我在我的服務下面的方法來嘲笑AWS SQS的Java與失敗的Mockito
@Override
public Message recieveMessage(String queueUrl) {
Objects.requireNonNull(queueUrl);
ReceiveMessageRequest request = new ReceiveMessageRequest().withQueueUrl(queueUrl).withMaxNumberOfMessages(1);
ReceiveMessageResult receiveMessageResult = this.sqsClient.receiveMessage(request);
// As per the spec, we need to return only one message.
return receiveMessageResult.getMessages().get(0);
}
@Override
public int getMessageCount(String queueUrl) {
GetQueueAttributesResult queueAttributes = sqsClient.getQueueAttributes(queueUrl, Arrays.asList("ApproximateNumberOfMessages"));
return Integer.valueOf(queueAttributes.getAttributes().get("ApproximateNumberOfMessages"));
}
和下面是我的測試情況下使用這些的Mockito方法與NPE失敗。
@Test
public void testRecieveMessage() {
Message message = new Message();
message.setBody("Message Body");
List<Message> messages = new ArrayList<>();
messages.add(message);
ReceiveMessageResult result = new ReceiveMessageResult();
result.setMessages(messages);
when(mock(ReceiveMessageResult.class).getMessages()).thenReturn(messages);
when(mock(List.class).get(0)).thenReturn(message);
when(this.amazonSQSClient.receiveMessage(mock(ReceiveMessageRequest.class))).thenReturn(result);
this.amazonQueueService.recieveMessage(anyString());
verify(this.amazonSQSClient, times(1)).receiveMessage(mock(ReceiveMessageRequest.class));
//Assert.assertNotNull(msg);
}
在com.example.queue.service.impl.AmazonSQSService.recieveMessage(AmazonSQSService.java:46) 在com.example.AmazonSQSServiceTest.testRecieveMessage顯示java.lang.NullPointerException (AmazonSQSServiceTest.java:77) 在sun.reflect.NativeMethodAccessorImpl.invoke0(本機方法) 在sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 在sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 在java.lang中.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod $ 1.runReflective呼叫(FrameworkMethod.java:50) 在org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) 在org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) 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。 runners.ParentRunner.runLeaf(ParentRunner.java:325) 在org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) 在org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) 在org.junit.runners.ParentRunner $ 3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner $ 1。 (org.junit.runners.java:58) at org.junit(ParentRunner.java:58) .runners.ParentRunner $ 2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.mockito.internal.runners.JUnit45AndHigherRunnerImpl.run(JUnit45AndHigherRunnerImpl.java: 37) 在org.mockito.runners.MockitoJUnitRunner.run(MockitoJUnitRunner.java:62) 在org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) 在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:678) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run (RemoteTestRunner.java:382) 在org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
@Test
public void testMessageCount() {
GetQueueAttributesResult result = new GetQueueAttributesResult();
result.addAttributesEntry("ApproximateNumberOfMessages", "10");
List<String> attrs = Arrays.asList("ApproximateNumberOfMessages");
when(this.amazonSQSClient.getQueueAttributes(anyString(), eq(attrs))).thenReturn(result);
this.amazonQueueService.getMessageCount(anyString());
}
org.mockito.exceptions.misusing.InvalidUseOfMatchersException: 無效使用參數匹配器! 2匹配器預期的,1記載: - 在com.example.AmazonSQSServiceTest.testMessageCount>(AmazonSQSServiceTest.java:96)
如果匹配器與原始值相結合可能會出現此例外: //不正確的: 的someMethod( anyObject(),「raw String」); 使用匹配器時,所有參數必須由匹配器提供。 例如: //正確: someMethod(anyObject(),eq(「String by matcher」));
欲瞭解更多信息,請參閱Matcher類的javadoc。
at com.example.queue.service.impl.AmazonSQSService.getMessageCount(AmazonSQSService.java:58)
at com.example.AmazonSQSServiceTest.testMessageCount(AmazonSQSServiceTest.java:96)
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:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
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.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
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:86)
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:678)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
我錯過了什麼嗎?