Add vitest and unit tests for existing functionality #123
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Pull Request Overview
This PR adds comprehensive unit test coverage to the Lightning Node Connect (LNC) web library using Vitest as the testing framework. The purpose is to establish test coverage for existing functionality to prevent breaking changes during future improvements.
- Replaces Jest/Mocha with Vitest for faster test execution
- Adds extensive test coverage across all core modules with 129 passing tests
- Integrates GitHub Actions workflow for automated CI testing
Reviewed Changes
Copilot reviewed 19 out of 23 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| vitest.config.ts | Configuration for Vitest test runner with coverage settings |
| package.json | Updates test scripts and dependencies to use Vitest |
| test/setup.ts | Global test setup with mocks for browser APIs and WebAssembly |
| test/mocks/* | Mock implementations for localStorage, WebAssembly, and test utilities |
| test/utils/* | Helper utilities and factories for test data and mock setup |
| lib/**/*.test.ts | Comprehensive unit tests for all core modules |
| lib/lnc.ts | Minor refactoring to use typed global references |
| lib/util/log.ts | Added getter for log level property |
| tslint.json | Removed unused variable rule |
| .prettierignore | Added coverage directory exclusion |
| .github/workflows/test.yml | GitHub Actions workflow for running tests in CI |
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| const mockLnc = { | ||
| request: vi.fn(), | ||
| subscribe: vi.fn() | ||
| } as unknown as Mocked<LNC>; |
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do we need the as unknown as Mocked<LNC>? Could we instead have it be a partial?
| }); | ||
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| describe('Method name capitalization', () => { | ||
| it('should capitalize method names correctly', () => { |
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Seems like a bit of an odd test -- more of a linting job imo
| it('should handle empty config object gracefully', () => { | ||
| const lnc = new LNC({}); | ||
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| expect(lnc._wasmClientCode).toBe(DEFAULT_CONFIG.wasmClientCode); |
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Interesting -- didn't think we could access private members in a test
| @@ -1 +1,7 @@ | |||
| declare var global: any; | |||
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| interface GoInstance { | |||
| run(...args: any[]): Promise<void>; | |||
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Can we really run the go instance with any[]? I
In preparation for some upcoming improvements to this library, I have added many unit tests to ensure there are no breaking changes to the existing functionality going forward. I chose to use the Vitest testing framework over Jest because it is substantially faster. I have also added a Github workflow job to run the tests in CI.
Steps to Test
yarnto update yournode_modulesyarn test:coverageto run the testsExample
$ yarn test:coverage yarn run v1.22.17 $ vitest run --coverage RUN v3.2.4 /Users/jamal/dev/lnc-web Coverage enabled with v8 ✓ lib/util/log.test.ts (20 tests) 6ms ✓ lib/api/createRpc.test.ts (9 tests) 4ms ✓ lib/util/credentialStore.test.ts (27 tests) 15ms ✓ lib/util/encryption.test.ts (19 tests) 17ms ✓ lib/index.test.ts (2 tests) 59ms ✓ lib/lnc.test.ts (52 tests) 98ms Test Files 6 passed (6) Tests 129 passed (129) Start at 08:02:38 Duration 468ms (transform 229ms, setup 122ms, collect 397ms, tests 198ms, environment 1ms, prepare 258ms) % Coverage report from v8 ---------------------|---------|----------|---------|---------|------------------- File | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s ---------------------|---------|----------|---------|---------|------------------- All files | 99.37 | 96.26 | 98.14 | 99.37 | lib | 98.74 | 94.91 | 95 | 98.74 | index.ts | 70 | 100 | 0 | 70 | 9-11 lnc.ts | 100 | 94.91 | 100 | 100 | 62,203 lib/api | 100 | 100 | 100 | 100 | createRpc.ts | 100 | 100 | 100 | 100 | lib/types | 0 | 0 | 0 | 0 | lnc.ts | 0 | 0 | 0 | 0 | lib/util | 100 | 97.01 | 100 | 100 | credentialStore.ts | 100 | 95.34 | 100 | 100 | 221,232 encryption.ts | 100 | 100 | 100 | 100 | log.ts | 100 | 100 | 100 | 100 | ---------------------|---------|----------|---------|---------|------------------- ✨ Done in 0.94s.