Re: Imposteriser produces ClassCastException when JUnit tests are run with Ant.

> How are you running the tests from ant?  In a forked JVM?  Or in Ant's JVM?
>
> --Nat
>
> 2009/5/11 Work <richard.rothwell@...>:
>> Hi All, just wasted a day on this.
>>
>> I am mocking Concrete classes using the standard Imposteriser.INSTANCE.
>>
>> The tests run fine under the Eclipse IDE.
>>
>> However when the same tests are run using the Ant JUnit task they fail with
>> a ClassCastException.
>>
>> The condition required to reproduce this bug is to mock a concrete class (or
>> its subclass) more than
>> once over several test classes. Typically the first use of the Mock class
>> succeeds, but subsequent
>> Test classes using the same mocked concrete class fail. Commenting out the
>> first usage
>> will allow the second usage (which failed) to succeed.
>>
>> Debugging into the code seems to show CGLIBed instances of the expected
>> class.
>>
>> The failure is in:
>>
>>     public <T> T imposterise(final Invokable mockObject, Class<T>
>> mockedType, Class<?>... ancilliaryTypes) {        if
>> (!mockedType.isInterface() && toStringMethodIsFinal(mockedType)) {
>>            throw new IllegalArgumentException(mockedType.getName() + " has a
>> final toString method");        }                try {
>>            setConstructorsAccessible(mockedType, true);            Class<?>
>> proxyClass = createProxyClass(mockedType, ancilliaryTypes);
>>            return mockedType.cast(createProxy(proxyClass, mockObject));
>>        }        finally {            setConstructorsAccessible(mockedType,
>> false);        }    }
>>
>>
>> On this line:
>>
>>             return mockedType.cast(createProxy(proxyClass, mockObject));
>> I have converted my own classes to use interfaces and removed imposteriser
>> (using just interfaces with the imposteriser also fails).
>> However I am now stuck because I am also mocking 3rd part classes.
>> Any workarounds appreciated.
>>
>> P.S. I have upgraded from 2.5.1 to 2.6.o without improvement.
>>
>
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