Running Integration Tests

Integration tests in VS Code are split into two categories:

1. Node.js integration tests - files ending in .integrationTest.ts under src/. These run in Electron via the same Mocha runner as unit tests.
2. Extension host tests - tests embedded in built-in extensions under extensions/ (API tests, Git tests, TypeScript tests, etc.). These launch a full VS Code instance with --extensionDevelopmentPath.

Scripts

• macOS / Linux: ./scripts/test-integration.sh [options]
• Windows: .\scripts\test-integration.bat [options]

When run without filters, both scripts execute all node.js integration tests followed by all extension host tests.

When run with --run or --runGlob (without --suite), only the node.js integration tests are run and the filter is applied. Extension host tests are skipped since these filters are node.js-specific.

When run with --grep alone (no --run, --runGlob, or --suite), all tests are run -- both node.js integration tests and all extension host suites -- with the grep pattern forwarded to every test runner.

When run with --suite, only the matching extension host test suites are run. Node.js integration tests are skipped. Combine --suite with --grep to filter individual tests within the selected suites.