---
description: Testing conventions for Rust and TypeScript
globs: "**/*.test.{ts,tsx}"
alwaysApply: false
---

# Testing Conventions

## Rust Tests (cargo test)

- In-module `#[cfg(test)]` blocks using `Database::in_memory()`
- Test naming: `snake_case` describing behavior (e.g. `trim_preserves_pinned_entries`)
- All tests must pass before committing: `cd src-tauri && cargo test`

## Frontend Tests (Vitest)

- Use `@testing-library/react` with `jsdom` environment
- Mock Tauri APIs in `src/test/setup.ts` — never call real IPC in tests
- Use `makeEntry()` and `makeSettings()` factories for test data
- Call `resetIdCounter()` in `beforeEach` when IDs matter
- When testing async Tauri commands, use `waitFor()` assertions
- Guard `scrollIntoView` with optional chaining (`el?.scrollIntoView?.()`) since jsdom doesn't implement it

## Running Tests

```bash
cd src-tauri && cargo test    # Rust: 27 tests
npx vitest run                # Frontend: 47 tests
```