stubout on a MockAnything sometimes succeeds, sometimes fails.

[ivancrneto]

1. Create a source file mox_restub.py, with the following contents:

import mox


class MyClass:

    def my_function():
        pass


m=mox.Mox()

print(MyClass.my_function)    # <unbound method MyClass.my_function>

m.stubout(MyClass, 'my_function')

print(MyClass.my_function)    # <MockAnything instance at 139942970002032>

m.stubout(MyClass, 'my_function')

print(MyClass.my_function)    # <MockAnything instance at 139942970064208>

m.stubout(MyClass, 'my_function') 
                            # TypeError: Cannot Mock a MockAnything! Did you
                            # remember to call UnsetStubs in your previous 
                            # test?

2. run python ./mox_restub.py

I expect an exception to be thrown at the second call to StubOutWithMock, since
MyClass.MyFunction is already a MockAnything that has not been unset with
UnsetStubs.

Instead, the second call to StubOutWithMock silently succeeds, but the third
call fails.

---

What version of the product are you using? On what operating system?

mox: python-mox 0.5.3-1ubuntu5
os: Ubuntu 12.04.1 LTS