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@Capturing: expectation recorded on method using type parameter from generic base type fails to match #252

rliesenfeld opened this issue Jan 26, 2016 · 1 comment


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@rliesenfeld rliesenfeld commented Jan 26, 2016

The following test fails:

public interface Base<T> { T doSomething(); }
static class Impl implements Base<Integer> { public Integer doSomething() { return 1; } }

public void captureImplementationsOfGenericType(@Capturing final Base<?> anyInstance)
    new Expectations() {{ anyInstance.doSomething(); result = 2; }};

    int result = new Impl().doSomething();

    assertEquals(2, result);

The implementation class gets mocked (as doSomething() returns zero), but the invocation fails to match the recorded expectation.

@rliesenfeld rliesenfeld self-assigned this Jan 26, 2016
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@nothize nothize commented Jan 27, 2016

Do u have any idea if I may help to fix this issue as it helps me too?

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