Common problems and solutions in the Mockito Inline framework
The Mockito Inline framework is a Mock object generation tool for Java development.It is a expansion based on the Mockito framework, which provides a simpler and more convenient way to generate and verify the Mock object in the unit test.However, when using the Mockito Inline framework, some common problems may be encountered.This article will introduce some common problems and provide corresponding solutions and Java code examples.
Frequently Asked Questions 1: Can't Mock Static Method
Solution: The Mockito framework itself does not support the direct Mock static method, but you can use the PowerMockito framework with the Mockito Inline framework to achieve Mock method.The following is an example:
public class StaticClass {
public static String staticMethod() {
return "Hello World!";
}
}
@Test
@ExtendWith(MockitoExtension.class)
@PrepareForTest(StaticClass.class)
public class MockStaticMethodTest {
@Test
public void testStaticMethod() {
PowerMockito.mockStatic(StaticClass.class);
Mockito.when(StaticClass.staticMethod()).thenReturn("Mocked method");
assertEquals("Mocked method", StaticClass.staticMethod());
}
}
Frequently Asked Questions 2: Can't Mock Private Method
Solution: The Mockito framework does not support MOCK by default, but you can use the Mockito Inline framework `@spy` to combine` mockito.withsettings (). DefaultAltanswer (mockito.calls_real_methods ) `Come on the private method MOCK.The following is an example:
public class PrivateMethodClass {
private String privateMethod() {
return "Hello World!";
}
}
@Test
@ExtendWith(MockitoExtension.class)
public class MockPrivateMethodTest {
@Test
public void testPrivateMethod() throws Exception {
PrivateMethodClass mockInstance = Mockito.spy(new PrivateMethodClass());
Mockito.withSettings().defaultAnswer(Mockito.CALLS_REAL_METHODS).when(mockInstance).privateMethod();
Method method = mockInstance.getClass().getDeclaredMethod("privateMethod");
method.setAccessible(true);
assertEquals("Hello World!", method.invoke(mockInstance));
}
}
Frequently Asked Questions 3: Can't Mock Final Method
Solution: The Mockito framework itself does not support the Mock method of the final method. ICTNESS.Lenient) `to partially supports the final methodMock.The following is an example:
public class FinalMethodClass {
public final String finalMethod() {
return "Hello World!";
}
}
@Test
@ExtendWith(MockitoExtension.class)
@MockitoSettings(strictness = Strictness.LENIENT)
public class MockFinalMethodTest {
@Test
public void testFinalMethod() {
FinalMethodClass mockInstance = Mockito.mock(FinalMethodClass.class);
Mockito.when(mockInstance.finalMethod()).thenReturn("Mocked method");
assertEquals("Mocked method", mockInstance.finalMethod());
}
}
Through the above solutions and sample code, some common problems that may be encountered when using the Mockito Inline framework.Of course, according to the specific application scenarios and needs, you can also choose other solutions or tools to solve the problem according to the situation.
