urllib.request.urlopen(req, timeout=5) as resp:
+            return resp.status, resp.read()
+    except urllib.error.HTTPError as exc:
+        return exc.code, exc.read()
+
+
+# --- server.py ---
+
+
+def test_file_preview_bad_docx_zip():
+    import server
+
+    out = server.file_preview_payload_bytes(b"PK\x03\x04garbage", "bad.docx")
+    assert out["ok"] is False
+    assert "DOCX" in out["error"] or "Could not" in out["error"]
+
+
+def test_file_preview_quip_html():
+    import server
+
+    html = '<div class="quip-canvas-content"><p>Canvas</p></div>'
+    out = server.file_preview_payload_bytes(html.encode(), "doc.quip")
+    assert out["ok"] and "Canvas" in out["html"]
+
+
+def test_static_file_not_found(api):
+    status, _ = _status(api["base"], "/static/no-such-asset.css")
+    assert status == 404
+
+
+def test_uploads_missing_file(api):
+    status, _ = _status(api["base"], "/uploads/__uploads/missing/deadbeef.bin")
+    assert status in (400, 404)
+
+
+def test_file_preview_by_file_id_not_found(api):
+    status, body = _status(api["base"], "/api/file-preview?file_id=UNKNOWN_FILE_XYZ")
+    assert status == 404
+    data = json.loads(body.decode())
+    assert data["ok"] is False
+
+
+def test_file_preview_by_rel_on_disk(api, review_server):
+    rel_dir = review_server["httpd"].RequestHandlerClass.export.paths.root
+    target = rel_dir / "__uploads" / "T1"
+    target.mkdir(parents=True, exist_ok=True)
+    (target / "note.txt").write_text("fixture preview text", encoding="utf-8")
+    status, body = _status(api["base"], "/api/file-preview?rel=__uploads/T1/note.txt")
+    assert status == 200
+    data = json.loads(body.decode())
+    assert data["ok"]
+    assert "fixture preview" in data["html"]
+
+
+def test_manifest_post_empty_body(api):
+    status, _ = _status(
+        api["base"],
+        "/api/manifest",
+        method="POST",
+        body=b"",
+    )
+    assert status == 400
+
+
+def test_manifest_post_wrong_path(api):
+    status, _ = _status(api["base"], "/api/manifest/extra", method="POST", body=b"{}")
+    assert status == 404
+
+
+def test_manifest_post_invalid_import_mode_defaults(api):
+    api["post"](
+        "/api/manifest",
+        {
+            "channels": {
+                "medical": {
+                    "status": "partial",
+                    "import_mode": "bogus",
+                    "messages": {},
+                }
+            }
+        },
+    )
+    med = api["get"]("/api/manifest")["channels"]["medical"]
+    assert med["import_mode"] == "all"
+
+
+def test_manifest_post_skips_non_dict_user(api):
+    users = api["get"]("/api/users")["users"]
+    uid = users[0]["id"]
+    api["post"](
+        "/api/manifest",
+        {"users": {"bad": "nope", uid: {"import": True, "notes": "", "mattermost_username": ""}}},
+    )
+    again = api["get"]("/api/users")["users"]
+    assert any(u["id"] == uid for u in again)
+
+
+def test_safe_export_path_rejects_dotdot():
+    import server
+    from slack_export import SlackExport
+    from unittest.mock import Mock
+
+    root = Path(__file__).resolve().parents[1] / "tests/fixtures/mini-export"
+    handler = Mock(spec=server.ReviewHandler)
+    handler.export = SlackExport(root)
+    assert server.ReviewHandler._safe_export_path(handler, "../outside") is None
+    assert server.ReviewHandler._safe_export_path(handler, "/etc/passwd") is None
+
+
+# --- slack_export.py ---
+
+
+@pytest.fixture
+def rich_export(tmp_path):
+    from slack_export import SlackExport
+
+    root = tmp_path / "rich"
+    root.mkdir()
+    (root / "channels.json").write_text("[]", encoding="utf-8")
+    (root / "users.json").write_text(
+        json.dumps([{"id": "U1", "name": "u", "profile": {"real_name": "U"}}]),
+        encoding="utf-8",
+    )
+    (root / "canvases.json").write_text(
+        json.dumps([{"id": "CV1", "name": "canvas.pdf", "mimetype": "application/pdf"}]),
+        encoding="utf-8",
+    )
+    ch = root / "ch1"
+    ch.mkdir()
+    (ch / "meta.json").write_text('{"not": "a list"}', encoding="utf-8")
+    (ch / "2016-01-01.json").write_text(
+        json.dumps(
+            [
+                {"subtype": "channel_leave", "ts": "1.0"},
+                {"subtype": "channel_purpose", "purpose": "Purpose here", "ts": "2.0"},
+                {"files": [{"id": "NO_NAME"}]},
+            ]
+        ),
+        encoding="utf-8",
+    )
+    return SlackExport(root)
+
+
+def test_file_index_from_canvases_and_skips_bad_rows(rich_export):
+    idx = rich_export.ensure_file_index()
+    assert "CV1" in idx
+    assert rich_export.file_record("NO_NAME") is None
+
+
+def test_fetch_no_download_url(rich_export):
+    rich_export._file_index = {
+        "X1": {
+            "id": "X1",
+            "name": "a.bin",
+            "local_relpath": "__uploads/X1/a.bin",
+            "local_exists": False,
+            "url_private_download": None,
+        }
+    }
+    with pytest.raises(FileNotFoundError, match="No download URL"):
+        rich_export.fetch_file_bytes("X1")
+
+
+def test_fetch_http_error(rich_export, monkeypatch):
+    rich_export._file_index = {
+        "X2": {
+            "id": "X2",
+            "name": "b.bin",
+            "local_relpath": "__uploads/X2/b.bin",
+            "local_exists": False,
+            "url_private_download": "https://example.com/x?token=xoxe-abc",
+        }
+    }
+
+    def _fail(*args, **kwargs):
+        raise urllib.error.HTTPError("url", 401, "Unauthorized", None, None)
+
+    monkeypatch.setattr("urllib.request.urlopen", _fail)
+    with pytest.raises(FileNotFoundError, match="401"):
+        rich_export.fetch_file_bytes("X2")
+
+
+def test_normalize_leave_and_purpose(rich_export):
+    msgs = rich_export.iter_channel_messages("ch1")
+    texts = [m["text"] for m in msgs]
+    assert any("left" in t for t in texts)
+    assert any("Purpose" in t for t in texts)
+
+
+def test_read_non_list_json_returns_empty(rich_export):
+    assert rich_export.read_messages_file("ch1", "meta") == []
+
+
+def test_list_dates_missing_channel(rich_export):
+    assert rich_export.list_channel_date_files("missing-channel") == []
+
+
+def test_search_files_query_filters_out(rich_export):
+    ch = rich_export.paths.root / "hits"
+    ch.mkdir()
+    (ch / "2017-01-01.json").write_text(
+        json.dumps(
+            [
+                {
+                    "type": "message",
+                    "user": "U1",
+                    "ts": "1.0",
+                    "text": "alpha",
+                    "files": [{"id": "F9", "name": "pic.png", "mimetype": "image/png"}],
+                }
+            ]
+        ),
+        encoding="utf-8",
+    )
+    ex = rich_export
+    out = ex.search_files_global("zzzznomatch", file_type="image", limit=10)
+    assert out["hits"] == []
+
+
+def test_search_global_hits_limit(export):
+    out = export.search_global("a", limit=1)
+    assert len(out["messages"]) <= 1
+
+
+def test_search_messages_stops_at_limit(export):
+    hits = export.search_messages("zoey", "a", limit=2)
+    assert len(hits) <= 2
+
+
+def test_classify_word_doc(export):
+    assert export.classify_file({"name": "x.doc", "mimetype": "application/msword"}) == "doc"
+
+
+def test_register_file_raw_skips_incomplete(export):
+    export._file_index = {}
+    export._register_file_raw({"name": "onlyname"})
+    export._register_file_raw({"id": "idonly"})
+    assert export.file_record("onlyname") is None
+    assert export.file_record("idonly") is None

tests/test_helpers.py

@@ -0,0 +1,113 @@
+"""Tests for small helpers in slack_export and server."""
+
+from __future__ import annotations
+
+import io
+import json
+import zipfile
+from pathlib import Path
+
+import pytest
+
+from slack_export import SlackExport, load_json, resolve_paths, slack_ts_to_iso, user_display
+
+
+def test_slack_ts_to_iso():
+    assert slack_ts_to_iso("1476210563.000002") is not None
+    assert "2016" in slack_ts_to_iso("1476210563.000002")
+    assert slack_ts_to_iso(None) is None
+    assert slack_ts_to_iso("not-a-ts") is None
+
+
+def test_user_display_fallbacks():
+    assert user_display(None) == "unknown"
+    assert user_display({"name": "bot", "is_bot": True}) == "bot"
+    assert user_display({"profile": {"display_name": "Ilia"}, "name": "jedi"}) == "Ilia"
+
+
+def test_resolve_paths_custom_root(fixture_export_path):
+    paths = resolve_paths(fixture_export_path)
+    assert paths.root == fixture_export_path.resolve()
+    assert paths.channels_json.name == "channels.json"
+
+
+def test_load_json_roundtrip(tmp_path):
+    p = tmp_path / "x.json"
+    p.write_text('{"a": 1}', encoding="utf-8")
+    assert load_json(p) == {"a": 1}
+
+
+def test_server_manifest_helpers(tmp_path, fixture_export_path):
+    import server
+
+    path = tmp_path / "m.json"
+    default = server.default_manifest(str(fixture_export_path))
+    assert default["version"] == 1
+
+    loaded = server.load_manifest(path, str(fixture_export_path))
+    assert loaded["export_path"] == str(fixture_export_path)
+
+    path.write_text("{not json", encoding="utf-8")
+    with pytest.raises(json.JSONDecodeError):
+        server.load_manifest(path, str(fixture_export_path))
+
+    server.save_manifest(path, {"version": 1, "channels": {}})
+    assert path.is_file()
+    assert "updated_at" in load_json(path)
+
+
+def test_file_preview_payload_bytes_text_and_html():
+    import server
+
+    txt = server.file_preview_payload_bytes(b"hello world", "notes.txt")
+    assert txt["ok"] and "hello" in txt["html"]
+
+    html = server.file_preview_payload_bytes(
+        b"<html><body><h1>Title</h1></body></html>", "page.html"
+    )
+    assert html["ok"] and html["kind"] == "html"
+
+    bad = server.file_preview_payload_bytes(b"\x00\x01\xff", "binary.dat")
+    assert not bad["ok"]
+
+
+def test_file_preview_payload_bytes_docx(tmp_path):
+    import server
+
+    buf = io.BytesIO()
+    with zipfile.ZipFile(buf, "w") as zf:
+        zf.writestr(
+            "word/document.xml",
+            '<?xml version="1.0"?>'
+            '<w:document xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main">'
+            "<w:p><w:r><w:t>Lease terms</w:t></w:r></w:p></w:document>",
+        )
+    raw = buf.getvalue()
+    out = server.file_preview_payload_bytes(raw, "lease.docx")
+    assert out["ok"]
+    assert "Lease" in out["html"]
+
+    path = tmp_path / "lease.docx"
+    path.write_bytes(raw)
+    assert "Lease" in server.file_preview_payload(path)["html"]
+
+
+def test_docx_to_html_file(tmp_path):
+    import server
+
+    buf = io.BytesIO()
+    with zipfile.ZipFile(buf, "w") as zf:
+        zf.writestr(
+            "word/document.xml",
+            '<?xml version="1.0"?>'
+            '<w:document xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main">'
+            "<w:p><w:r><w:t>Line one</w:t></w:r></w:p></w:document>",
+        )
+    path = tmp_path / "t.docx"
+    path.write_bytes(buf.getvalue())
+    assert "Line one" in server.docx_to_html(path)
+
+
+def test_export_missing_root_raises():
+    with pytest.raises(FileNotFoundError):
+        SlackExport("/nonexistent/export/path")

tests/test_prepare_export.py

@@ -0,0 +1,151 @@
+"""Tests that manifest selections produce a valid filtered Slack export."""
+
+from __future__ import annotations
+
+import json
+import shutil
+import sys
+from pathlib import Path
+
+import pytest
+
+REPO = Path(__file__).resolve().parents[1]
+
+
+def _load_prepare():
+    import importlib.util
+
+    path = REPO / "scripts" / "prepare-export.py"
+    spec = importlib.util.spec_from_file_location("prepare_export", path)
+    mod = importlib.util.module_from_spec(spec)
+    assert spec.loader
+    spec.loader.exec_module(mod)
+    return mod
+
+
+@pytest.fixture
+def prepare_mod():
+    return _load_prepare()
+
+
+def test_channel_included_rules(prepare_mod):
+    assert prepare_mod.channel_included({"status": "import", "import_mode": "all"})
+    assert not prepare_mod.channel_included({"status": "skip"})
+    assert prepare_mod.channel_included(
+        {
+            "status": "partial",
+            "import_mode": "pick",
+            "messages": {"medical:1.0": {"action": "import", "checked": True}},
+        }
+    )
+    assert not prepare_mod.channel_included(
+        {"status": "partial", "import_mode": "pick", "messages": {}}
+    )
+
+
+def test_message_and_files_filter(prepare_mod):
+    entry = {
+        "status": "partial",
+        "import_mode": "pick",
+        "messages": {
+            "ch:1000.1": {
+                "action": "import",
+                "files": {"F1": True, "F2": False},
+            }
+        },
+    }
+    assert prepare_mod.message_included(entry, "ch:1000.1")
+    assert not prepare_mod.message_included(entry, "ch:1000.2")
+    raw = {
+        "ts": "1000.1",
+        "text": "hi",
+        "files": [
+            {"id": "F1", "name": "a.pdf"},
+            {"id": "F2", "name": "b.pdf"},
+        ],
+    }
+    out = prepare_mod.filter_files_on_message(entry, "ch:1000.1", raw)
+    assert len(out["files"]) == 1
+    assert out["files"][0]["id"] == "F1"
+
+
+def test_prepare_export_writes_slack_shape(prepare_mod, fixture_export_path, tmp_path):
+    from slack_export import SlackExport
+
+    export = SlackExport(fixture_export_path)
+    msgs = export.iter_channel_messages("medical")
+    pick = msgs[0]
+    key = pick["id"]
+
+    manifest = {
+        "channels": {
+            "medical": {
+                "status": "partial",
+                "import_mode": "pick",
+                "import": True,
+                "messages": {key: {"action": "import", "checked": True, "files": {}}},
+            }
+        }
+    }
+    out = tmp_path / "prepared"
+    stats = prepare_mod.prepare_export(fixture_export_path, manifest, out, export_mod=export)
+    assert stats["medical"] == 1
+    assert (out / "channels.json").is_file()
+    assert (out / "users.json").is_file()
+    assert (out / "medical").is_dir()
+    day_files = list((out / "medical").glob("*.json"))
+    assert len(day_files) == 1
+    written = json.loads(day_files[0].read_text(encoding="utf-8"))
+    assert len(written) == 1
+    assert written[0]["ts"] == pick["ts"]
+    assert (out / "prepare-export-summary.json").is_file()
+
+
+def test_prepare_whole_channel(prepare_mod, fixture_export_path, tmp_path):
+    from slack_export import SlackExport
+
+    export = SlackExport(fixture_export_path)
+    total = len(export.iter_channel_messages("medical"))
+    manifest = {
+        "channels": {
+            "medical": {
+                "status": "import",
+                "import_mode": "all",
+                "import": True,
+                "messages": {},
+            }
+        }
+    }
+    out = tmp_path / "prepared-all"
+    stats = prepare_mod.prepare_export(fixture_export_path, manifest, out, export_mod=export)
+    assert stats["medical"] == total
+
+
+def test_prepare_skips_channel(prepare_mod, fixture_export_path, tmp_path):
+    from slack_export import SlackExport
+
+    export = SlackExport(fixture_export_path)
+    manifest = {
+        "channels": {
+            "medical": {"status": "skip", "import": False, "messages": {}},
+            "zoey": {
+                "status": "partial",
+                "import_mode": "pick",
+                "import": True,
+                "messages": {
+                    export.iter_channel_messages("zoey")[0]["id"]: {
+                        "action": "import",
+                        "checked": True,
+                    }
+                },
+            },
+        }
+    }
+    out = tmp_path / "prepared-skip"
+    stats = prepare_mod.prepare_export(fixture_export_path, manifest, out, export_mod=export)
+    assert "medical" not in stats
+    assert stats["zoey"] == 1
+    meta = json.loads((out / "channels.json").read_text(encoding="utf-8"))
+    names = {c["name"] for c in meta}
+    assert "medical" not in names
+    assert "zoey" in names

tests/test_preset_skips.py

@@ -0,0 +1,50 @@
+"""Tests for scripts/preset-skips.py."""
+
+from __future__ import annotations
+
+import importlib.util
+import json
+from pathlib import Path
+
+import pytest
+
+REPO = Path(__file__).resolve().parents[1]
+
+
+def _load_preset_skips():
+    path = REPO / "scripts" / "preset-skips.py"
+    spec = importlib.util.spec_from_file_location("preset_skips", path)
+    mod = importlib.util.module_from_spec(spec)
+    assert spec.loader
+    spec.loader.exec_module(mod)
+    return mod
+
+
+def test_load_preset_tiers():
+    mod = _load_preset_skips()
+    preset = mod.load_preset(REPO / "presets" / "levkin-skips.json")
+    assert "medical" in preset["skip_all"]
+    assert "zoey" in preset["review_priority"]
+    assert "29wilson" in preset["tier_b"]
+
+
+def test_channel_entry_skip():
+    mod = _load_preset_skips()
+    entry = mod.channel_entry_skip("tier-a")
+    assert entry["status"] == "skip"
+    assert entry["reviewed"] is True
+
+
+def test_main_writes_manifest(tmp_path, fixture_export_path, monkeypatch):
+    mod = _load_preset_skips()
+    manifest_path = tmp_path / "manifest.json"
+    monkeypatch.setattr(mod, "MANIFEST_PATH", manifest_path)
+    monkeypatch.setattr(mod, "DEFAULT_EXPORT", fixture_export_path)
+
+    import sys
+
+    sys.argv = ["preset-skips.py", str(fixture_export_path)]
+    assert mod.main() == 0
+    data = json.loads(manifest_path.read_text())
+    assert data["channels"]["medical"]["status"] == "skip"
+    assert "zoey" not in data["channels"] or data["channels"].get("zoey", {}).get("status") != "skip"

tests/test_server.py

@@ -0,0 +1,112 @@
+"""HTTP API tests against the review server (mini-export)."""
+
+from __future__ import annotations
+
+import json
+
+
+def test_health(api):
+    data = api["get"]("/api/health")
+    assert data["ok"] is True
+    assert "mini-export" in data["export_path"]
+
+
+def test_summary(api):
+    data = api["get"]("/api/summary")
+    assert data["channel_count"] >= 3
+    assert data["total_messages"] > 0
+
+
+def test_channels_list(api):
+    data = api["get"]("/api/channels")
+    names = {c["name"] for c in data["channels"]}
+    assert "medical" in names
+    med = next(c for c in data["channels"] if c["name"] == "medical")
+    assert med["status"] == "partial"
+    assert med["import_mode"] == "pick"
+
+
+def test_channel_messages_all(api):
+    data = api["get"]("/api/channels/medical/messages/all")
+    assert data["channel"] == "medical"
+    assert data["total"] == len(data["messages"])
+    assert data["total"] > 0
+
+
+def test_search_messages(api):
+    data = api["get"]("/api/search?q=doctor&limit=10")
+    assert "messages" in data
+
+
+def test_search_files(api):
+    data = api["get"]("/api/search-files?type=pdf&q=&limit=10")
+    assert data["file_type"] == "pdf"
+    assert "hits" in data
+
+
+def test_manifest_roundtrip(api):
+    got = api["get"]("/api/manifest")
+    assert "channels" in got
+    got["global_notes"] = "pytest was here"
+    api["post"]("/api/manifest", {"global_notes": "pytest was here", "channels": got["channels"], "users": {}})
+    again = api["get"]("/api/manifest")
+    assert again["global_notes"] == "pytest was here"
+
+
+def test_manifest_merge_preserves_other_channel_picks(api):
+    api["post"](
+        "/api/manifest",
+        {
+            "channels": {
+                "medical": {
+                    "import": True,
+                    "status": "partial",
+                    "import_mode": "pick",
+                    "reviewed": True,
+                    "messages": {
+                        "medical:test:1": {
+                            "action": "import",
+                            "checked": True,
+                            "files": {},
+                            "notes": "",
+                            "merge_target": "",
+                        }
+                    },
+                }
+            }
+        },
+    )
+    api["post"](
+        "/api/manifest",
+        {
+            "channels": {
+                "zoey": {
+                    "import": True,
+                    "status": "partial",
+                    "import_mode": "pick",
+                    "reviewed": True,
+                    "messages": {
+                        "zoey:test:2": {
+                            "action": "import",
+                            "checked": True,
+                            "files": {},
+                            "notes": "",
+                            "merge_target": "",
+                        }
+                    },
+                }
+            }
+        },
+    )
+    merged = api["get"]("/api/manifest")
+    assert "medical:test:1" in merged["channels"]["medical"]["messages"]
+    assert "zoey:test:2" in merged["channels"]["zoey"]["messages"]
+
+
+def test_static_index(api):
+    import urllib.request
+
+    with urllib.request.urlopen(f"{api['base']}/", timeout=5) as resp:
+        html = resp.read().decode()
+    assert "Slack import review" in html
+    assert "filter-status" in html

tests/test_server_extended.py

@@ -0,0 +1,162 @@
+"""Additional HTTP API and server module coverage."""
+
+from __future__ import annotations
+
+import json
+import urllib.error
+import urllib.request
+
+import pytest
+
+
+def _get_raw(base: str, path: str) -> tuple[int, bytes]:
+    try:
+        with urllib.request.urlopen(f"{base}{path}", timeout=5) as resp:
+            return resp.status, resp.read()
+    except urllib.error.HTTPError as exc:
+        return exc.code, exc.read()
+
+
+def test_users_list(api):
+    data = api["get"]("/api/users")
+    assert isinstance(data["users"], list)
+    if data["users"]:
+        assert "id" in data["users"][0]
+
+
+def test_channel_search_endpoint(api):
+    data = api["get"]("/api/channels/medical/search?q=doctor")
+    assert data["channel"] == "medical"
+    assert isinstance(data["hits"], list)
+
+
+def test_channel_messages_paged(api):
+    data = api["get"]("/api/channels/zoey/messages?limit=3&offset=0")
+    assert data["channel"] == "zoey"
+    assert len(data["messages"]) <= 3
+    assert "dates" in data
+
+
+def test_channels_filter_query(api):
+    data = api["get"]("/api/channels?q=med")
+    names = {c["name"] for c in data["channels"]}
+    assert "medical" in names
+
+
+def test_file_preview_missing_rel(api):
+    status, body = _get_raw(api["base"], "/api/file-preview?rel=../outside.txt")
+    assert status == 404
+    data = json.loads(body.decode())
+    assert data["ok"] is False
+
+
+def test_file_preview_traversal_blocked(api):
+    status, _ = _get_raw(api["base"], "/api/file-preview?rel=..%2F..%2Fetc%2Fpasswd")
+    assert status in (400, 404)
+
+
+def test_file_download_bad_id(api):
+    status, _ = _get_raw(api["base"], "/api/file-download?file_id=NOPE")
+    assert status == 404
+
+
+def test_file_download_missing_param(api):
+    status, _ = _get_raw(api["base"], "/api/file-download")
+    assert status == 400
+
+
+def test_uploads_path_traversal(api):
+    status, _ = _get_raw(api["base"], "/uploads/..%2F..%2Fetc%2Fpasswd")
+    assert status == 400
+
+
+def test_static_css(api):
+    status, body = _get_raw(api["base"], "/static/app.css")
+    assert status == 200
+    assert b"message" in body or len(body) > 0
+
+
+def test_options_cors(api):
+    req = urllib.request.Request(
+        f"{api['base']}/api/manifest",
+        method="OPTIONS",
+    )
+    with urllib.request.urlopen(req, timeout=5) as resp:
+        assert resp.status == 204
+        assert resp.headers.get("Access-Control-Allow-Origin") == "*"
+
+
+def test_manifest_invalid_json(api):
+    req = urllib.request.Request(
+        f"{api['base']}/api/manifest",
+        data=b"{not valid json",
+        headers={"Content-Type": "application/json"},
+        method="POST",
+    )
+    with pytest.raises(urllib.error.HTTPError) as exc:
+        urllib.request.urlopen(req, timeout=5)
+    assert exc.value.code == 400
+
+
+def test_not_found_route(api):
+    status, _ = _get_raw(api["base"], "/api/does-not-exist")
+    assert status == 404
+
+
+def test_manifest_post_users(api):
+    users_before = api["get"]("/api/users")["users"]
+    assert users_before
+    uid = users_before[0]["id"]
+    api["post"](
+        "/api/manifest",
+        {
+            "users": {
+                uid: {
+                    "import": True,
+                    "notes": "mapped",
+                    "mattermost_username": "testuser",
+                }
+            }
+        },
+    )
+    users = api["get"]("/api/users")["users"]
+    match = next((u for u in users if u["id"] == uid), None)
+    assert match and match["import"] and match["mattermost_username"] == "testuser"
+
+
+def test_manifest_post_invalid_channel_entry_skipped(api):
+    api["post"](
+        "/api/manifest",
+        {"channels": {"bad": "not-a-dict", "medical": {"status": "partial", "import_mode": "pick"}}},
+    )
+    med = api["get"]("/api/manifest")["channels"]["medical"]
+    assert med["status"] == "partial"
+
+
+def test_file_download_local_upload(api, tmp_path, review_server):
+    """Download endpoint serves bytes when upload is on disk."""
+    import sys
+
+    sys.path.insert(0, str(__import__("pathlib").Path(__file__).resolve().parents[1]))
+    from slack_export import SlackExport
+
+    root = tmp_path / "dl_export"
+    root.mkdir()
+    (root / "channels.json").write_text("[]", encoding="utf-8")
+    (root / "users.json").write_text("[]", encoding="utf-8")
+    up = root / "__uploads" / "FID1"
+    up.mkdir(parents=True)
+    (up / "doc.pdf").write_bytes(b"%PDF-1.4")
+    ex = SlackExport(root)
+    ex.ensure_file_index()
+    ex._file_index["FID1"] = {
+        "id": "FID1",
+        "name": "doc.pdf",
+        "local_relpath": "__uploads/FID1/doc.pdf",
+        "local_exists": True,
+        "url_private_download": None,
+    }
+    review_server["httpd"].RequestHandlerClass.export = ex
+    status, body = _get_raw(api["base"], "/api/file-download?file_id=FID1")
+    assert status == 200
+    assert body.startswith(b"%PDF")

tests/test_slack_export.py

@@ -0,0 +1,58 @@
+"""Unit tests for slack_export.py (mini-export fixture)."""
+
+from __future__ import annotations
+
+
+def test_fixture_has_expected_channels(export):
+    names = {c["name"] for c in export.build_summary()["channels"]}
+    assert names >= {"medical", "zoey", "153niagara"}
+
+
+def test_normalize_message_shape(export):
+    msgs = export.iter_channel_messages("medical")
+    msg = msgs[0]
+    assert "id" in msg
+    assert "channel" in msg
+    assert msg["channel"] == "medical"
+    assert "user_name" in msg
+    assert "text" in msg
+
+
+def test_classify_file_types(export):
+    assert export.classify_file({"name": "lease.pdf", "mimetype": "application/pdf"}) == "pdf"
+    assert export.classify_file({"name": "photo.jpg", "mimetype": "image/jpeg"}) == "image"
+    assert export.classify_file({"name": "data.xlsx", "mimetype": ""}) == "spreadsheet"
+
+
+def test_search_channels(export):
+    hits = export.search_channels("med")
+    assert any(c["name"] == "medical" for c in hits)
+    assert not any(c["name"] == "zoey" for c in hits)
+
+
+def test_search_global_text(export):
+    result = export.search_global("doctor", limit=20)
+    assert result["query"] == "doctor"
+    assert isinstance(result["messages"], list)
+
+
+def test_search_files_global_images(export):
+    result = export.search_files_global("", file_type="image", limit=30)
+    assert result["file_type"] == "image"
+    for hit in result["hits"]:
+        kinds = set(hit.get("file_kinds") or [])
+        assert "image" in kinds
+
+
+def test_channel_messages_all_sorted(export):
+    data = export.channel_messages_all("zoey")
+    assert data["channel"] == "zoey"
+    assert data["total"] == len(data["messages"])
+    times = [m.get("time") or "" for m in data["messages"]]
+    assert times == sorted(times)
+
+
+def test_upload_path_safe(export):
+    rel = export.upload_relpath("F123", "my file.pdf")
+    assert rel == "__uploads/F123/my file.pdf"
+    assert ".." not in rel

tests/test_slack_export_extended.py

@@ -0,0 +1,203 @@
+"""Additional slack_export coverage — normalize, index, pagination, search."""
+
+from __future__ import annotations
+
+import json
+from pathlib import Path
+
+import pytest
+
+from slack_export import SlackExport
+
+
+@pytest.fixture
+def export_with_synthetic(tmp_path, fixture_export_path):
+    """Mini export plus synthetic message edge cases."""
+    ch = tmp_path / "synthetic"
+    ch.mkdir()
+    (tmp_path / "channels.json").write_text(
+        json.dumps([{"name": "synthetic", "id": "C1"}]),
+        encoding="utf-8",
+    )
+    (tmp_path / "users.json").write_text(
+        json.dumps(
+            [
+                {
+                    "id": "U1",
+                    "name": "ilia",
+                    "profile": {"display_name": "Ilia", "real_name": "Ilia L"},
+                }
+            ]
+        ),
+        encoding="utf-8",
+    )
+    messages = [
+        {"type": "message", "user": "U1", "ts": "1000.1", "subtype": "channel_join"},
+        {
+            "type": "message",
+            "user": "U1",
+            "ts": "1000.2",
+            "subtype": "channel_topic",
+            "topic": "Rentals",
+        },
+        {
+            "type": "message",
+            "user": "U1",
+            "ts": "1000.3",
+            "subtype": "file_share",
+            "files": [{"id": "F1", "name": "invoice.pdf", "mimetype": "application/pdf"}],
+        },
+        {
+            "type": "message",
+            "user": "U1",
+            "ts": "1000.4",
+            "thread_ts": "1000.4",
+            "reply_count": 2,
+            "text": "Thread root",
+        },
+        {
+            "type": "message",
+            "user": "U1",
+            "ts": "1000.5",
+            "thread_ts": "1000.4",
+            "text": "Reply",
+        },
+        {"type": "message", "bot_id": "B1", "ts": "1000.6", "text": "bot says hi"},
+        {"type": "message", "user": "U1", "ts": "1000.7", "blocks": [{"type": "section"}]},
+        {"type": "message", "user": "U1", "ts": "1000.8", "attachments": [{"text": "card"}]},
+    ]
+    (ch / "2016-10-10.json").write_text(json.dumps(messages), encoding="utf-8")
+    return SlackExport(tmp_path)
+
+
+def test_classify_all_file_kinds(export):
+    assert export.classify_file({"name": "x.pptx"}) == "slides"
+    assert export.classify_file({"name": "x.mp4", "mimetype": "video/mp4"}) == "video"
+    assert export.classify_file({"name": "x.mp3"}) == "audio"
+    assert export.classify_file({"name": "x.zip"}) == "archive"
+    assert export.classify_file({"name": "readme.md"}) == "text"
+    assert export.classify_file({"name": "unknown.bin"}) == "other"
+
+
+def test_normalize_message_subtypes(export_with_synthetic):
+    msgs = export_with_synthetic.iter_channel_messages("synthetic")
+    by_ts = {m["ts"]: m for m in msgs}
+    assert "joined" in by_ts["1000.1"]["text"]
+    assert "Rentals" in by_ts["1000.2"]["text"]
+    assert "invoice.pdf" in by_ts["1000.3"]["text"]
+    assert by_ts["1000.5"]["is_thread_reply"]
+    assert by_ts["1000.4"]["thread_reply_count"] >= 1
+    assert by_ts["1000.6"]["is_bot"]
+    assert by_ts["1000.7"]["text"] == "[rich message]"
+    assert by_ts["1000.8"]["text"] == "[attachment]"
+
+
+def test_ensure_file_index(export_with_synthetic):
+    idx = export_with_synthetic.ensure_file_index()
+    assert "F1" in idx
+    assert idx["F1"]["name"] == "invoice.pdf"
+
+
+def test_file_record_unknown(export):
+    assert export.file_record("NONEXISTENT_ID_XYZ") is None
+
+
+def test_channel_messages_page_pagination(export):
+    page = export.channel_messages_page("zoey", limit=2, offset=0)
+    assert page["channel"] == "zoey"
+    assert len(page["messages"]) <= 2
+    assert page["total_in_date"] >= len(page["messages"])
+    if page["has_more"]:
+        page2 = export.channel_messages_page("zoey", limit=2, offset=2)
+        assert page2["offset"] == 2
+
+
+def test_channel_messages_page_empty_channel(tmp_path):
+    empty = tmp_path / "empty_export"
+    empty.mkdir()
+    (empty / "channels.json").write_text("[]", encoding="utf-8")
+    (empty / "users.json").write_text("[]", encoding="utf-8")
+    (empty / "ghost").mkdir()
+    ex = SlackExport(empty)
+    out = ex.channel_messages_page("ghost")
+    assert out["messages"] == []
+    assert out["has_more"] is False
+
+
+def test_search_messages_channel_scoped(export):
+    hits = export.search_messages("medical", "doctor", limit=5)
+    assert isinstance(hits, list)
+    assert export.search_messages("medical", "", limit=5) == []
+
+
+def test_search_global_empty_query(export):
+    out = export.search_global("  ", limit=5)
+    assert out["channels"] == []
+    assert out["messages"] == []
+
+
+def test_search_global_channel_name(export):
+    out = export.search_global("niagara", limit=10)
+    assert any(c["name"] == "153niagara" for c in out["channels"])
+
+
+def test_search_files_with_query(export):
+    out = export.search_files_global("proof", file_type="all", limit=10)
+    assert "hits" in out
+
+
+def test_channel_stats_missing(export):
+    stats = export.channel_stats("no-such-channel-xyz")
+    assert stats["exists_in_export"] is False
+    assert stats["message_count"] == 0
+
+
+def test_read_messages_invalid_date(export):
+    assert export.read_messages_file("medical", "2099-99-99") == []
+
+
+def test_attach_thread_reply_counts(export_with_synthetic):
+    msgs = export_with_synthetic.iter_channel_messages("synthetic")
+    assert any(m.get("thread_reply_count", 0) > 0 for m in msgs)
+
+
+def test_fetch_file_bytes_local(tmp_path, export_with_synthetic):
+    rec = export_with_synthetic.file_record("F1")
+    assert rec
+    local = export_with_synthetic.paths.root / rec["local_relpath"]
+    local.parent.mkdir(parents=True, exist_ok=True)
+    local.write_bytes(b"%PDF-1.4 test")
+    data, meta = export_with_synthetic.fetch_file_bytes("F1")
+    assert data.startswith(b"%PDF")
+    assert meta["id"] == "F1"
+
+
+def test_fetch_file_bytes_remote(export_with_synthetic, monkeypatch):
+    rec = export_with_synthetic.file_record("F1")
+    local = export_with_synthetic.paths.root / rec["local_relpath"]
+    if local.is_file():
+        local.unlink()
+
+    class _Resp:
+        def read(self):
+            return b"remote-bytes"
+
+        def __enter__(self):
+            return self
+
+        def __exit__(self, *args):
+            pass
+
+    monkeypatch.setattr("urllib.request.urlopen", lambda *a, **k: _Resp())
+    rec_entry = export_with_synthetic.ensure_file_index()["F1"]
+    rec_entry["url_private_download"] = "https://files.slack.com/x?token=xoxe-test"
+
+    data, meta = export_with_synthetic.fetch_file_bytes("F1")
+    assert data == b"remote-bytes"
+    assert local.is_file()
+    assert meta["local_exists"] is True
+
+
+def test_fetch_file_bytes_unknown_id(export):
+    with pytest.raises(FileNotFoundError, match="Unknown file"):
+        export.fetch_file_bytes("NO_SUCH_FILE")