Add test suite for background scripts#10
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Pull request overview
Adds a Vitest-based test harness for the extension background layer, focusing on validating proxy/PAC behavior and state-store updates under a mocked Chrome runtime.
Changes:
- Introduces Vitest configuration and a minimal
chromeglobal mock for background-script tests. - Adds unit tests for
StateStorestate merging, subscriptions, andStatusUpdatenormalization behavior. - Adds comprehensive tests for
ProxyManagerapply/clear behavior, PAC script generation, and CIDR/subnet routing handling.
Reviewed changes
Copilot reviewed 5 out of 6 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| extension/vitest.config.ts | Configures Vitest to run src/**/*.test.ts with a shared setup file. |
| extension/src/test/chrome-mock.ts | Provides a minimal globalThis.chrome mock for background-script tests. |
| extension/src/background/state-store.test.ts | Tests StateStore initial state, updates, subscriptions, and applyStatusUpdate normalization. |
| extension/src/background/proxy-manager.test.ts | Tests proxy enable/disable flows plus PAC generation and routing semantics (incl. CIDR/subnets). |
| extension/package.json | Adds vitest and test scripts to the extension package. |
| extension/package-lock.json | Locks Vitest/Vite dependency tree for deterministic installs. |
Files not reviewed (1)
- extension/package-lock.json: Language not supported
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dantraynor
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Mar 14, 2026
* Add test suite for background scripts * Reduce strictness for matching * Node compatibility
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Adds Vitest tests for ProxyManager and StateStore covering proxy routing, PAC script generation, CIDR parsing, and state management.