boolean errorNotThrown = false;
    try {
      SerializableTester.reserializeAndAssert(orig);
      errorNotThrown = true;
    } catch (AssertionFailedError error) {
      // expected
      assertContains("must be Object#equals to", error.getMessage());
    }
    assertFalse(errorNotThrown);
  }

  public void testClassWhichIsAlwaysEqualButHasDifferentHashcodes() {

    boolean errorNotThrown = false;
    try {
      SerializableTester.reserializeAndAssert(orig);
      errorNotThrown = true;
    } catch (AssertionFailedError error) {
      // expected
      assertContains("must be Object#equals to", error.getMessage());
    }
    assertFalse(errorNotThrown);
  }

  public void testClassWhichIsAlwaysEqualButHasDifferentHashcodes() {

  }

  public void testAssertContains() {
    List<?> list = asList("a", "b");
    assertContains(list, "a");
    assertContains(list, "b");

    assertThrows(AssertionFailedError.class, () -> assertContains(list, "c"));
  }

  public void testAssertContainsAllOf() {
    List<?> list = asList("a", "a", "b", "c");
    assertContainsAllOf(list, "a");

  }

  public void testAssertContains() {
    List<?> list = asList("a", "b");
    assertContains(list, "a");
    assertContains(list, "b");

    assertThrows(AssertionFailedError.class, () -> assertContains(list, "c"));
  }

  public void testAssertContainsAllOf() {
    List<?> list = asList("a", "a", "b", "c");
    assertContainsAllOf(list, "a");

  }

  public static void assertContentsAnyOrder(Iterable<?> actual, Object... expected) {
    assertEqualIgnoringOrder(asList(expected), actual);
  }

  public static void assertContains(Iterable<?> actual, Object expected) {
    boolean contained = false;
    if (actual instanceof Collection) {
      contained = ((Collection<?>) actual).contains(expected);
    } else {

  }

  public static void assertContentsAnyOrder(Iterable<?> actual, Object... expected) {
    assertEqualIgnoringOrder(asList(expected), actual);
  }

  public static void assertContains(Iterable<?> actual, Object expected) {
    boolean contained = false;
    if (actual instanceof Collection) {
      contained = ((Collection<?>) actual).contains(expected);
    } else {

        assertEquals(2, StringUtils.countMatches(result.output, "Failed to stop service 'testFilesCleanupBuildService'"))
        result.output.assertContains("failed-report-with-leftover/build/tmp/teŝt files/leftover")
        result.output.assertContains("failed-test-with-leftover/build/tmp/teŝt files/leftover")

        assertArchivedFilesSeen(
            "report-failed-test-with-leftover-test.zip",