157 lines
6.4 KiB
Python
157 lines
6.4 KiB
Python
# Copyright 2013 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import os
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import fixtures
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import testtools
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from diskimage_builder import element_dependencies
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data_dir = os.path.abspath(
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os.path.join(os.path.dirname(__file__), 'test-elements'))
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def _populate_element(element_dir, element_name, element_deps=[], provides=[]):
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element_home = os.path.join(element_dir, element_name)
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os.mkdir(element_home)
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deps_path = os.path.join(element_home, 'element-deps')
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with open(deps_path, 'w') as deps_file:
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deps_file.write("\n".join(element_deps))
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provides_path = os.path.join(element_home, 'element-provides')
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with open(provides_path, 'w') as provides_file:
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provides_file.write("\n".join(provides))
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class TestElementDeps(testtools.TestCase):
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def setUp(self):
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super(TestElementDeps, self).setUp()
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self.element_dir = self.useFixture(fixtures.TempDir()).path
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self.log_fixture = self.useFixture(
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fixtures.FakeLogger(level=logging.DEBUG))
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_populate_element(self.element_dir, 'requires-foo', ['foo'])
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_populate_element(self.element_dir,
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'foo',
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[],
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['operating-system'])
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_populate_element(self.element_dir,
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'requires-requires-foo',
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['requires-foo'])
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_populate_element(self.element_dir, 'self', ['self'])
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_populate_element(self.element_dir,
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'provides_virtual',
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[],
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['virtual'])
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_populate_element(self.element_dir,
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'requires_virtual',
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['virtual'],
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['operating-system'])
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_populate_element(self.element_dir, 'virtual', ['extra_dependency'])
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_populate_element(self.element_dir, 'extra_dependency', [])
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_populate_element(self.element_dir,
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'circular1',
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['circular2'],
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['operating-system'])
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_populate_element(self.element_dir, 'circular2', ['circular1'])
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_populate_element(self.element_dir,
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'provides_new_virtual',
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[],
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['new_virtual', 'operating-system'])
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_populate_element(self.element_dir,
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'requires_new_virtual',
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['new_virtual'])
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def test_non_transitive_deps(self):
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result = element_dependencies.expand_dependencies(
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['requires-foo'],
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elements_dir=self.element_dir)
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self.assertEqual(set(['requires-foo', 'foo']), result)
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def test_missing_deps(self):
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self.assertRaises(SystemExit,
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element_dependencies.expand_dependencies, ['fake'],
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self.element_dir)
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self.assertIn("Element 'fake' not found",
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self.log_fixture.output)
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def test_transitive_deps(self):
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result = element_dependencies.expand_dependencies(
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['requires-requires-foo'], elements_dir=self.element_dir)
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self.assertEqual(set(['requires-requires-foo',
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'requires-foo',
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'foo']), result)
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def test_no_deps(self):
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result = element_dependencies.expand_dependencies(
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['foo'], elements_dir=self.element_dir)
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self.assertEqual(set(['foo']), result)
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def test_self(self):
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result = element_dependencies.expand_dependencies(
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['self', 'foo'], elements_dir=self.element_dir)
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self.assertEqual(set(['self', 'foo']), result)
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def test_circular(self):
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result = element_dependencies.expand_dependencies(
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['circular1'], elements_dir=self.element_dir)
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self.assertEqual(set(['circular1', 'circular2']), result)
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def test_provide(self):
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result = element_dependencies.expand_dependencies(
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['provides_virtual', 'requires_virtual'],
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elements_dir=self.element_dir)
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self.assertEqual(set(['requires_virtual', 'provides_virtual']), result)
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def test_provide_conflict(self):
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self.assertRaises(SystemExit,
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element_dependencies.expand_dependencies,
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['virtual', 'provides_virtual'],
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self.element_dir)
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def test_provide_virtual_ordering(self):
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result = element_dependencies.expand_dependencies(
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['requires_new_virtual', 'provides_new_virtual'],
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elements_dir=self.element_dir)
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self.assertEqual(set(['requires_new_virtual', 'provides_new_virtual']),
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result)
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def test_no_os_element(self):
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self.assertRaises(SystemExit,
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element_dependencies.expand_dependencies,
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['provides_virtual'],
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elements_dir=self.element_dir)
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self.assertIn("Please include an operating system element",
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self.log_fixture.output)
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def test_duplicated_os_passed_as_element(self):
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self.assertRaises(SystemExit,
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element_dependencies.expand_dependencies,
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['circular1', 'operating-system'],
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elements_dir=self.element_dir)
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self.assertIn("provided by other included elements: operating-system",
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self.log_fixture.output)
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class TestElements(testtools.TestCase):
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def test_depends_on_env(self):
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self.useFixture(
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fixtures.EnvironmentVariable('ELEMENTS_PATH', '/foo/bar'))
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self.assertEqual('/foo/bar', element_dependencies.get_elements_dir())
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def test_env_not_set(self):
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self.useFixture(fixtures.EnvironmentVariable('ELEMENTS_PATH', ''))
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self.assertRaises(Exception, element_dependencies.get_elements_dir, ())
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