org.junit.internal.TextListener#org.junit.internal.RealSystem源码实例Demo

public static void run(final Class... suites) {

    boolean underTC = System.getenv(TEAMCITY_DETECT_VAR_NAME) != null;

    // prepare junit
    JUnitSystem system = new RealSystem();
    JUnitCore core = new JUnitCore();
    RunListener listener = underTC ? new TeamCityListener() : new TextListener(system);
    core.addListener(listener);

    int success = 0,
        failures = 0,
        ignores = 0;

    // run tests
    for (Class suite : suites) {
      sayNothing();
      String suiteName = suite.getSimpleName();
      if (suiteName.endsWith("Tests")) suiteName = suiteName.substring(0, suiteName.length()-"Tests".length());
      if (suiteName.endsWith("Integration")) suiteName = suiteName.substring(0, suiteName.length()-"Integration".length());
      if (suiteParameter != null) suiteName = suiteName + '[' + suiteParameter + ']';

      if (underTC) say("##teamcity[testSuiteStarted name='%s']", suiteName);

      Result result = core.run(suite);

      success += result.getRunCount() - (result.getFailureCount() + result.getIgnoreCount());
      failures += result.getFailureCount();
      ignores += result.getIgnoreCount();

      if (underTC) say("##teamcity[testSuiteFinished name='%s']", suiteName);
      sayNothing();
    }
  }
 

/**
 * Test runner entry point
 * @param args list of test classes to run
 * @throws ClassNotFoundException can't load the specified classes
 */
@SuppressWarnings("unchecked")
public static void main(final String[] args) throws ClassNotFoundException {
  final JUnitCore jUnitCore = new JUnitCore();
  if (CAPTURE_OUTPUT) {
    jUnitCore.addListener(new OutputListener());
  }
  jUnitCore.addListener(new TextListener(new RealSystem()));
  final TimingListener timing;
  if (COLLECT_TIMINGS) {
    timing = new TimingListener();
    jUnitCore.addListener(timing);
  } else {
    timing = null;
  }
  if (PRINT_FAILURES) {
    jUnitCore.addListener(new FailureListener());
  }
  if (PRINT_NAMES) {
    jUnitCore.addListener(new NameListener());
  }
  jUnitCore.addListener(new NewLineListener());
  final List<Result> results = new ArrayList<>();
  if (args.length > 0) {
    for (final String arg : args) {
      final Class<?> klass = ClassLoader.getSystemClassLoader().loadClass(arg);
      results.add(jUnitCore.run(klass));
    }
  } else {
    final Class<?>[] classes = getClasses();
    results.add(jUnitCore.run(classes));
  }
  if (timing != null) {
    final Map<String, Long> timings = timing.getTimings(LONG_TEST_THRESHOLD);
    if (timings.size() > 1) {
      System.out.println();
      System.out.println("Long tests");
      for (Map.Entry<String, Long> entry : timings.entrySet()) {
        System.out.println(formatTimeRow(entry.getKey(), entry.getValue(), TIMING_WIDTH));
      }
    }
  }

  for (Result result : results) {
    if (!result.wasSuccessful()) {
      System.exit(1);
    }
  }
}