Examples of org.junit.experimental.max.MaxCore

org.junit.experimental.max.MaxCore
A replacement for JUnitCore, which keeps track of runtime and failure history, and reorders tests to maximize the chances that a failing test occurs early in the test run. The rules for sorting are:
1. Never-run tests first, in arbitrary order
2. Group remaining tests by the date at which they most recently failed.
3. Sort groups such that the most recent failure date is first, and never-failing tests are at the end.
4. Within a group, run the fastest tests first.


    @Test
    public void rememberOldRuns() {
        fMax.run(TwoUnEqualTests.class);


        MaxCore reincarnation = MaxCore.storedLocally(fMaxFile);
        List<Failure> failures = reincarnation.run(TwoUnEqualTests.class)
                .getFailures();
        assertEquals("fast", failures.get(0).getDescription().getMethodName());
        assertEquals("slow", failures.get(1).getDescription().getMethodName());
    }

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  @Test
  public void showMaxCore() throws Exception {
    // Define a file to store tests run history
    File maxCoreFile = new File("junit-maxcore-history.max");
    // Load previous test runs informations
    MaxCore maxCoreTestPrevisousRun = MaxCore.storedLocally(maxCoreFile);
    // Display previous tests run informations
    System.out.println("**** PREVIOUS RUN INFOS ****");
    for (Map.Entry<String, Long> testData : maxCoreTestPrevisousRun.fHistory.fDurations.entrySet()) {
      System.out.printf("=> Test '%s' - Duration '%s' ms\n", testData.getKey(), testData.getValue());
    }
    // Run tests using the MaxCore in order to obtains tests run history
    // informations saved to the file
    System.out.println("**** NEW RUN ****");
    Result result = maxCoreTestPrevisousRun.run(TestProcessingBean.class);
    System.out.println("**** NEW RUN INFOS ****");
    System.out.printf("%s Test executed in %s ms\n", result.getRunCount(), result.getRunTime());
    System.out.printf("%s Test ignored\n", result.getIgnoreCount());
    System.out.printf("%s Test failed\n", result.getFailureCount());
    maxCoreTestPrevisousRun.fHistory.save();

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  @Test
  public void rememberOldRuns() {
    fMax.run(TwoUnEqualTests.class);


    MaxCore reincarnation= MaxCore.storedLocally(fMaxFile);
    List<Failure> failures= reincarnation.run(TwoUnEqualTests.class)
        .getFailures();
    assertEquals("fast", failures.get(0).getDescription().getMethodName());
    assertEquals("slow", failures.get(1).getDescription().getMethodName());
  }

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