Method onResult

packages/jest-core/src/TestScheduler.ts:139–183

(test: Test, testResult: TestResult)

    const runInBand = shouldRunInBand(tests, timings, this._globalConfig);

    const onResult = async (test: Test, testResult: TestResult) => {
      if (watcher.isInterrupted()) {
        return;
      }

      if (testResult.testResults.length === 0) {
        const message = 'Your test suite must contain at least one test.';

        return onFailure(test, {
          message,
          stack: new Error(message).stack,
        });
      }

      // Throws when the context is leaked after executing a test.
      if (testResult.leaks) {
        const message =
          `${chalk.red.bold(
            'EXPERIMENTAL FEATURE!\n',
          )}Your test suite is leaking memory. Please ensure all references are cleaned.\n` +
          '\n' +
          'There is a number of things that can leak memory:\n' +
          '  - Async operations that have not finished (e.g. fs.readFile).\n' +
          '  - Timers not properly mocked (e.g. setInterval, setTimeout).\n' +
          '  - Keeping references to the global scope.';

        return onFailure(test, {
          message,
          stack: new Error(message).stack,
        });
      }

      addResult(aggregatedResults, testResult);
      await this._dispatcher.onTestFileResult(
        test,
        testResult,
        aggregatedResults,
      );
      return this._bailIfNeeded(
        testContexts,
        aggregatedResults,
        watcher,
        tests,
      );
    };

    const onFailure = async (test: Test, error: SerializableError) => {
      if (watcher.isInterrupted()) {