feat: support parallel tests #287
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WalkthroughThis update modifies the continuous integration configuration and test execution logic to enable parallelized testing. The CI workflow now uses a new testing action with a parallelization parameter, and a new dependency is added to support this functionality. Additionally, the test command is updated to split test files based on the current CI job index, and a new test case has been introduced to verify the correct distribution of tests. Changes
Sequence Diagram(s)sequenceDiagram
participant CI as CI Workflow
participant Test as Test Command
participant CP as ciParallelVars
participant TR as Test Runner
CI->>Test: Trigger test job with CI_NODE_INDEX & CI_NODE_TOTAL
Test->>CP: Retrieve parallel variables (index, total)
CP-->>Test: Return parallel execution details
Test->>Test: Slice test files based on CI job index
Test->>TR: Execute selected test files
TR-->>Test: Return test results
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Actionable comments posted: 1
🧹 Nitpick comments (1)
src/commands/test.ts (1)
9-10: Consider adding type definitions.The ts-expect-error comment suggests missing types. Consider creating and contributing type definitions for ci-parallel-vars.
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.github/workflows/nodejs.yml(1 hunks)package.json(1 hunks)src/commands/test.ts(2 hunks)test/commands/test.test.ts(1 hunks)
🔇 Additional comments (4)
package.json (1)
26-26: LGTM! Good choice of dependency.The ci-parallel-vars package is a reliable choice for managing test parallelization in CI environments.
.github/workflows/nodejs.yml (1)
12-12: LGTM! Good parallel job configuration.The changes effectively enable parallel testing:
- Using node-test-parallel.yml action
- Setting 4 parallel jobs is a good balance between speed and resource usage
Also applies to: 16-16
src/commands/test.ts (1)
171-171: LGTM! Variable declaration change.Changing from const to let is necessary for the parallel execution logic.
test/commands/test.test.ts (1)
23-39: LGTM! Comprehensive test coverage.The test case effectively verifies parallel execution:
- Tests environment variable handling
- Validates file splitting logic
- Checks execution output and success
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Actionable comments posted: 1
🧹 Nitpick comments (1)
.github/workflows/nodejs.yml (1)
16-17: Consider removing redundant action_ref parameter.The
action_refparameter appears redundant since the action is already referenced with@test-parallel. This could lead to maintenance issues if the values get out of sync.uses: node-modules/github-actions/.github/workflows/node-test-parallel.yml@test-parallel with: os: 'ubuntu-latest, macos-latest, windows-latest' version: '18.19.0, 18, 20, 22, 23' parallel: 4 - action_ref: 'test-parallel'
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #287 +/- ##
==========================================
+ Coverage 95.79% 95.85% +0.05%
==========================================
Files 22 22
Lines 1070 1085 +15
Branches 170 172 +2
==========================================
+ Hits 1025 1040 +15
Misses 45 45 ☔ View full report in Codecov by Sentry. |
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Actionable comments posted: 0
🧹 Nitpick comments (2)
test/fixtures/example-ts-cluster/test/index.test.ts (2)
7-16: Consider the impact of debug logging on parallel test performance.While debug logging can be helpful, it might generate excessive output when running tests in parallel. Consider making it conditional based on a debug flag or environment variable.
- app.debug(); + if (process.env.DEBUG) { + app.debug(); + }Review the necessity of the fixed delay.
The 1-second delay after app.ready() seems arbitrary and could unnecessarily slow down parallel test execution. Consider:
- Using app events or health checks instead of a fixed delay
- Making the delay configurable
- Documenting why this specific delay is needed
Could you explain the rationale behind the 1-second delay? This might help identify a more optimal solution.
20-22: Consider conditional logging for parallel test execution.While logging the request URL is helpful for debugging, it might generate excessive output when running tests in parallel. Consider making it conditional:
- console.log('request %s', url); + if (process.env.DEBUG) { + console.log('request %s', url); + }
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.github/workflows/nodejs.yml(1 hunks)test/fixtures/example-ts-cluster/test/index.test.ts(1 hunks)
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- .github/workflows/nodejs.yml
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🔇 Additional comments (2)
test/fixtures/example-ts-cluster/test/index.test.ts (2)
1-1: LGTM: Appropriate use of built-in Node.js scheduler.The scheduler import from node:timers/promises is correctly used for implementing the wait functionality.
5-5: LGTM: Improved test identification for parallel execution.The more explicit test path in the describe block title helps with test identification when running tests in parallel.
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test/ts.test.ts(1 hunks)
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[skip ci] ## [7.2.0](v7.1.0...v7.2.0) (2025-02-13) ### Features * support parallel tests ([#287](#287)) ([b3f2b6c](b3f2b6c))
closes #286
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