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507 lines
16 KiB
507 lines
16 KiB
# Copyright 2015 The Kubernetes Authors All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Basic unit tests for template expansion library."""
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import expansion
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import os
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import unittest
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import yaml
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def GetFilePath():
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"""Find our source and data files."""
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return os.path.dirname(os.path.abspath(__file__))
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def ReadTestFile(filename):
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"""Returns contents of a file from the test/ directory."""
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full_path = GetFilePath() + '/../test/templates/' + filename
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test_file = open(full_path, 'r')
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return test_file.read()
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def GetTestBasePath(filename):
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"""Returns the base path of a file from the testdata/ directory."""
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full_path = GetFilePath() + '/../test/templates/' + filename
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return os.path.dirname(full_path)
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class ExpansionTest(unittest.TestCase):
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"""Tests basic functionality of the template expansion library."""
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EMPTY_RESPONSE = 'config:\n resources: []\nlayout:\n resources: []\n'
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def testEmptyExpansion(self):
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template = ''
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expanded_template = expansion.Expand(
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template)
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self.assertEqual('', expanded_template)
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def testNoResourcesList(self):
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template = 'imports: [ test.import ]'
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expanded_template = expansion.Expand(
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template)
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self.assertEqual(self.EMPTY_RESPONSE, expanded_template)
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def testResourcesListEmpty(self):
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template = 'resources:'
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expanded_template = expansion.Expand(
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template)
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self.assertEqual(self.EMPTY_RESPONSE, expanded_template)
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def testSimpleNoExpansionTemplate(self):
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template = ReadTestFile('simple.yaml')
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expanded_template = expansion.Expand(
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template)
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result_file = ReadTestFile('simple_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testJinjaExpansion(self):
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template = ReadTestFile('jinja_template.yaml')
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imports = {}
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imports['jinja_template.jinja'] = ReadTestFile('jinja_template.jinja')
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expanded_template = expansion.Expand(
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template, imports)
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result_file = ReadTestFile('jinja_template_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testJinjaWithNoParamsExpansion(self):
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template = ReadTestFile('jinja_noparams.yaml')
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imports = {}
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imports['jinja_noparams.jinja'] = ReadTestFile('jinja_noparams.jinja')
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expanded_template = expansion.Expand(
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template, imports)
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result_file = ReadTestFile('jinja_noparams_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testPythonWithNoParamsExpansion(self):
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template = ReadTestFile('python_noparams.yaml')
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imports = {}
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imports['python_noparams.py'] = ReadTestFile('python_noparams.py')
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expanded_template = expansion.Expand(
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template, imports)
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result_file = ReadTestFile('python_noparams_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testPythonExpansion(self):
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template = ReadTestFile('python_template.yaml')
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imports = {}
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imports['python_template.py'] = ReadTestFile('python_template.py')
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expanded_template = expansion.Expand(
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template, imports)
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result_file = ReadTestFile('python_template_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testPythonAndJinjaExpansion(self):
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template = ReadTestFile('python_and_jinja_template.yaml')
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imports = {}
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imports['python_and_jinja_template.py'] = ReadTestFile(
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'python_and_jinja_template.py')
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imports['python_and_jinja_template.jinja'] = ReadTestFile(
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'python_and_jinja_template.jinja')
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expanded_template = expansion.Expand(
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template, imports)
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result_file = ReadTestFile('python_and_jinja_template_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testNoImportErrors(self):
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template = 'resources: \n- type: something.jinja\n name: something'
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expansion.Expand(template, {})
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def testInvalidConfig(self):
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template = ReadTestFile('invalid_config.yaml')
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try:
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expansion.Expand(
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template)
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self.fail('Expansion should fail')
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except expansion.ExpansionError as e:
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self.assertNotIn(os.path.basename(expansion.__name__), e.message,
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'Do not leak internals')
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def testJinjaWithImport(self):
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template = ReadTestFile('jinja_template_with_import.yaml')
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imports = {}
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imports['jinja_template_with_import.jinja'] = ReadTestFile(
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'jinja_template_with_import.jinja')
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imports['helpers/common.jinja'] = ReadTestFile(
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'helpers/common.jinja')
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yaml_template = yaml.safe_load(template)
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expanded_template = expansion.Expand(
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str(yaml_template), imports)
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result_file = ReadTestFile('jinja_template_with_import_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testJinjaWithInlinedFile(self):
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template = ReadTestFile('jinja_template_with_inlinedfile.yaml')
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imports = {}
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imports['jinja_template_with_inlinedfile.jinja'] = ReadTestFile(
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'jinja_template_with_inlinedfile.jinja')
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imports['helpers/common.jinja'] = ReadTestFile(
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'helpers/common.jinja')
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imports['description_text.txt'] = ReadTestFile('description_text.txt')
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yaml_template = yaml.safe_load(template)
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expanded_template = expansion.Expand(
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str(yaml_template), imports)
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result_file = ReadTestFile('jinja_template_with_inlinedfile_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testPythonWithImport(self):
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template = ReadTestFile('python_template_with_import.yaml')
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imports = {}
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imports['python_template_with_import.py'] = ReadTestFile(
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'python_template_with_import.py')
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imports['helpers/common.py'] = ReadTestFile('helpers/common.py')
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imports['helpers/extra/common2.py'] = ReadTestFile(
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'helpers/extra/common2.py')
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imports['helpers/extra'] = ReadTestFile('helpers/extra/__init__.py')
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yaml_template = yaml.safe_load(template)
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expanded_template = expansion.Expand(
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str(yaml_template), imports)
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result_file = ReadTestFile('python_template_with_import_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testPythonWithInlinedFile(self):
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template = ReadTestFile('python_template_with_inlinedfile.yaml')
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imports = {}
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imports['python_template_with_inlinedfile.py'] = ReadTestFile(
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'python_template_with_inlinedfile.py')
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imports['helpers/common.py'] = ReadTestFile('helpers/common.py')
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imports['helpers/extra/common2.py'] = ReadTestFile(
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'helpers/extra/common2.py')
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imports['description_text.txt'] = ReadTestFile('description_text.txt')
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yaml_template = yaml.safe_load(template)
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expanded_template = expansion.Expand(
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str(yaml_template), imports)
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result_file = ReadTestFile(
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'python_template_with_inlinedfile_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testPythonWithEnvironment(self):
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template = ReadTestFile('python_template_with_env.yaml')
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imports = {}
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imports['python_template_with_env.py'] = ReadTestFile(
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'python_template_with_env.py')
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env = {'project': 'my-project'}
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expanded_template = expansion.Expand(
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template, imports, env)
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result_file = ReadTestFile('python_template_with_env_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testJinjaWithEnvironment(self):
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template = ReadTestFile('jinja_template_with_env.yaml')
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imports = {}
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imports['jinja_template_with_env.jinja'] = ReadTestFile(
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'jinja_template_with_env.jinja')
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env = {'project': 'test-project', 'deployment': 'test-deployment'}
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expanded_template = expansion.Expand(
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template, imports, env)
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result_file = ReadTestFile('jinja_template_with_env_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testMissingNameErrors(self):
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template = 'resources: \n- type: something.jinja\n'
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try:
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expansion.Expand(template, {})
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self.fail('Expansion should fail')
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except expansion.ExpansionError as e:
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self.assertTrue('not have a name' in e.message)
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def testDuplicateNamesErrors(self):
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template = ReadTestFile('duplicate_names.yaml')
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try:
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expansion.Expand(template, {})
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self.fail('Expansion should fail')
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except expansion.ExpansionError as e:
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self.assertTrue(("Resource name 'my_instance' is not unique"
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" in config.") in e.message)
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def testDuplicateNamesInSubtemplates(self):
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template = ReadTestFile('duplicate_names_in_subtemplates.yaml')
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imports = {}
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imports['duplicate_names_in_subtemplates.jinja'] = ReadTestFile(
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'duplicate_names_in_subtemplates.jinja')
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try:
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expansion.Expand(
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template, imports)
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self.fail('Expansion should fail')
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except expansion.ExpansionError as e:
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self.assertTrue('not unique in duplicate_names_in_subtemplates.jinja'
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in e.message)
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def testDuplicateNamesMixedLevel(self):
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template = ReadTestFile('duplicate_names_mixed_level.yaml')
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imports = {}
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imports['duplicate_names_B.jinja'] = ReadTestFile(
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'duplicate_names_B.jinja')
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imports['duplicate_names_C.jinja'] = ReadTestFile(
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'duplicate_names_C.jinja')
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expanded_template = expansion.Expand(
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template, imports)
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result_file = ReadTestFile('duplicate_names_mixed_level_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testDuplicateNamesParentChild(self):
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template = ReadTestFile('duplicate_names_parent_child.yaml')
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imports = {}
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imports['duplicate_names_B.jinja'] = ReadTestFile(
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'duplicate_names_B.jinja')
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expanded_template = expansion.Expand(
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template, imports)
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result_file = ReadTestFile('duplicate_names_parent_child_result.yaml')
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self.assertEquals(result_file, expanded_template)
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# Note, this template will fail in the frontend for duplicate resource names
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def testTemplateReturnsEmpty(self):
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template = ReadTestFile('no_resources.yaml')
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imports = {}
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imports['no_resources.py'] = ReadTestFile(
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'no_resources.py')
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try:
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expansion.Expand(
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template, imports)
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self.fail('Expansion should fail')
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except expansion.ExpansionError as e:
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self.assertIn('Template did not return a \'resources:\' field.',
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e.message)
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self.assertIn('no_resources.py', e.message)
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def testJinjaDefaultsSchema(self):
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# Loop 1000 times to make sure we don't rely on dictionary ordering.
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for unused_x in range(0, 1000):
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template = ReadTestFile('jinja_defaults.yaml')
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imports = {}
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imports['jinja_defaults.jinja'] = ReadTestFile(
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'jinja_defaults.jinja')
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imports['jinja_defaults.jinja.schema'] = ReadTestFile(
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'jinja_defaults.jinja.schema')
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expanded_template = expansion.Expand(
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template, imports,
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validate_schema=True)
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result_file = ReadTestFile('jinja_defaults_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testPythonDefaultsOverrideSchema(self):
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template = ReadTestFile('python_schema.yaml')
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imports = {}
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imports['python_schema.py'] = ReadTestFile('python_schema.py')
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imports['python_schema.py.schema'] = ReadTestFile('python_schema.py.schema')
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env = {'project': 'my-project'}
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expanded_template = expansion.Expand(
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template, imports, env=env,
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validate_schema=True)
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result_file = ReadTestFile('python_schema_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testJinjaMissingRequiredPropertySchema(self):
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template = ReadTestFile('jinja_missing_required.yaml')
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imports = {}
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imports['jinja_missing_required.jinja'] = ReadTestFile(
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'jinja_missing_required.jinja')
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imports['jinja_missing_required.jinja.schema'] = ReadTestFile(
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'jinja_missing_required.jinja.schema')
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try:
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expansion.Expand(
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template, imports,
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validate_schema=True)
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self.fail('Expansion error expected')
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except expansion.ExpansionError as e:
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self.assertIn('Invalid properties', e.message)
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self.assertIn("'important' is a required property", e.message)
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self.assertIn('jinja_missing_required_resource_name', e.message)
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def testJinjaErrorFileMessage(self):
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template = ReadTestFile('jinja_unresolved.yaml')
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imports = {}
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imports['jinja_unresolved.jinja'] = ReadTestFile('jinja_unresolved.jinja')
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try:
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expansion.Expand(
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template, imports,
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validate_schema=False)
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self.fail('Expansion error expected')
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except expansion.ExpansionError as e:
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self.assertIn('jinja_unresolved.jinja', e.message)
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def testJinjaMultipleErrorsSchema(self):
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template = ReadTestFile('jinja_multiple_errors.yaml')
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imports = {}
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imports['jinja_multiple_errors.jinja'] = ReadTestFile(
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'jinja_multiple_errors.jinja')
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imports['jinja_multiple_errors.jinja.schema'] = ReadTestFile(
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'jinja_multiple_errors.jinja.schema')
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try:
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expansion.Expand(
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template, imports,
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validate_schema=True)
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self.fail('Expansion error expected')
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except expansion.ExpansionError as e:
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self.assertIn('Invalid properties', e.message)
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self.assertIn("'a string' is not of type 'integer'", e.message)
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self.assertIn("'d' is not one of ['a', 'b', 'c']", e.message)
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self.assertIn("'longer than 10 chars' is too long", e.message)
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self.assertIn("{'multipleOf': 2} is not allowed for 6", e.message)
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def testPythonBadSchema(self):
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template = ReadTestFile('python_bad_schema.yaml')
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imports = {}
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imports['python_bad_schema.py'] = ReadTestFile(
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'python_bad_schema.py')
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imports['python_bad_schema.py.schema'] = ReadTestFile(
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'python_bad_schema.py.schema')
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try:
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expansion.Expand(
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template, imports,
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validate_schema=True)
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self.fail('Expansion error expected')
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except expansion.ExpansionError as e:
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self.assertIn('Invalid schema', e.message)
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self.assertIn("'int' is not valid under any of the given schemas",
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e.message)
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self.assertIn("'maximum' is a dependency of u'exclusiveMaximum'",
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e.message)
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self.assertIn("10 is not of type u'boolean'", e.message)
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self.assertIn("'not a list' is not of type u'array'", e.message)
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def testNoProperties(self):
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template = ReadTestFile('no_properties.yaml')
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imports = {}
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imports['no_properties.py'] = ReadTestFile(
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'no_properties.py')
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expanded_template = expansion.Expand(
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template, imports,
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validate_schema=True)
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result_file = ReadTestFile('no_properties_result.yaml')
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self.assertEquals(result_file, expanded_template)
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def testNestedTemplateSchema(self):
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template = ReadTestFile('use_helper.yaml')
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imports = {}
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imports['use_helper.jinja'] = ReadTestFile(
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'use_helper.jinja')
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imports['use_helper.jinja.schema'] = ReadTestFile(
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'use_helper.jinja.schema')
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imports['helper.jinja'] = ReadTestFile(
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'helper.jinja')
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imports['helper.jinja.schema'] = ReadTestFile(
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'helper.jinja.schema')
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expanded_template = expansion.Expand(
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template, imports,
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validate_schema=True)
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result_file = ReadTestFile('use_helper_result.yaml')
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self.assertEquals(result_file, expanded_template)
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if __name__ == '__main__':
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unittest.main()
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