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Diffstat (limited to 'tests/unit/test_funcutils.py')
-rw-r--r-- | tests/unit/test_funcutils.py | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/tests/unit/test_funcutils.py b/tests/unit/test_funcutils.py new file mode 100644 index 0000000..439d825 --- /dev/null +++ b/tests/unit/test_funcutils.py @@ -0,0 +1,139 @@ +# vim: tabstop=4 shiftwidth=4 softtabstop=4 + +# Copyright 2011 OpenStack Foundation. +# Copyright 2011 Justin Santa Barbara +# +# All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +import functools + +from openstack.common import funcutils + +from tests import utils + + +class FuncutilsTestCase(utils.BaseTestCase): + def _test_func(self, instance, red=None, blue=None): + pass + + def test_all_kwargs(self): + args = () + kwargs = {'instance': {'uuid': 1}, 'red': 3, 'blue': 4} + callargs = funcutils.getcallargs(self._test_func, *args, **kwargs) + + #implicit self counts as an arg + self.assertEqual(4, len(callargs)) + self.assertTrue('instance' in callargs) + self.assertEqual({'uuid': 1}, callargs['instance']) + self.assertTrue('red' in callargs) + self.assertEqual(3, callargs['red']) + self.assertTrue('blue' in callargs) + self.assertEqual(4, callargs['blue']) + + def test_all_args(self): + args = ({'uuid': 1}, 3, 4) + kwargs = {} + callargs = funcutils.getcallargs(self._test_func, *args, **kwargs) + + #implicit self counts as an arg + self.assertEqual(4, len(callargs)) + self.assertTrue('instance' in callargs) + self.assertEqual({'uuid': 1}, callargs['instance']) + self.assertTrue('red' in callargs) + self.assertEqual(3, callargs['red']) + self.assertTrue('blue' in callargs) + self.assertEqual(4, callargs['blue']) + + def test_mixed_args(self): + args = ({'uuid': 1}, 3) + kwargs = {'blue': 4} + callargs = funcutils.getcallargs(self._test_func, *args, **kwargs) + + #implicit self counts as an arg + self.assertEqual(4, len(callargs)) + self.assertTrue('instance' in callargs) + self.assertEqual({'uuid': 1}, callargs['instance']) + self.assertTrue('red' in callargs) + self.assertEqual(3, callargs['red']) + self.assertTrue('blue' in callargs) + self.assertEqual(4, callargs['blue']) + + def test_partial_kwargs(self): + args = () + kwargs = {'instance': {'uuid': 1}, 'red': 3} + callargs = funcutils.getcallargs(self._test_func, *args, **kwargs) + + #implicit self counts as an arg + self.assertEqual(4, len(callargs)) + self.assertTrue('instance' in callargs) + self.assertEqual({'uuid': 1}, callargs['instance']) + self.assertTrue('red' in callargs) + self.assertEqual(3, callargs['red']) + self.assertTrue('blue' in callargs) + self.assertEqual(None, callargs['blue']) + + def test_partial_args(self): + args = ({'uuid': 1}, 3) + kwargs = {} + callargs = funcutils.getcallargs(self._test_func, *args, **kwargs) + + #implicit self counts as an arg + self.assertEqual(4, len(callargs)) + self.assertTrue('instance' in callargs) + self.assertEqual({'uuid': 1}, callargs['instance']) + self.assertTrue('red' in callargs) + self.assertEqual(3, callargs['red']) + self.assertTrue('blue' in callargs) + self.assertEqual(None, callargs['blue']) + + def test_partial_mixed_args(self): + args = (3,) + kwargs = {'instance': {'uuid': 1}} + callargs = funcutils.getcallargs(self._test_func, *args, **kwargs) + + self.assertEqual(4, len(callargs)) + self.assertTrue('instance' in callargs) + self.assertEqual({'uuid': 1}, callargs['instance']) + self.assertTrue('red' in callargs) + self.assertEqual(3, callargs['red']) + self.assertTrue('blue' in callargs) + self.assertEqual(None, callargs['blue']) + + def _wrapper(self, function): + + @functools.wraps(function) + def decorated_function(self, *args, **kwargs): + function(self, *args, **kwargs) + + return decorated_function + + def test_wrapped_X(self): + + def wrapped(self, instance, red=None, blue=None): + pass + + old_wrapped = wrapped + + # Wrap it many times and ensure that its still the right one. + for _i in range(0, 10): + wrapped = self._wrapper(wrapped) + func = funcutils.get_wrapped_function(wrapped) + func_code = func.func_code + self.assertEqual(4, len(func_code.co_varnames)) + self.assertTrue('self' in func_code.co_varnames) + self.assertTrue('instance' in func_code.co_varnames) + self.assertTrue('red' in func_code.co_varnames) + self.assertTrue('blue' in func_code.co_varnames) + self.assertEqual(old_wrapped, func) |