@Deployment(resources = {"org/camunda/bpm/engine/test/api/cmmn/oneTaskCase.cmmn"})
  public void testQueryByCaseDefinitionName() {
    // given
    CaseDefinition caseDefinition = repositoryService.createCaseDefinitionQuery().singleResult();

    String caseDefinitionName = caseDefinition.getName();
    String caseDefinitionId = caseDefinition.getId();

    String caseInstanceId = caseService.withCaseDefinitionByKey("oneTaskCase").create().getId();

    String humanTaskId =
        caseService.createCaseExecutionQuery().activityId("PI_HumanTask_1").singleResult().getId();

    // then
    HistoricTaskInstanceQuery query = historyService.createHistoricTaskInstanceQuery();

    query.caseDefinitionName(caseDefinitionName);

    assertEquals(1, query.count());
    assertEquals(1, query.list().size());
    assertNotNull(query.singleResult());

    HistoricTaskInstance task = query.singleResult();
    assertNotNull(task);

    assertEquals(caseDefinitionId, task.getCaseDefinitionId());
    assertEquals(caseInstanceId, task.getCaseInstanceId());
    assertEquals(humanTaskId, task.getCaseExecutionId());
  }
  @Deployment(resources = {"org/camunda/bpm/engine/test/repository/one.cmmn"})
  public void testGetCaseDefinition() {
    CaseDefinitionQuery query = repositoryService.createCaseDefinitionQuery();

    CaseDefinition caseDefinition = query.singleResult();
    String caseDefinitionId = caseDefinition.getId();

    CaseDefinition definition = repositoryService.getCaseDefinition(caseDefinitionId);

    assertNotNull(definition);
    assertEquals(caseDefinitionId, definition.getId());
  }
  @Deployment(resources = {"org/camunda/bpm/engine/test/repository/one.cmmn"})
  public void testGetCaseModel() throws Exception {
    CaseDefinitionQuery query = repositoryService.createCaseDefinitionQuery();

    CaseDefinition caseDefinition = query.singleResult();
    String caseDefinitionId = caseDefinition.getId();

    InputStream caseModel = repositoryService.getCaseModel(caseDefinitionId);

    assertNotNull(caseModel);

    byte[] readInputStream = IoUtil.readInputStream(caseModel, "caseModel");
    String model = new String(readInputStream, "UTF-8");

    assertTrue(model.contains("<case id=\"one\" name=\"One\">"));

    IoUtil.closeSilently(caseModel);
  }