---
phase: 09-ci-pipeline
plan: 02
type: execute
wave: 2
depends_on: ["09-01"]
files_modified:
  - src/lib/utils/highlightText.test.ts
  - src/lib/utils/parseHashtags.test.ts
  - src/lib/components/SearchBar.svelte.test.ts
  - src/lib/components/TagInput.svelte.test.ts
  - src/lib/components/CompletedToggle.svelte.test.ts
  - vite.config.ts
autonomous: true

must_haves:
  truths:
    - "All utility functions have passing tests"
    - "Component tests run in real browser via Vitest browser mode"
    - "Coverage threshold is enforced (starts with autoUpdate baseline)"
  artifacts:
    - path: "src/lib/utils/highlightText.test.ts"
      provides: "Tests for text highlighting utility"
      min_lines: 20
    - path: "src/lib/utils/parseHashtags.test.ts"
      provides: "Tests for hashtag parsing utility"
      min_lines: 20
    - path: "src/lib/components/SearchBar.svelte.test.ts"
      provides: "Browser-mode test for SearchBar component"
      min_lines: 25
    - path: "src/lib/components/TagInput.svelte.test.ts"
      provides: "Browser-mode test for TagInput component"
      min_lines: 25
    - path: "src/lib/components/CompletedToggle.svelte.test.ts"
      provides: "Browser-mode test for toggle component"
      min_lines: 20
  key_links:
    - from: "src/lib/components/SearchBar.svelte.test.ts"
      to: "vitest-browser-svelte"
      via: "render import"
      pattern: "import.*render.*from.*vitest-browser-svelte"
---

<objective>
Write unit tests for utility functions and initial component tests to establish testing patterns.

Purpose: Create comprehensive tests for pure utility functions (easy wins for coverage) and establish the component testing pattern using Vitest browser mode. This proves both test project configurations work.

Output: All utility functions tested, 3 component tests demonstrating the browser-mode pattern, coverage baseline established.
</objective>

<execution_context>
@/home/tho/.claude/get-shit-done/workflows/execute-plan.md
@/home/tho/.claude/get-shit-done/templates/summary.md
</execution_context>

<context>
@.planning/PROJECT.md
@.planning/phases/09-ci-pipeline/09-RESEARCH.md
@.planning/phases/09-ci-pipeline/09-01-SUMMARY.md

@src/lib/utils/highlightText.ts
@src/lib/utils/parseHashtags.ts
@src/lib/components/SearchBar.svelte
@src/lib/components/TagInput.svelte
@src/lib/components/CompletedToggle.svelte
@vitest-setup-client.ts
</context>

<tasks>

<task type="auto">
  <name>Task 1: Write unit tests for remaining utility functions</name>
  <files>src/lib/utils/highlightText.test.ts, src/lib/utils/parseHashtags.test.ts</files>
  <action>
Read each utility file to understand its behavior, then write comprehensive tests:

**highlightText.test.ts:**
- Import function and test utilities from vitest
- Test: Returns original text when no search term
- Test: Highlights single match with mark tag
- Test: Highlights multiple matches
- Test: Case-insensitive matching
- Test: Handles special regex characters in search term
- Test: Returns empty string for empty input

**parseHashtags.test.ts:**
- Import function and test utilities from vitest
- Test: Extracts single hashtag from text
- Test: Extracts multiple hashtags
- Test: Returns empty array when no hashtags
- Test: Handles hashtags at start/middle/end of text
- Test: Ignores invalid hashtag patterns (e.g., # alone, #123)
- Test: Removes duplicates if function does that

Each test file should have describe block with descriptive test names.
Use `it.each` for data-driven tests where appropriate.
  </action>
  <verify>
Run `npm run test:unit -- --reporter=verbose` - all utility tests pass
Run `npm run test:coverage` - shows improved coverage for src/lib/utils/
  </verify>
  <done>All 3 utility functions (filterEntries, highlightText, parseHashtags) have comprehensive test coverage.</done>
</task>

<task type="auto">
  <name>Task 2: Write browser-mode component tests for 3 simpler components</name>
  <files>src/lib/components/SearchBar.svelte.test.ts, src/lib/components/TagInput.svelte.test.ts, src/lib/components/CompletedToggle.svelte.test.ts</files>
  <action>
Create .svelte.test.ts files (note: .svelte.test.ts NOT .test.ts for browser mode) for three simpler components.

**Pattern for all component tests:**
```typescript
import { render } from 'vitest-browser-svelte';
import { page } from '@vitest/browser/context';
import { describe, expect, it } from 'vitest';
import ComponentName from './ComponentName.svelte';
```

**SearchBar.svelte.test.ts:**
- Read SearchBar.svelte to understand props and behavior
- Test: Renders input element
- Test: Calls onSearch callback when user types (if applicable)
- Test: Shows clear button when text entered (if applicable)
- Test: Placeholder text is visible

**TagInput.svelte.test.ts:**
- Read TagInput.svelte to understand props and behavior
- Test: Renders tag input element
- Test: Can add a tag (simulate user typing and pressing enter/adding)
- Test: Displays existing tags if passed as prop

**CompletedToggle.svelte.test.ts:**
- Read CompletedToggle.svelte to understand props
- Test: Renders toggle in unchecked state by default
- Test: Toggle state changes on click
- Test: Calls callback when toggled (if applicable)

Use `page.getByRole()`, `page.getByText()`, `page.getByPlaceholder()` for element selection.
Use `await button.click()` for interactions.
Use `flushSync()` from 'svelte' after external state changes if needed.
Use `await expect.element(locator).toBeInTheDocument()` for assertions.
  </action>
  <verify>
Run `npm run test:unit` - component tests run in browser mode (you'll see Chromium launch)
All 3 component tests pass
  </verify>
  <done>Browser-mode component testing pattern established with 3 working tests.</done>
</task>

<task type="auto">
  <name>Task 3: Configure coverage thresholds with baseline</name>
  <files>vite.config.ts</files>
  <action>
Update vite.config.ts coverage configuration:

1. Set initial thresholds using autoUpdate to establish baseline:
```typescript
thresholds: {
  autoUpdate: true, // Will update thresholds based on current coverage
}
```

2. Run `npm run test:coverage` once to establish baseline thresholds

3. Review the auto-updated thresholds in vite.config.ts

4. If coverage is already above 30%, manually set thresholds to a reasonable starting point (e.g., 50% of current coverage) with a path toward 80%:
```typescript
thresholds: {
  global: {
    statements: [current - 10],
    branches: [current - 10],
    functions: [current - 10],
    lines: [current - 10],
  },
}
```

5. Add comment noting the target is 80% coverage (CI-01 decision)

Note: Full 80% coverage will be achieved incrementally. This plan establishes the enforcement mechanism.
  </action>
  <verify>
Run `npm run test:coverage` - shows coverage percentages
Coverage thresholds are set in vite.config.ts
Future test runs will fail if coverage drops below threshold
  </verify>
  <done>Coverage thresholds configured. Enforcement mechanism in place for incremental coverage improvement.</done>
</task>

</tasks>

<verification>
1. `npm run test:unit` runs all tests (utility + component)
2. Component tests run in Chromium browser (browser mode working)
3. `npm run test:coverage` shows coverage for utilities and tested components
4. Coverage thresholds are configured in vite.config.ts
5. All tests pass
</verification>

<success_criteria>
- All 3 utility functions have comprehensive tests
- 3 component tests demonstrate browser-mode testing pattern
- Coverage thresholds configured (starting point toward 80% goal)
- Both Vitest projects (client browser, server node) verified working
</success_criteria>

<output>
After completion, create `.planning/phases/09-ci-pipeline/09-02-SUMMARY.md`
</output>