319 lines
12 KiB
Python
319 lines
12 KiB
Python
#
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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 copy
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import uuid
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import six
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from heat.common import exception
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from heat.common.i18n import _
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from heat.engine.cfn import functions
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from heat.engine import environment
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from heat.engine import function
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from heat.engine import resource
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from heat.engine import rsrc_defn
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from heat.engine import stack
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from heat.engine import stk_defn
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from heat.engine import template
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from heat.tests import common
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from heat.tests import utils
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class TestFunction(function.Function):
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def validate(self):
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if len(self.args) < 2:
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raise TypeError(_('Need more arguments'))
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def dependencies(self, path):
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return ['foo', 'bar']
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def result(self):
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return 'wibble'
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class TestFunctionKeyError(function.Function):
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def result(self):
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raise TypeError
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class TestFunctionValueError(function.Function):
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def result(self):
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raise ValueError
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class TestFunctionResult(function.Function):
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def result(self):
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return super(TestFunctionResult, self).result()
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class FunctionTest(common.HeatTestCase):
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def test_equal(self):
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func = TestFunction(None, 'foo', ['bar', 'baz'])
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self.assertTrue(func == 'wibble')
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self.assertTrue('wibble' == func)
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def test_not_equal(self):
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func = TestFunction(None, 'foo', ['bar', 'baz'])
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self.assertTrue(func != 'foo')
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self.assertTrue('foo' != func)
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def test_equal_func(self):
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func1 = TestFunction(None, 'foo', ['bar', 'baz'])
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func2 = TestFunction(None, 'blarg', ['wibble', 'quux'])
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self.assertTrue(func1 == func2)
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def test_function_str_value(self):
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func1 = TestFunction(None, 'foo', ['bar', 'baz'])
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expected = '%s %s' % ("<heat.tests.test_function.TestFunction",
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"{foo: ['bar', 'baz']} -> 'wibble'>")
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self.assertEqual(expected, six.text_type(func1))
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def test_function_stack_reference_none(self):
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func1 = TestFunction(None, 'foo', ['bar', 'baz'])
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self.assertIsNone(func1.stack)
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def test_function_exception_key_error(self):
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func1 = TestFunctionKeyError(None, 'foo', ['bar', 'baz'])
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expected = '%s %s' % ("<heat.tests.test_function.TestFunctionKeyError",
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"{foo: ['bar', 'baz']} -> ???>")
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self.assertEqual(expected, six.text_type(func1))
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def test_function_eq_exception_key_error(self):
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func1 = TestFunctionKeyError(None, 'foo', ['bar', 'baz'])
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func2 = TestFunctionKeyError(None, 'foo', ['bar', 'baz'])
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result = func1.__eq__(func2)
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self.assertEqual(result, NotImplemented)
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def test_function_ne_exception_key_error(self):
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func1 = TestFunctionKeyError(None, 'foo', ['bar', 'baz'])
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func2 = TestFunctionKeyError(None, 'foo', ['bar', 'baz'])
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result = func1.__ne__(func2)
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self.assertEqual(result, NotImplemented)
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def test_function_exception_value_error(self):
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func1 = TestFunctionValueError(None, 'foo', ['bar', 'baz'])
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expected = '%s %s' % (
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"<heat.tests.test_function.TestFunctionValueError",
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"{foo: ['bar', 'baz']} -> ???>")
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self.assertEqual(expected, six.text_type(func1))
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def test_function_eq_exception_value_error(self):
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func1 = TestFunctionValueError(None, 'foo', ['bar', 'baz'])
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func2 = TestFunctionValueError(None, 'foo', ['bar', 'baz'])
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result = func1.__eq__(func2)
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self.assertEqual(result, NotImplemented)
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def test_function_ne_exception_value_error(self):
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func1 = TestFunctionValueError(None, 'foo', ['bar', 'baz'])
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func2 = TestFunctionValueError(None, 'foo', ['bar', 'baz'])
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result = func1.__ne__(func2)
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self.assertEqual(result, NotImplemented)
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def test_function_abstract_result(self):
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func1 = TestFunctionResult(None, 'foo', ['bar', 'baz'])
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expected = '%s %s -> %s' % (
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"<heat.tests.test_function.TestFunctionResult",
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"{foo: ['bar', 'baz']}",
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"{'foo': ['bar', 'baz']}>")
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self.assertEqual(expected, six.text_type(func1))
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def test_copy(self):
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func = TestFunction(None, 'foo', ['bar', 'baz'])
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self.assertEqual({'foo': ['bar', 'baz']}, copy.deepcopy(func))
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class ResolveTest(common.HeatTestCase):
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def test_resolve_func(self):
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func = TestFunction(None, 'foo', ['bar', 'baz'])
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result = function.resolve(func)
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self.assertEqual('wibble', result)
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self.assertIsInstance(result, str)
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def test_resolve_dict(self):
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func = TestFunction(None, 'foo', ['bar', 'baz'])
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snippet = {'foo': 'bar', 'blarg': func}
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result = function.resolve(snippet)
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self.assertEqual({'foo': 'bar', 'blarg': 'wibble'}, result)
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self.assertIsNot(result, snippet)
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def test_resolve_list(self):
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func = TestFunction(None, 'foo', ['bar', 'baz'])
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snippet = ['foo', 'bar', 'baz', 'blarg', func]
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result = function.resolve(snippet)
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self.assertEqual(['foo', 'bar', 'baz', 'blarg', 'wibble'], result)
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self.assertIsNot(result, snippet)
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def test_resolve_all(self):
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func = TestFunction(None, 'foo', ['bar', 'baz'])
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snippet = ['foo', {'bar': ['baz', {'blarg': func}]}]
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result = function.resolve(snippet)
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self.assertEqual(['foo', {'bar': ['baz', {'blarg': 'wibble'}]}],
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result)
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self.assertIsNot(result, snippet)
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class ValidateTest(common.HeatTestCase):
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def setUp(self):
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super(ValidateTest, self).setUp()
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self.func = TestFunction(None, 'foo', ['bar', 'baz'])
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def test_validate_func(self):
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self.assertIsNone(function.validate(self.func))
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self.func = TestFunction(None, 'foo', ['bar'])
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self.assertRaisesRegex(exception.StackValidationFailed,
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'foo: Need more arguments',
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function.validate, self.func)
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def test_validate_dict(self):
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snippet = {'foo': 'bar', 'blarg': self.func}
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function.validate(snippet)
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self.func = TestFunction(None, 'foo', ['bar'])
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snippet = {'foo': 'bar', 'blarg': self.func}
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self.assertRaisesRegex(exception.StackValidationFailed,
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'blarg.foo: Need more arguments',
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function.validate, snippet)
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def test_validate_list(self):
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snippet = ['foo', 'bar', 'baz', 'blarg', self.func]
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function.validate(snippet)
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self.func = TestFunction(None, 'foo', ['bar'])
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snippet = {'foo': 'bar', 'blarg': self.func}
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self.assertRaisesRegex(exception.StackValidationFailed,
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'blarg.foo: Need more arguments',
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function.validate, snippet)
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def test_validate_all(self):
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snippet = ['foo', {'bar': ['baz', {'blarg': self.func}]}]
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function.validate(snippet)
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self.func = TestFunction(None, 'foo', ['bar'])
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snippet = {'foo': 'bar', 'blarg': self.func}
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self.assertRaisesRegex(exception.StackValidationFailed,
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'blarg.foo: Need more arguments',
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function.validate, snippet)
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class DependenciesTest(common.HeatTestCase):
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func = TestFunction(None, 'test', None)
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scenarios = [
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('function', dict(snippet=func)),
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('nested_map', dict(snippet={'wibble': func})),
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('nested_list', dict(snippet=['wibble', func])),
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('deep_nested', dict(snippet=[{'wibble': ['wibble', func]}])),
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]
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def test_dependencies(self):
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deps = list(function.dependencies(self.snippet))
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self.assertIn('foo', deps)
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self.assertIn('bar', deps)
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self.assertEqual(2, len(deps))
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class ValidateGetAttTest(common.HeatTestCase):
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def setUp(self):
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super(ValidateGetAttTest, self).setUp()
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env = environment.Environment()
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env.load({u'resource_registry':
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{u'OS::Test::GenericResource': u'GenericResourceType'}})
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env.load({u'resource_registry':
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{u'OS::Test::FakeResource': u'OverwrittenFnGetAttType'}})
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tmpl = template.Template({"HeatTemplateFormatVersion": "2012-12-12",
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"Resources": {
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"test_rsrc": {
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"Type": "OS::Test::GenericResource"
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},
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"get_att_rsrc": {
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"Type": "OS::Heat::Value",
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"Properties": {
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"value": {
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"Fn::GetAtt": ["test_rsrc",
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"Foo"]
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}
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}
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}
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}},
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env=env)
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self.stack = stack.Stack(
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utils.dummy_context(), 'test_stack',
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tmpl,
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stack_id=str(uuid.uuid4()))
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self.rsrc = self.stack['test_rsrc']
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self.stack.validate()
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def test_resource_is_appear_in_stack(self):
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func = functions.GetAtt(self.stack.defn, 'Fn::GetAtt',
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[self.rsrc.name, 'Foo'])
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self.assertIsNone(func.validate())
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def test_resource_is_not_appear_in_stack(self):
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self.stack.remove_resource(self.rsrc.name)
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func = functions.GetAtt(self.stack.defn, 'Fn::GetAtt',
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[self.rsrc.name, 'Foo'])
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ex = self.assertRaises(exception.InvalidTemplateReference,
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func.validate)
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self.assertEqual('The specified reference "test_rsrc" (in unknown) '
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'is incorrect.', six.text_type(ex))
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def test_resource_no_attribute_with_default_fn_get_att(self):
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res_defn = rsrc_defn.ResourceDefinition('test_rsrc',
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'ResWithStringPropAndAttr')
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self.rsrc = resource.Resource('test_rsrc', res_defn, self.stack)
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self.stack.add_resource(self.rsrc)
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stk_defn.update_resource_data(self.stack.defn, self.rsrc.name,
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self.rsrc.node_data())
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self.stack.validate()
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func = functions.GetAtt(self.stack.defn, 'Fn::GetAtt',
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[self.rsrc.name, 'Bar'])
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ex = self.assertRaises(exception.InvalidTemplateAttribute,
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func.validate)
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self.assertEqual('The Referenced Attribute (test_rsrc Bar) '
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'is incorrect.', six.text_type(ex))
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def test_resource_no_attribute_with_overwritten_fn_get_att(self):
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res_defn = rsrc_defn.ResourceDefinition('test_rsrc',
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'OS::Test::FakeResource')
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self.rsrc = resource.Resource('test_rsrc', res_defn, self.stack)
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self.rsrc.attributes_schema = {}
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self.stack.add_resource(self.rsrc)
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stk_defn.update_resource_data(self.stack.defn, self.rsrc.name,
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self.rsrc.node_data())
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self.stack.validate()
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func = functions.GetAtt(self.stack.defn, 'Fn::GetAtt',
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[self.rsrc.name, 'Foo'])
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self.assertIsNone(func.validate())
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def test_get_attr_without_attribute_name(self):
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ex = self.assertRaises(ValueError, functions.GetAtt,
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self.stack.defn, 'Fn::GetAtt', [self.rsrc.name])
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self.assertEqual('Arguments to "Fn::GetAtt" must be '
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'of the form [resource_name, attribute]',
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six.text_type(ex))
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