bf0dc265ae
With the removal of Python 2.x we can remove the unittest2 compat wrappers and switch to assertCountEqual instead of assertItemsEqual We have been able to use them since then, because testtools required unittest2, which still included it. With testtools removing Python 2.7 support [3][4], we will lose support for assertItemsEqual, so we should switch to use assertCountEqual. [1] - https://bugs.python.org/issue17866 [2] - https://hg.python.org/cpython/rev/d9921cb6e3cd [3] - testing-cabal/testtools#286 [4] - testing-cabal/testtools#277 Change-Id: I870286a2557e41099597c22dc9747743e1077615
152 lines
6 KiB
Python
152 lines
6 KiB
Python
# 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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from diskimage_builder.block_device.config import config_tree_to_graph
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from diskimage_builder.block_device.config import create_graph
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from diskimage_builder.block_device.exception import \
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BlockDeviceSetupException
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from diskimage_builder.block_device.tests.test_base import TestBase
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logger = logging.getLogger(__name__)
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class TestConfig(TestBase):
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"""Helper for setting up and reading a config"""
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def setUp(self):
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super(TestConfig, self).setUp()
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# previously we mocked some globals here ...
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class TestGraphGeneration(TestConfig):
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"""Extra helper class for testing graph generation"""
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def setUp(self):
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super(TestGraphGeneration, self).setUp()
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self.fake_default_config = {
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'build-dir': '/fake',
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'image-size': '1000',
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'image-dir': '/fake',
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'mount-base': '/fake',
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}
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class TestConfigParsing(TestConfig):
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"""Test parsing config file into a graph"""
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# test an entry in the config not being a valid plugin
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def test_config_bad_plugin(self):
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config = self.load_config_file('bad_plugin.yaml')
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self.assertRaises(BlockDeviceSetupException,
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config_tree_to_graph,
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config)
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# test a config that has multiple keys for a top-level entry
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def test_config_multikey_node(self):
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config = self.load_config_file('multi_key_node.yaml')
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self.assertRaisesRegex(BlockDeviceSetupException,
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"Config entry top-level should be a single "
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"dict:",
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config_tree_to_graph,
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config)
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# a graph should remain the same
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def test_graph(self):
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graph = self.load_config_file('simple_graph.yaml')
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parsed_graph = config_tree_to_graph(graph)
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self.assertCountEqual(parsed_graph, graph)
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# equivalence of simple tree to graph
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def test_simple_tree(self):
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tree = self.load_config_file('simple_tree.yaml')
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graph = self.load_config_file('simple_graph.yaml')
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parsed_graph = config_tree_to_graph(tree)
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self.assertCountEqual(parsed_graph, graph)
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# equivalence of a deeper tree to graph
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def test_deep_tree(self):
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tree = self.load_config_file('deep_tree.yaml')
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graph = self.load_config_file('deep_graph.yaml')
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parsed_graph = config_tree_to_graph(tree)
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self.assertCountEqual(parsed_graph, graph)
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# equivalence of a complicated multi-partition tree to graph
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def test_multipart_tree(self):
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tree = self.load_config_file('multiple_partitions_tree.yaml')
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graph = self.load_config_file('multiple_partitions_graph.yaml')
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parsed_graph = config_tree_to_graph(tree)
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logger.debug(parsed_graph)
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self.assertCountEqual(parsed_graph, graph)
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class TestCreateGraph(TestGraphGeneration):
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# Test a graph with bad edge pointing to an invalid node
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def test_invalid_missing(self):
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config = self.load_config_file('bad_edge_graph.yaml')
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self.assertRaisesRegex(BlockDeviceSetupException,
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"Edge not defined: this_is_not_a_node",
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create_graph,
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config, self.fake_default_config, {})
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# Test a graph with bad edge pointing to an invalid node
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def test_duplicate_name(self):
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config = self.load_config_file('duplicate_name.yaml')
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self.assertRaisesRegex(BlockDeviceSetupException,
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"Duplicate node name: "
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"this_is_a_duplicate",
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create_graph,
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config, self.fake_default_config, {})
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# Test digraph generation from deep_graph config file
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def test_deep_graph_generator(self):
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config = self.load_config_file('deep_graph.yaml')
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graph, call_order = create_graph(config, self.fake_default_config, {})
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call_order_list = [n.name for n in call_order]
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# manually created from deep_graph.yaml
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# Note unlike below, the sort here is stable because the graph
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# doesn't have multiple paths with only one partition
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call_order_names = ['image0', 'root', 'mkfs_root',
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'mount_mkfs_root',
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'fstab_mount_mkfs_root']
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self.assertListEqual(call_order_list, call_order_names)
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# Test multiple partition digraph generation
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def test_multiple_partitions_graph_generator(self):
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config = self.load_config_file('multiple_partitions_graph.yaml')
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graph, call_order = create_graph(config, self.fake_default_config, {})
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call_order_list = [n.name for n in call_order]
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# The sort creating call_order_list is unstable.
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# We want to ensure we see the "partitions" object in
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# root->var->var_log order
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root_pos = call_order_list.index('root')
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var_pos = call_order_list.index('var')
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var_log_pos = call_order_list.index('var_log')
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self.assertGreater(var_pos, root_pos)
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self.assertGreater(var_log_pos, var_pos)
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# Ensure mkfs happens after partition
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mkfs_root_pos = call_order_list.index('mkfs_root')
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self.assertLess(root_pos, mkfs_root_pos)
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mkfs_var_pos = call_order_list.index('mkfs_var')
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self.assertLess(var_pos, mkfs_var_pos)
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mkfs_var_log_pos = call_order_list.index('mkfs_var_log')
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self.assertLess(var_log_pos, mkfs_var_log_pos)
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