PowerMock expectNew how to specify the type of the parameters

问题

When I use PowerMock to mock the constructor,I want to specify the type of the paremeters. I use the method

PowerMock.expectNew(Class<T> type, Class<?>[] parameterTypes, Object... arguments)

If I want to specify the String type, what shoud I fill in the parameterTypes?

回答1:

Given these example classes:

public class MyClass {
    public MyClass(String theParam) {
        //Some interesting code...
    }
}

public class MyFactory {
    public MyClass createMyClass() {
        return new MyClass("foo");
    }
}

Then you would do an expectNew as follows:

public class MyFactoryTest {
    @Test
    public void testCreateMyClass() {
        //...

        PowerMock.expectNew(MyClass.class, new Class[] {String.class}, "foo");

        //...
    }
}

来源：https://stackoverflow.com/questions/18480796/powermock-expectnew-how-to-specify-the-type-of-the-parameters