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# Copyright 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import unittest
from py_utils import discover
class DiscoverTest(unittest.TestCase):
def setUp(self):
self._base_dir = os.path.join(os.path.dirname(__file__), 'test_data')
self._start_dir = os.path.join(self._base_dir, 'discoverable_classes')
self._base_class = Exception
def testDiscoverClassesWithIndexByModuleName(self):
classes = discover.DiscoverClasses(self._start_dir,
self._base_dir,
self._base_class,
index_by_class_name=False)
actual_classes = dict((name, cls.__name__)
for name, cls in classes.iteritems())
expected_classes = {
'another_discover_dummyclass': 'DummyExceptionWithParameterImpl1',
'discover_dummyclass': 'DummyException',
'parameter_discover_dummyclass': 'DummyExceptionWithParameterImpl2'
}
self.assertEqual(actual_classes, expected_classes)
def testDiscoverDirectlyConstructableClassesWithIndexByClassName(self):
classes = discover.DiscoverClasses(self._start_dir,
self._base_dir,
self._base_class,
directly_constructable=True)
actual_classes = dict((name, cls.__name__)
for name, cls in classes.iteritems())
expected_classes = {
'dummy_exception': 'DummyException',
'dummy_exception_impl1': 'DummyExceptionImpl1',
'dummy_exception_impl2': 'DummyExceptionImpl2',
}
self.assertEqual(actual_classes, expected_classes)
def testDiscoverClassesWithIndexByClassName(self):
classes = discover.DiscoverClasses(self._start_dir, self._base_dir,
self._base_class)
actual_classes = dict((name, cls.__name__)
for name, cls in classes.iteritems())
expected_classes = {
'dummy_exception': 'DummyException',
'dummy_exception_impl1': 'DummyExceptionImpl1',
'dummy_exception_impl2': 'DummyExceptionImpl2',
'dummy_exception_with_parameter_impl1':
'DummyExceptionWithParameterImpl1',
'dummy_exception_with_parameter_impl2':
'DummyExceptionWithParameterImpl2'
}
self.assertEqual(actual_classes, expected_classes)
def testDiscoverClassesWithPatternAndIndexByModule(self):
classes = discover.DiscoverClasses(self._start_dir,
self._base_dir,
self._base_class,
pattern='another*',
index_by_class_name=False)
actual_classes = dict((name, cls.__name__)
for name, cls in classes.iteritems())
expected_classes = {
'another_discover_dummyclass': 'DummyExceptionWithParameterImpl1'
}
self.assertEqual(actual_classes, expected_classes)
def testDiscoverDirectlyConstructableClassesWithPatternAndIndexByClassName(
self):
classes = discover.DiscoverClasses(self._start_dir,
self._base_dir,
self._base_class,
pattern='another*',
directly_constructable=True)
actual_classes = dict((name, cls.__name__)
for name, cls in classes.iteritems())
expected_classes = {
'dummy_exception_impl1': 'DummyExceptionImpl1',
'dummy_exception_impl2': 'DummyExceptionImpl2',
}
self.assertEqual(actual_classes, expected_classes)
def testDiscoverClassesWithPatternAndIndexByClassName(self):
classes = discover.DiscoverClasses(self._start_dir,
self._base_dir,
self._base_class,
pattern='another*')
actual_classes = dict((name, cls.__name__)
for name, cls in classes.iteritems())
expected_classes = {
'dummy_exception_impl1': 'DummyExceptionImpl1',
'dummy_exception_impl2': 'DummyExceptionImpl2',
'dummy_exception_with_parameter_impl1':
'DummyExceptionWithParameterImpl1',
}
self.assertEqual(actual_classes, expected_classes)
class ClassWithoutInitDefOne: # pylint: disable=old-style-class, no-init
pass
class ClassWithoutInitDefTwo(object):
pass
class ClassWhoseInitOnlyHasSelf(object):
def __init__(self):
pass
class ClassWhoseInitWithDefaultArguments(object):
def __init__(self, dog=1, cat=None, cow=None, fud='a'):
pass
class ClassWhoseInitWithDefaultArgumentsAndNonDefaultArguments(object):
def __init__(self, x, dog=1, cat=None, fish=None, fud='a'):
pass
class IsDirectlyConstructableTest(unittest.TestCase):
def testIsDirectlyConstructableReturnsTrue(self):
self.assertTrue(discover.IsDirectlyConstructable(ClassWithoutInitDefOne))
self.assertTrue(discover.IsDirectlyConstructable(ClassWithoutInitDefTwo))
self.assertTrue(discover.IsDirectlyConstructable(ClassWhoseInitOnlyHasSelf))
self.assertTrue(
discover.IsDirectlyConstructable(ClassWhoseInitWithDefaultArguments))
def testIsDirectlyConstructableReturnsFalse(self):
self.assertFalse(
discover.IsDirectlyConstructable(
ClassWhoseInitWithDefaultArgumentsAndNonDefaultArguments))
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