PowerMock whenNew 不 return 模拟对象

Question

我无法让 PowerMock whenNew 工作，尽管遵循了多个不同的资源。这是我的例子：

public class MyClass {
  public void foo() {
    Point p = new Point(2, 3);
    System.out.println(p);
  }
}

我正在尝试将构造函数模拟为 Point 这样：

@RunWith(PowerMockRunner.class)
@PrepareForTest({MyClass.class})
public class MyClassTest {
  public void testFoo() {
    MyClass c = new MyClass();
    PowerMockito.whenNew(Point.class).withAnyArguments().thenReturn(new Point(0, 0));
    c.foo() // Still (2, 3) is printed instead of the mocked (0, 0)
  }
}

我是不是做错了什么？我应该提到我在 gradle 项目中使用 PowerMock。这似乎与 https://automationrhapsody.com/mock-new-object-creation-powermock/ 相同，所以我不确定为什么它对我不起作用。

Answer 1

@RunWith(PowerMockRunner.class)
@PrepareForTest({MyClass.class})
public class MyClassTest {
    @Test
    public void testFoo() throws Exception {
        //Arrange
        MyClass c = new MyClass();
        Point point = new Point(0,0);
        PowerMockito.whenNew(Point.class).withAnyArguments().thenReturn(point);

        //Act
        c.foo();

        //Assert
        PowerMockito.verifyNew(Point.class).withArguments(anyInt(), anyInt());
    }
}

通常我会 return 模拟对象。将 Point point = new Point(0,0) 替换为 Point point = PowerMockito.mock(Point.class)

PowerMock whenNew 不 return 模拟对象

PowerMock whenNew does not return Mocked Object

java

mocking

mockito

powermock

powermockito