使用PowerMockito模拟接口

嘲弄 static 方法,您需要:

1. 添加 @PrepareForTest 在类或方法级别。

例子:

@PrepareForTest(Static.class) // Static.class contains static methods

2. Call PowerMockito.mockStatic(class) 要模拟静态类(使用 PowerMockito.spy(class) 模拟特定方法):

例子:

PowerMockito.mockStatic(Static.class);

3. 只是使用 Mockito.when() 要设置您的期望值:

例子:

Mockito.when(Static.firstStaticMethod(param)).thenReturn(value);

因此,在您的情况下,可能是这样的:

@RunWith(PowerMockRunner.class)
public class ConnectionFactoryTest {

    @Test
    @PrepareForTest(ConnectionFactory.class)
    public void testConnection() throws IOException {
        Connection mockconnection = PowerMockito.mock(Connection.class);
        PowerMockito.mockStatic(ConnectionFactory.class);
        PowerMockito.when(ConnectionFactory.createConnection()).thenReturn(mockconnection);

        // Do something here
    }
}

更多详情 how to mock a static method