Function createProcessEventHandler

lib/internal/test_runner/harness.js:118–167

(eventName, rootTest)

}

function createProcessEventHandler(eventName, rootTest) {
  return (err) => {
    if (rootTest.harness.bootstrapPromise) {
      // Something went wrong during the asynchronous portion of bootstrapping
      // the test runner. Since the test runner is not setup properly, we can't
      // do anything but throw the error.
      throw err;
    }

    const test = testResources.get(executionAsyncId());

    // Check if this error is coming from a reporter. If it is, throw it.
    if (test === reporterScope) {
      throw err;
    }

    // Check if this error is coming from a test or test hook. If it is, fail the test.
    if (!test || test.finished || test.hookType) {
      // If the test is already finished or the resource that created the error
      // is not mapped to a Test, report this as a top level diagnostic.
      let msg;

      if (test) {
        const name = test.hookType ? `Test hook "${test.hookType}"` : `Test "${test.name}"`;
        let locInfo = '';
        if (test.loc) {
          const relPath = relative(rootTest.config.cwd, test.loc.file);
          locInfo = ` at ${relPath}:${test.loc.line}:${test.loc.column}`;
        }

        msg = `Error: ${name}${locInfo} generated asynchronous ` +
          'activity after the test ended. This activity created the error ' +
          `"${err}" and would have caused the test to fail, but instead ` +
          `triggered an ${eventName} event.`;
      } else {
        msg = 'Error: A resource generated asynchronous activity after ' +
          `the test ended. This activity created the error "${err}" which ` +
          `triggered an ${eventName} event, caught by the test runner.`;
      }

      rootTest.diagnostic(msg);
      rootTest.harness.success = false;
      process.exitCode = kGenericUserError;
      return;
    }

    test.fail(new ERR_TEST_FAILURE(err, eventName));
    test.abortController.abort();
  };
}

function configureCoverage(rootTest, globalOptions) {
  if (!globalOptions.coverage) {