WIP: Port to plain unittest and py3k-compatible (py2k is supported as well)

[mcepl]

Still not completely finished, but this is too much for my very limited understanding of the package.

Could I ask for help with finish this, please?

[    4s] + py.test-3.8 --ignore=_build.python2 --ignore=_build.python3 --ignore=_build.pypy3 -v
[    4s] ============================= test session starts ==============================
[    4s] platform linux -- Python 3.8.2, pytest-5.3.5, py-1.8.1, pluggy-0.13.1 -- /usr/bin/python3
[    4s] cachedir: .pytest_cache
[    4s] rootdir: /home/abuild/rpmbuild/BUILD/fudge-1.1.1
[    4s] collecting ... collected 203 items
[    4s] 
[    4s] fudge/tests/test_fudge.py::test_decorator_on_def FAILED                  [  0%]

[ ... ]

[    5s] 
[    5s] =================================== FAILURES ===================================
[    5s] ____________________________ test_decorator_on_def _____________________________
[    5s] 
[    5s]     def test_decorator_on_def():
[    5s]         class holder:
[    5s]             test_called = False
[    5s]     
[    5s]         bobby = fudge.Fake()
[    5s]         bobby.expects("suzie_called")
[    5s]     
[    5s]         @fudge.with_fakes
[    5s]         def some_test():
[    5s]             try:
[    5s]                 holder.test_called = True
[    5s]             except AssertionError:
[    5s]                 pass
[    5s]             else:
[    5s]                 raise AssertionError("Didn't raise AssertionError")
[    5s]     
[    5s]         assert some_test.__name__ == 'some_test'
[    5s] >       some_test()
[    5s] 
[    5s] fudge/tests/test_fudge.py:27: 
[    5s] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
[    5s] fudge/__init__.py:171: in apply_clear_and_verify
[    5s]     method(*args, **kw)
[    5s] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
[    5s] 
[    5s]     @fudge.with_fakes
[    5s]     def some_test():
[    5s]         try:
[    5s]             holder.test_called = True
[    5s]         except AssertionError:
[    5s]             pass
[    5s]         else:
[    5s] >           raise AssertionError("Didn't raise AssertionError")
[    5s] E           AssertionError: Didn't raise AssertionError
[    5s] 
[    5s] fudge/tests/test_fudge.py:24: AssertionError
[    5s] ____________ TestPatchedFakes.test_expectations_are_always_cleared _____________
[    5s] 
[    5s] self = <fudge.tests.test_fudge.TestPatchedFakes testMethod=test_expectations_are_always_cleared>
[    5s] 
[    5s]     def test_expectations_are_always_cleared(self):
[    5s]     
[    5s]         class holder:
[    5s]             test_called = False
[    5s]     
[    5s]         @fudge.patch('shutil.copy')
[    5s]         def some_test(copy):
[    5s]             with self.assertRaises(RuntimeError):
[    5s]                 holder.test_called = True
[    5s]                 copy.expects_call()
[    5s]                 raise RuntimeError
[    5s]     
[    5s] >       some_test()
[    5s] 
[    5s] fudge/tests/test_fudge.py:1171: 
[    5s] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
[    5s] fudge/patcher.py:86: in caller
[    5s]     self.__exit__(None, None, None)
[    5s] fudge/patcher.py:113: in __exit__
[    5s]     fudge.verify()
[    5s] fudge/__init__.py:132: in verify
[    5s]     registry.verify()
[    5s] fudge/__init__.py:98: in verify
[    5s]     exp.assert_called()
[    5s] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
[    5s] 
[    5s] self = fake:shutil.copy()
[    5s] 
[    5s]     def assert_called(self):
[    5s]         if not self.was_called:
[    5s] >           raise AssertionError("%s was not called" % (self))
[    5s] E           AssertionError: fake:shutil.copy() was not called
[    5s] 
[    5s] fudge/__init__.py:456: AssertionError
[    5s] _________ TestNonPatchedFakeTest.test_expectations_are_always_cleared __________
[    5s] 
[    5s] self = <fudge.tests.test_fudge.TestNonPatchedFakeTest testMethod=test_expectations_are_always_cleared>
[    5s] 
[    5s]     def test_expectations_are_always_cleared(self):
[    5s]     
[    5s]         class holder:
[    5s]             test_called = False
[    5s]     
[    5s]         @fudge.test
[    5s]         def some_test():
[    5s]             with self.assertRaises(RuntimeError):
[    5s]                 holder.test_called = True
[    5s]                 fake = fudge.Fake('db').expects('save')
[    5s]                 raise RuntimeError
[    5s]     
[    5s] >       some_test()
[    5s] 
[    5s] fudge/tests/test_fudge.py:1260: 
[    5s] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
[    5s] fudge/__init__.py:210: in clear_and_verify
[    5s]     verify() # if no exceptions
[    5s] fudge/__init__.py:132: in verify
[    5s]     registry.verify()
[    5s] fudge/__init__.py:98: in verify
[    5s]     exp.assert_called()
[    5s] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
[    5s] 
[    5s] self = fake:db.save()
[    5s] 
[    5s]     def assert_called(self):
[    5s]         if not self.was_called:
[    5s] >           raise AssertionError("%s was not called" % (self))
[    5s] E           AssertionError: fake:db.save() was not called
[    5s] 
[    5s] fudge/__init__.py:456: AssertionError
[    5s] _________________ TestRegistry.test_global_clear_expectations __________________
[    5s] 
[    5s] self = <fudge.tests.test_registry.TestRegistry testMethod=test_global_clear_expectations>
[    5s] 
[    5s]     def test_global_clear_expectations(self):
[    5s]         exp = ExpectedCall(self.fake, 'callMe')
[    5s]         exp()
[    5s]         self.assertEqual(len(self.reg.get_expected_calls()), 1)
[    5s]         exp_order = ExpectedCallOrder(self.fake)
[    5s]         self.reg.remember_expected_call_order(exp_order)
[    5s] >       self.assertEqual(self.reg.get_expected_call_order().keys(), [self.fake])
[    5s] E       AssertionError: dict_keys([fake:unnamed]) != [fake:unnamed]
[    5s] 
[    5s] fudge/tests/test_registry.py:87: AssertionError
[    5s] ======================== 4 failed, 199 passed in 0.92s =========================