Java Code:

1
2
3
4
5
6
7
8
9
10
11
@Test
public void testMockUp() {
    new MockUp<Object>() {
        @Mock
        public String toString() {
            return "bla";
        }
    };
    Object obj = new Object();
    assertThat(obj.toString(), is(equalTo("bla")));
}