我想模拟一个继承的受保护方法。我无法直接从java代码调用此方法,因为它从另一个包中的类继承。我找不到在when(...)
package a;
public class A() {
protected int m() {}
}
package b;
public class B extends a.A {
// this class currently does not override m method from a.A
public asd() {}
}
// test
package b;
class BTest {
@Test
public void testClass() {
B instance = PowerMockito.spy(new B());
PowerMockito.when(instance, <specify a method m>).thenReturn(123);
//PowerMockito.when(instance.m()).thenReturn(123); -- obviously does not work
}
}
我查看了PowerMockito.when
覆盖,这似乎只是私有方法!
如何指定受保护的方法?
答案 0 :(得分:25)
Nutshell:不能总是使用when
来存储间谍;使用doReturn
。
假设静态导入spy
和doReturn
(PowerMockito
}:
@RunWith(PowerMockRunner.class)
@PrepareForTest(B.class)
public class BTest {
@Test public void testClass() throws Exception {
B b = spy(new B());
doReturn(42).when(b, "m");
b.asd();
}
}
您还可以@PrepareForTest(A.class)
并在doReturn
上设置when(a, "m")
。哪个更有意义取决于实际测试。