[Copilot]

The Build & Publish GitHub Release workflow was failing before packaging because npm test intermittently timed out in tests/testRunner.test.ts. The timeout came from a unit test invoking a real npx vitest process in a temporary workspace.

• Root cause addressed

  • Replaced process-spawning behavior in the vitest-detection unit test with a deterministic mock of TestRunner.executeCommand.
  • Kept the test focused on command selection logic rather than external tool execution timing.

• Test behavior change

  • The test now verifies the exact targeted command generated for vitest:
    • npx vitest run "tests/sample.test.ts"
  • Asserted result shape remains Targeted Tests with PASS status from the mock.

• Scope

  • Single-file change: tests/testRunner.test.ts
  • No production/runtime logic changes.

const executeCommandSpy = vi.spyOn(runner as never, 'executeCommand').mockResolvedValue({
  name: 'Targeted Tests',
  status: 'PASS',
  message: 'Completed successfully without errors.'
});

await runner.runTargetedTests(tempDir, [path.join(tempDir, 'tests/sample.test.ts')]);

expect(executeCommandSpy).toHaveBeenCalledWith(
  'npx vitest run "tests/sample.test.ts"',
  tempDir,
  'Targeted Tests'
);