Develop Add automated testing setup with GitHub Actions, Jest, and Docker support #4
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…ompatibility tests
…ng in useAsyncMemo and useAsyncEffekt
feat: add test suite with GitHub Actions workflow and React version compatibility tests
WalkthroughThis update introduces a comprehensive automated testing setup for a React-based project. It adds a GitHub Actions workflow for matrix testing across multiple React and Node.js versions, Docker-based test environments, detailed Jest configuration, utility scripts, and extensive test suites for custom hooks. Configuration files and test utilities are also included. Changes
Sequence Diagram(s)sequenceDiagram
participant GitHub Actions
participant Docker
participant Test Runner (Jest)
participant Codecov
GitHub Actions->>GitHub Actions: Trigger on push/PR to main/develop
GitHub Actions->>GitHub Actions: Start matrix (React x Node.js versions)
loop For each React/Node version
GitHub Actions->>Docker: Build test image (Dockerfile.test)
Docker->>Test Runner (Jest): Run tests with coverage
Test Runner (Jest)->>Codecov: Upload coverage report
end
GitHub Actions->>GitHub Actions: Run lint job
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Actionable comments posted: 1
🧹 Nitpick comments (1)
.github/workflows/test.yml (1)
34-41: Consider the implications of using--forceflag in dependency installation.The conditional installation logic correctly handles different testing library requirements across React versions. However, the
--forceflag may suppress important dependency conflict warnings.Consider adding a comment explaining why
--forceis necessary:- name: Install React and testing libraries for React ${{ matrix.react-version }} run: | + # Using --force to resolve version conflicts in matrix testing scenarios if [[ "${{ matrix.react-version }}" == "16.8.0" || "${{ matrix.react-version }}" == "17.0.0" ]]; then
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Review profile: CHILL
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⛔ Files ignored due to path filters (1)
package-lock.jsonis excluded by!**/package-lock.json
📒 Files selected for processing (10)
.coderabbit.yaml(1 hunks).github/workflows/test.yml(1 hunks)Dockerfile.test(1 hunks)package.json(2 hunks)run-matrix-tests.sh(1 hunks)src/__tests__/index.test.ts(1 hunks)src/__tests__/test-utils.ts(1 hunks)src/__tests__/useAsyncEffekt.test.ts(1 hunks)src/__tests__/useAsyncMemo.test.ts(1 hunks)src/setupTests.ts(1 hunks)
🧰 Additional context used
🧠 Learnings (8)
📓 Common learnings
Learnt from: davemecha
PR: davemecha/use-async-effekt#3
File: src/__tests__/test-utils.ts:6-8
Timestamp: 2025-06-29T11:06:37.008Z
Learning: In matrix testing scenarios where different versions of testing libraries are dynamically installed (like @testing-library/react-hooks vs @testing-library/react across React versions), using `any` types may be necessary due to unstable type dependencies, rather than importing specific types that may not be available in all test configurations.
src/__tests__/index.test.ts (1)
Learnt from: davemecha
PR: davemecha/use-async-effekt#3
File: src/__tests__/test-utils.ts:6-8
Timestamp: 2025-06-29T11:06:37.008Z
Learning: In matrix testing scenarios where different versions of testing libraries are dynamically installed (like @testing-library/react-hooks vs @testing-library/react across React versions), using `any` types may be necessary due to unstable type dependencies, rather than importing specific types that may not be available in all test configurations.
src/setupTests.ts (1)
Learnt from: davemecha
PR: davemecha/use-async-effekt#3
File: src/__tests__/test-utils.ts:6-8
Timestamp: 2025-06-29T11:06:37.008Z
Learning: In matrix testing scenarios where different versions of testing libraries are dynamically installed (like @testing-library/react-hooks vs @testing-library/react across React versions), using `any` types may be necessary due to unstable type dependencies, rather than importing specific types that may not be available in all test configurations.
src/__tests__/test-utils.ts (1)
Learnt from: davemecha
PR: davemecha/use-async-effekt#3
File: src/__tests__/test-utils.ts:6-8
Timestamp: 2025-06-29T11:06:37.008Z
Learning: In matrix testing scenarios where different versions of testing libraries are dynamically installed (like @testing-library/react-hooks vs @testing-library/react across React versions), using `any` types may be necessary due to unstable type dependencies, rather than importing specific types that may not be available in all test configurations.
package.json (1)
Learnt from: davemecha
PR: davemecha/use-async-effekt#3
File: src/__tests__/test-utils.ts:6-8
Timestamp: 2025-06-29T11:06:37.008Z
Learning: In matrix testing scenarios where different versions of testing libraries are dynamically installed (like @testing-library/react-hooks vs @testing-library/react across React versions), using `any` types may be necessary due to unstable type dependencies, rather than importing specific types that may not be available in all test configurations.
src/__tests__/useAsyncEffekt.test.ts (1)
Learnt from: davemecha
PR: davemecha/use-async-effekt#3
File: src/__tests__/test-utils.ts:6-8
Timestamp: 2025-06-29T11:06:37.008Z
Learning: In matrix testing scenarios where different versions of testing libraries are dynamically installed (like @testing-library/react-hooks vs @testing-library/react across React versions), using `any` types may be necessary due to unstable type dependencies, rather than importing specific types that may not be available in all test configurations.
run-matrix-tests.sh (1)
Learnt from: davemecha
PR: davemecha/use-async-effekt#3
File: src/__tests__/test-utils.ts:6-8
Timestamp: 2025-06-29T11:06:37.008Z
Learning: In matrix testing scenarios where different versions of testing libraries are dynamically installed (like @testing-library/react-hooks vs @testing-library/react across React versions), using `any` types may be necessary due to unstable type dependencies, rather than importing specific types that may not be available in all test configurations.
src/__tests__/useAsyncMemo.test.ts (1)
Learnt from: davemecha
PR: davemecha/use-async-effekt#3
File: src/__tests__/test-utils.ts:6-8
Timestamp: 2025-06-29T11:06:37.008Z
Learning: In matrix testing scenarios where different versions of testing libraries are dynamically installed (like @testing-library/react-hooks vs @testing-library/react across React versions), using `any` types may be necessary due to unstable type dependencies, rather than importing specific types that may not be available in all test configurations.
🧬 Code Graph Analysis (2)
src/__tests__/useAsyncEffekt.test.ts (1)
src/__tests__/test-utils.ts (2)
renderHook(35-35)act(35-35)
src/__tests__/useAsyncMemo.test.ts (1)
src/__tests__/test-utils.ts (3)
renderHook(35-35)waitFor(35-35)act(35-35)
🔇 Additional comments (20)
.coderabbit.yaml (1)
1-4: LGTM! Clean and focused configuration.The CodeRabbit configuration correctly specifies the base branches for automated reviews, aligning with the CI/CD workflows targeting
mainanddevelopbranches.src/__tests__/test-utils.ts (2)
4-8: Well-justified use ofanytypes for matrix testing.The
anytypes are appropriate here due to the matrix testing scenario where different versions of testing libraries are dynamically installed, as noted in the retrieved learnings. This prevents type conflicts across different React versions.
12-33: Excellent version-aware conditional logic.The semver-based conditional imports correctly handle the differences between React versions:
- React 18+: Uses
@testing-library/reactfor all utilities- React 16/17: Uses
@testing-library/react-hooksfor renderHook/act,@testing-library/reactfor waitForThe try-catch blocks provide good error handling and debugging information.
Dockerfile.test (2)
13-28: Conditional dependency installation logic is correct.The Dockerfile properly handles React version-specific testing library requirements:
- React 16.8.0/17.0.0: Installs
@testing-library/react-hooks@^8.0.1and@testing-library/react@^12.1.5- React 18+: Uses newer
@testing-library/react@^14.1.0without the hooks libraryThis aligns perfectly with the conditional logic in
test-utils.ts.
10-10: Good use ofnpm cifor reproducible builds.Using
npm ciensures clean, reproducible dependency installation in the Docker environment.src/__tests__/index.test.ts (1)
1-11: Essential smoke tests for module exports.These basic tests provide important verification that the main hooks are properly exported from the module. While simple, they catch potential export/import issues early in the test suite.
src/setupTests.ts (2)
3-15: Well-implemented console error mocking.The console.error mock correctly filters out specific React deprecation warnings while preserving all other error logging. This prevents test noise without hiding genuine errors.
17-19: Proper cleanup in afterAll.Good practice to restore the original console.error function after tests complete, ensuring no side effects between test runs.
run-matrix-tests.sh (1)
1-34: Well-structured matrix testing script with proper error handling.The script effectively handles multi-version testing with Docker. The error handling using
set -euo pipefailensures immediate failure on errors, and the explicit exclusion of React 19 with Node 16 aligns with compatibility requirements.Minor note: Line 34 appears to be missing the
~annotation marker, but this doesn't affect functionality.package.json (1)
65-94: Excellent Jest configuration with comprehensive coverage setup.The Jest configuration is well-structured with appropriate test environment settings, file patterns, and coverage collection rules. The 80% coverage threshold across all metrics provides a good balance between quality assurance and development velocity.
.github/workflows/test.yml (1)
45-52: Well-configured Codecov integration with version-specific tracking.The Codecov setup with version-specific flags enables tracking coverage across different React and Node combinations, providing valuable insights into test coverage consistency across the matrix.
src/__tests__/useAsyncEffekt.test.ts (4)
1-6: Excellent use of cross-version testing utilities.The import from
./test-utilsaligns with the retrieved learning about matrix testing scenarios, where different versions of testing libraries are dynamically installed. This approach ensures compatibility across React versions 16-19.
7-17: Proper test setup with Jest fake timers.The beforeEach/afterEach setup correctly manages Jest timers and mocks, ensuring clean test isolation. The use of
jest.useFakeTimers()is appropriate for testing async behavior with controlled timing.
160-209: Excellent test of concurrent effect handling withwaitForPrevious.This test effectively validates the complex scenario where effects need to wait for previous effects to complete. The use of promises and manual resolution provides precise control over the async flow, ensuring the
waitForPreviousfunctionality works correctly.
257-283: Comprehensive cancellation testing with proper timing control.The test correctly validates that effects can be cancelled when components unmount before completion. The use of
jest.advanceTimersByTime()provides precise control over async timing, ensuring the cancellation behavior is properly tested.src/__tests__/useAsyncMemo.test.ts (5)
1-4: Proper imports for comprehensive React hook testing.The imports correctly use the cross-version test utilities and include React for StrictMode testing. The import of
waitForfrom test-utils provides additional async testing capabilities beyond the useAsyncEffekt tests.
77-107: Excellent error handling validation with last successful value retention.This test effectively validates the important behavior of preserving the last successful value when subsequent computations fail. This is a critical feature for user experience in async memoization scenarios.
289-303: Good coverage of React StrictMode compatibility.The StrictMode test ensures the hook works correctly in development environments where effects may be invoked multiple times. The wrapper approach using
React.createElementis appropriate for testing library integration.
358-376: Comprehensive validation of isMounted callback functionality.This test effectively validates that the factory function receives a working
isMountedcallback that correctly reflects the component's mount state. This is crucial for preventing state updates after unmount.
556-583: Thorough testing of rapid dependency changes scenario.The test validates that the hook can handle very rapid dependency changes and eventually settles on the correct final value. This is important for real-world scenarios where user interactions might trigger rapid state changes.
Summary by CodeRabbit
New Features
Tests