Question

问题：我有服务方法，以相反的顺序返回对象列表。它使用MongoTemplate，Query从MongoDB获取对象列表，并使用ListIterator来反转列表。

现在，我必须为上面的内容编写JUnit测试用例。

我现在的代码，我正在模仿mongotemplate

    MongoTemplate mongoTemplate = Mockito.mock(MongoTemplate.class);
    Query query = Mockito.mock(Query.class);
    CRDetails crDetails = new CRDetails();
    CertificateGuidelines certG1 = new CertificateGuidelines("certG1", Constants.CERTIFICATION_TEAM, Constants.DOC_DEVELOPER_STATUS, 1);
    CertificateGuidelines certG2 = new CertificateGuidelines("certG2", Constants.DOCDEVELOPER, Constants.CERT_TEAM_STATUS, 2);
    CertificateGuidelines certG3 = new CertificateGuidelines("certG3", Constants.CERTIFICATION_TEAM, Constants.DOC_DEVELOPER_STATUS, 3);
    List<CertificateGuidelines> newHistoryList = new ArrayList<CertificateGuidelines>();
    newHistoryList.add(certG1);
    newHistoryList.add(certG2);
    newHistoryList.add(certG3);
    Mockito.when(mongoTemplate.findOne((org.springframework.data.mongodb.core.query.Query) Matchers.any(Query.class), Matchers.any(Class.class))).thenReturn(crDetails);

    CRService service = new CRService();
    service.setCertMongoTemplate(mongoTemplate);

assertEquals(historyList, newHistoryList);

我的服务方式：

public List<CertificateGuidelines> getHistoryForCertGuidelines(String crNum) {
Query query = new Query(Criteria.where("cr").is(crNum));
CRDetails details = certMongoTemplate.findOne(query, CRDetails.class,
        Constants.COLLECTION_NAME);
logger.debug("in history");

if (details != null) {
    logger.debug("Certification Guidelines has " + details.getCertGuidelinesList().size() + "previous updates");
}
List<CertificateGuidelines> historyList = new ArrayList<CertificateGuidelines>();

// Add objects to list.

// Generate an iterator. Start just after the last CG object.
ListIterator<CertificateGuidelines> listItr = details.getCertGuidelinesList().listIterator(
    details.getCertGuidelinesList().size());

// Iterate in reverse.
while (listItr.hasPrevious()) {
    historyList.add((CertificateGuidelines) listItr.previous());
}
return historyList;
    }

我知道在编写测试用例时我犯了一些错误。不清楚如何处理。请指南。错误跟踪

java.lang.AssertionError: expected:<historyList> but was:<[com.cerner.docworks.domain.CertificateGuidelines@13805618, com.cerner.docworks.domain.CertificateGuidelines@56ef9176, com.cerner.docworks.domain.CertificateGuidelines@4566e5bd]>
    at org.junit.Assert.fail(Assert.java:88)
    at org.junit.Assert.failNotEquals(Assert.java:743)
    at org.junit.Assert.assertEquals(Assert.java:118)
    at org.junit.Assert.assertEquals(Assert.java:144)
    at com.cerner.docworks.service.test.CRServiceTest.testServiceHistoryDB(CRServiceTest.java:113)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.mockito.internal.runners.JUnit45AndHigherRunnerImpl.run(JUnit45AndHigherRunnerImpl.java:37)
    at org.mockito.runners.MockitoJUnitRunner.run(MockitoJUnitRunner.java:62)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

提前致谢

Answer 1

我相信您正在测试两个列表的相等性，当您真正想要做的是检查列表是否包含相同的元素时。

最简单的方法是使用Hamcrest，它具有额外的优势，即在发生故障时它会显示更好的信息。

Assert.assertThat(historyList,IsIterableContainingOrder.contains(newHistoryList.toArray()));

我必须为使用ListIterator并返回列表的服务层编写JUnit测试用例

1 个答案: