我正在尝试设置一些简单的 MVC 单元测试。我想要完成的是:
- 使用 Spring MockMVC 测试从我的控制器返回的 HTTP 状态和 HTTP 数据。
- 我的控制器具有对执行实际逻辑的外观的 Autowired 引用。
- 因此,我创建了一个测试类来测试一个控制器。
- 我想测试那个控制器的两个方法,所以我在我的测试类中创建了两个方法。
- 我已经模拟了我的外观并将其注入我的控制器中。
- 所以,我想用我正在测试的每个方法的返回来配置这个模拟。
我正在使用以下代码:
public class LoginTest {
MockMvc mockMvc;
@Mock
Cadastre facade;
@InjectMocks
Login controller;
@Before
public void setup() {
MockitoAnnotations.initMocks(this);
Mockito.when(facade.login(Mockito.any(String.class))).thenReturn(true);
Mockito.when(facade.getUser(Mockito.any(String.class))).thenReturn(Mockito.any(UserData.class));
mockMvc = MockMvcBuilders.standaloneSetup(controller).setMessageConverters(new MappingJackson2HttpMessageConverter()).build();
}
@Test
public void thatLoginUsesStatusOK() throws Exception {
this.mockMvc.perform(MockMvcRequestBuilders.get(UserFixtures.loginUrl())).andExpect(MockMvcResultMatchers.status().isOk());
}
@Test
public void thatUserDataUsesStatusOK() throws Exception {
this.mockMvc.perform(MockMvcRequestBuilders.get(UserFixtures.getUserDataUrl())).andExpect(MockMvcResultMatchers.status().isOk());
}
}
如果我尝试执行这个 Test 类,它会失败并出现错误:
org.mockito.exceptions.misusing.InvalidUseOfMatchersException:
Invalid use of argument matchers!
1 matchers expected, 2 recorded:
-> at com.example.test.api.login.LoginTest.setup(LoginTest.java:38)
-> at com.example.test.api.login.LoginTest.setup(LoginTest.java:39)
This exception may occur if matchers are combined with raw values:
//incorrect:
someMethod(anyObject(), "raw String");
When using matchers, all arguments have to be provided by matchers.
For example:
//correct:
someMethod(anyObject(), eq("String by matcher"));
For more info see javadoc for Matchers class.
at com.example.test.api.login.LoginTest.setup(LoginTest.java:39)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
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.RunBefores.evaluate(RunBefores.java:24)
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.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:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
如果我将每个模拟的方法行(Mock.when 行)移动到它的 test() 方法中,并分别调用这个测试方法,它们就可以工作。但是如果我尝试执行整个类,那么只有一个 test() 方法起作用,另一个抛出以下异常(这似乎与我上面的原因相同):
org.mockito.exceptions.misusing.InvalidUseOfMatchersException:
Misplaced argument matcher detected here:
-> at com.example.test.api.login.LoginTest.thatLoginUsesStatusOK(LoginTest.java:45)
You cannot use argument matchers outside of verification or stubbing.
Examples of correct usage of argument matchers:
when(mock.get(anyInt())).thenReturn(null);
doThrow(new RuntimeException()).when(mock).someVoidMethod(anyObject());
verify(mock).someMethod(contains("foo"))
Also, this error might show up because you use argument matchers with methods that cannot be mocked.
Following methods *cannot* be stubbed/verified: final/private/equals()/hashCode().
at com.example.test.api.login.LoginTest.setup(LoginTest.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
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.RunBefores.evaluate(RunBefores.java:24)
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.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:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
所以,我相信原因是我可能不太了解如何使用 Mockito。你能指出我正确的方向吗?
非常感谢!