I want to mock an inherited protected method. I can't call this method directly from java code as it is inherited from class that in another package. I can't find a way to specify this method to stub in in 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
}
}
I looked at PowerMockito.when
overrides and this seems that they are all for private methods only!
How to specify protected method?
Nutshell: Can't always use when
to stub spies; use doReturn
.
Assuming static imports of spy
and doReturn
(both 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();
}
}
You could also @PrepareForTest(A.class)
and set up the doReturn
on when(a, "m")
. Which makes more sense depends on the actual test.