Question

Mockito确实会因以下错误而死。

@Query("SELECT e FROM Employee e WHERE e.status='A' AND LOWER(e.department.useCode)=LOWER(:flag) AND e.department.status='A' ")
Page<Employee> findAllDetails(@Param("flag") String flag, Pageable pageable);

错误：

org.mockito.exceptions.misusing.InvalidUseOfMatchersException: 
Invalid use of argument matchers!
2 matchers expected, 1 recorded:
-> at com.xxx.service.EmployeeServiceTest.test_findEmployeesPageable(EmployeeServiceTest.java:146)

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.xxx.service.EmployeeServiceTest.test_findEmployeesPageable(EmployeeServiceTest.java:146)
    at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:68)
    at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:89)
    at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:97)
    at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:87)
    at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:50)
    at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
    at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
    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:538)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206)

代码：

@Override
public Page<EmployeeDto> findEmployeePageable(Pageable pageableReq, String sortParam, String direction, String useCd) {
    Pageable pageable = Utils.sort(pageableReq, sortParam, direction);

    Page<Employee> response = null;
    if(pageable.getSort().isSorted()) {
        response = employeeRepository.findAllDetails(code, pageable);
    }else {
        response = employeeRepository.findAllDetailsNewDetails(useCd, pageable);
    }
    List<EmployeeDto> employeeResponse = getResponses(response.getContent());
    return new PageImpl<>(employeeResponse, response.getPageable(), response.getTotalElements()); 
}

测试类

@RunWith(PowerMockRunner.class)
@PrepareForTest({PCUtils.class })
public class EmployeeServiceTest {
    @InjectMocks
    private EmployeeServiceimpl employeeServiceimpl;
    @Mock
    private Pageable pageableMock;
    @Mock
    private Page<Employee> employeePage;

    @Mock
    private EmployeeRepository employeeRepository;
    @Mock
    private EmployeeRepository programRepositoryMock;
    @Mock
    private RoleTypeRepository roleTypeRepository;

    @Mock
    private RoleType roleTypeMock;

    @Mock
    private Employee employee;
    @Mock
    private Optional<Employee> employeeOptional;
    @Mock
    private Employee programMock;
    @Mock
    private Optional<Employee> programOptionalMock;
    @Mock
    private EmployeeDto employeeDto;
    @Mock
    private Sort sortMock;
    @Mock
    private Exception ex;
    @Mock
    private Environment env;

    @Test
    public void test_findEmployeesPageable() {      
        when(employeeRepository.findAllByStatusAndRoleTypeActive(anyString(), pageableMock)).thenReturn(employeePage);
        when(pageableMock.getPageNumber()).thenReturn(1);
        when(pageableMock.getSort()).thenReturn(sortMock);

        assertNotNull(employeeServiceimpl.findEmployeePageable(pageableMock, anyString(), anyString(), anyString()));
    }
}

Answer 1

您的问题是线路

(1, 2, 3)

这不是assertNotNull(employeeServiceimpl.findEmployeePageable(pageableMock, anyString(), anyString(), anyString()));所做的。简而言之，anyString()用于在您

时匹配方法参数

添加方法（告诉Mockito在调用方法时如何操作），或
验证方法（询问Mockito是否调用该方法）。

但是在这里，您试图以完全不同的方式使用anyString()。看来您正在尝试使Mockito发明参数传递给您的方法。那不是Mockito所做的。

因此，您必须为该方法提供自己的参数。也许像

anyString()

Answer 2

尝试更换

@Test
public void test_findEmployeesPageable() {      
    when(employeeRepository.findAllByStatusAndRoleTypeActive(anyString(), pageableMock)).thenReturn(employeePage);
    when(pageableMock.getPageNumber()).thenReturn(1);
    when(pageableMock.getSort()).thenReturn(sortMock);

    assertNotNull(employeeServiceimpl.findEmployeePageable(pageableMock, anyString(), anyString(), anyString()));
}

与

@Test
public void test_findEmployeesPageable() {      
    when(employeeRepository.findAllByStatusAndRoleTypeActive("", pageableMock)).thenReturn(employeePage);
    when(pageableMock.getPageNumber()).thenReturn(1);
    when(pageableMock.getSort()).thenReturn(sortMock);

    assertNotNull(employeeServiceimpl.findEmployeePageable(pageableMock, "", "", ""));
}

这还大大提高了测试的可读性，因为哪个普通用户将“ Mockito.anyString（）”作为方法参数传递？

org.mockito.exceptions.misusing.InvalidUseOfMatchersException：参数匹配器的无效使用！春季靴

2 个答案: