@Test
  public void shouldGetEmptyHolderWhenIsNotSuccesful() {
    DateRange dateRange = new DateRange(datefrom, dateTo);

    when(changeLog.isSuccess()).thenReturn(Boolean.FALSE);
    GenericScmAdapter genericScmAdapter =
        new GenericScmAdapter(scmFacade, config, fileExclusions, moduleFileSystem);
    ChangeLogHandler changeLogHandler = genericScmAdapter.getChangeLog(dateRange);
    assertThat(changeLogHandler.getChangeLogs()).isEmpty();
  }
 @Test
 public void shouldGetEmptyHolderWhenExceptionIsThrown() throws ScmException {
   DateRange dateRange = new DateRange(datefrom, dateTo);
   when(scmFacade.getChangeLog(projectBaseDir, datefrom.toDate(), dateTo.toDate()))
       .thenThrow(ScmException.class);
   GenericScmAdapter genericScmAdapter =
       new GenericScmAdapter(scmFacade, config, fileExclusions, moduleFileSystem);
   ChangeLogHandler changeLogHandler = genericScmAdapter.getChangeLog(dateRange);
   assertThat(changeLogHandler.getChangeLogs()).isEmpty();
 }
  @Test
  public void shouldGetChangeLog() {
    DateTime date1 = new DateTime();
    DateTime date2 = new DateTime();
    List<ChangeFile> files = createChangeFilesList();
    changeSets.add(new ChangeSet(date2.toDate(), null, "user2", files));
    changeSets.add(new ChangeSet(date1.toDate(), null, "user1", files));

    when(changeLog.isSuccess()).thenReturn(Boolean.TRUE);
    DateRange dateRange = new DateRange(datefrom, dateTo);

    GenericScmAdapter genericScmAdapter =
        new GenericScmAdapter(scmFacade, config, fileExclusions, moduleFileSystem);
    Map<String, Integer> activity = createActivityMap();
    ChangeLogInfo changeLogInfo1 = new ChangeLogInfo("user1", date1.toDate(), activity);
    ChangeLogInfo changeLogInfo2 = new ChangeLogInfo("user2", date2.toDate(), activity);

    ChangeLogHandler result = genericScmAdapter.getChangeLog(dateRange);

    assertThat(result.getChangeLogs().get(0).getAuthor()).isEqualTo(changeLogInfo2.getAuthor());
    assertThat(result.getChangeLogs().get(0).getCommitDate())
        .isEqualTo(changeLogInfo2.getCommitDate());
    assertThat(result.getChangeLogs().get(0).getActivity()).hasSize(3);
    assertThat(result.getChangeLogs().get(0).getActivity().get(ScmStatsConstants.ACTIVITY_ADD))
        .isEqualTo(1);
    assertThat(result.getChangeLogs().get(0).getActivity().get(ScmStatsConstants.ACTIVITY_MODIFY))
        .isEqualTo(1);
    assertThat(result.getChangeLogs().get(0).getActivity().get(ScmStatsConstants.ACTIVITY_DELETE))
        .isEqualTo(2);

    assertThat(result.getChangeLogs().get(1).getAuthor()).isEqualTo(changeLogInfo1.getAuthor());
    assertThat(result.getChangeLogs().get(1).getCommitDate())
        .isEqualTo(changeLogInfo1.getCommitDate());
    assertThat(result.getChangeLogs().get(1).getActivity()).hasSize(3);
    assertThat(result.getChangeLogs().get(1).getActivity().get(ScmStatsConstants.ACTIVITY_ADD))
        .isEqualTo(1);
    assertThat(result.getChangeLogs().get(1).getActivity().get(ScmStatsConstants.ACTIVITY_MODIFY))
        .isEqualTo(1);
    assertThat(result.getChangeLogs().get(1).getActivity().get(ScmStatsConstants.ACTIVITY_DELETE))
        .isEqualTo(2);
  }