def test_get_object_without_nested_conditions(self): """ Test Getting condition names in an object/list """ template = cfnlint.helpers.convert_dict({ 'Conditions': { 'isProduction': {'Fn::Equals': [{'Ref': 'myEnvironment'}, 'prod']}, 'isDevelopment': {'Fn::Equals': [{'Ref': 'myEnvironment'}, 'dev']} }, 'Resources': { 'myInstance': { 'Type': 'AWS::EC2::Instance', 'Properties': { 'ImageId': { 'Fn::If': [ 'isProduction', 'ami-prod1234', { 'Fn::If': [ 'isDevelopment', 'ami-dev1234', 'ami-lab1234' ] } ] } } } } }) template = Template('test.yaml', template) results = template.get_object_without_conditions( template.template.get('Resources', {}).get('myInstance', {}).get('Properties', {}) ) self.assertEqual(len(results), 3) for result in results: if result['Scenario']['isProduction'] and not result['Scenario']['isDevelopment']: self.assertDictEqual( result['Object'], { 'ImageId': 'ami-prod1234' } ) elif result['Scenario'] == {'isProduction': False, 'isDevelopment': True}: self.assertDictEqual( result['Object'], { 'ImageId': 'ami-dev1234' } ) elif result['Scenario'] == {'isProduction': False, 'isDevelopment': False}: self.assertDictEqual( result['Object'], { 'ImageId': 'ami-lab1234' } ) else: # Blanket assertion error self.assertDictEqual(result['Scenario'], {})
def run_cli(filename, template, rules, regions, override_spec, build_graph, registry_schemas, mandatory_rules=None): """Process args and run""" if override_spec: cfnlint.helpers.override_specs(override_spec) if build_graph: template_obj = Template(filename, template, regions) template_obj.build_graph() if registry_schemas: for path in registry_schemas: if path and os.path.isdir(os.path.expanduser(path)): for f in os.listdir(path): with open(os.path.join(path, f)) as schema: REGISTRY_SCHEMAS.append(json.load(schema)) return run_checks(filename, template, rules, regions, mandatory_rules)
def test_get_object_without_conditions_for_list(self): """ Test Getting condition names in an object/list """ template = cfnlint.helpers.convert_dict({ 'Conditions': { 'CreateAppVolume': {'Fn::Equals': [{'Ref': 'CreateVolums'}, 'true']} }, 'Resources': { 'myInstance': { 'Type': 'AWS::EC2::Instance', 'Properties': { 'ImageId': 'ami-123456', 'BlockDeviceMappings': { 'Fn::If': [ 'CreateAppVolume', [ { 'DeviceName': '/dev/hda1', 'Ebs': { 'DeleteOnTermination': True, 'VolumeType': 'gp2' } }, { 'DeviceName': '/dev/xvdf', 'Ebs': { 'DeleteOnTermination': True, 'VolumeType': 'gp2' } } ], { 'Ref': 'AWS::NoValue' } ] } } } } }) template = Template('test.yaml', template) results = template.get_object_without_conditions( template.template.get('Resources').get('myInstance').get( 'Properties').get('BlockDeviceMappings') ) # handles IFs for a list self.assertEqual( results, [ { 'Scenario': {'CreateAppVolume': True}, 'Object': [ {'DeviceName': '/dev/hda1', 'Ebs': {'DeleteOnTermination': True, 'VolumeType': 'gp2'}}, {'DeviceName': '/dev/xvdf', 'Ebs': {'DeleteOnTermination': True, 'VolumeType': 'gp2'}} ] } ] )
def __init__( self, rules, filename, template, regions, verbosity=0, mandatory_rules=None): self.rules = rules self.filename = filename self.verbosity = verbosity self.mandatory_rules = mandatory_rules or [] self.cfn = Template(filename, template, regions)
def test_success_run(self): """ Test Run Logic""" filename = 'test/fixtures/templates/good/generic.yaml' template = cfnlint.decode.cfn_yaml.load(filename) cfn = Template(filename, template, ['us-east-1']) matches = [] matches.extend(self.rules.run(filename, cfn)) assert (matches == [])
def test_get_object_without_conditions_no_value(self): """ Test Getting condition names in an object/list """ template = { 'Conditions': { 'CreateAppVolume': {'Fn::Equals': [{'Ref': 'myAppVolume'}, 'true']} }, 'Resources': { 'myInstance': { 'Type': 'AWS::EC2::Instance', 'Properties': { 'ImageId': 'ami-123456', 'BlockDeviceMappings': [ { 'DeviceName': '/dev/hda1', 'Ebs': { 'DeleteOnTermination': True, 'VolumeType': 'gp2' } }, { 'Fn::If': [ 'CreateAppVolume', { 'DeviceName': '/dev/xvdf', 'Ebs': { 'DeleteOnTermination': True, 'VolumeType': 'gp2' } }, { 'Ref': 'AWS::NoValue' } ] } ] } } } } template = Template('test.yaml', template) results = template.get_object_without_conditions( template.template.get('Resources').get('myInstance').get( 'Properties').get('BlockDeviceMappings')[1].get('Fn::If')[2] ) self.assertEqual(results, []) results = template.get_object_without_conditions( template.template.get('Resources').get('myInstance').get( 'Properties').get('BlockDeviceMappings') ) # when item is a list return empty list self.assertEqual(results, []) # when item is a string return empty list self.assertEqual(template.get_object_without_conditions('String'), [])
def test_is_resource_available(self): """ Test is resource available """ temp_obj = cfnlint.helpers.convert_dict({ 'Mappings': {'location': {'us-east-1': {'primary': 'True'}}}, 'Conditions': { 'isPrimary': {'Fn::Equals': ['True', {'Fn::FindInMap': ['location', {'Ref': 'AWS::Region'}, 'primary']}]}, }, 'Resources': { 'LambdaExecutionRole': { 'Condition': 'isPrimary', 'Type': 'AWS::IAM::Role', 'Properties': {} }, 'AMIIDLookup': { 'Type': 'AWS::Lambda::Function', 'Properties': { 'Handler': 'index.handler', 'Role': { 'Fn::If': ['isPrimary', {'Fn::GetAtt': 'LambdaExecutionRole.Arn'}, {'Ref': 'AWS::NoValue'}] } } } }, 'Outputs': { 'lambdaArn': { 'Condition': 'isPrimary', 'Value': {'Fn::GetAtt': 'LambdaExecutionRole.Arn'} } } }) template = Template('test.yaml', temp_obj) # Doesn't fail with a Fn::If based condition self.assertEqual( template.is_resource_available( ['Resources', 'AMIIDLookup', 'Properties', 'Role', 'Fn::If', 1, 'Fn::GetAtt', ['LambdaExecutionRole', 'Arn']], 'LambdaExecutionRole' ), [] ) # Doesn't fail when the Output has a Condition defined self.assertEqual( template.is_resource_available( ['Outputs', 'lambdaArn', 'Value', 'Fn::GetAtt', ['LambdaExecutionRole', 'Arn']], 'LambdaExecutionRole' ), [] ) # Doesn't fail when the Resource doesn't exist self.assertEqual( template.is_resource_available( ['Outputs', 'lambdaArn', 'Value', 'Fn::GetAtt', ['LambdaExecutionRole', 'Arn']], 'UnknownResource' ), [] )
def run_tests(self, rulename): for _, values in self.filenames.items(): filename = values.get('filename') template = cfnlint.decode.cfn_yaml.load(filename) cfn = Template(filename, template, ['us-east-1']) rules = RulesCollection(None, None, None, False, None) rules.create_from_custom_rules_file(rulename) runner = cfnlint.runner.Runner(rules, filename, template, None, None) return runner.run()
def test_fail_sub_properties_run(self): """Test failure run""" filename = 'test/fixtures/templates/bad/resources/properties/onlyone.yaml' template = cfnlint.decode.cfn_yaml.load(filename) cfn = Template(filename, template, ['us-east-1']) matches = [] matches.extend(self.rules.run(filename, cfn)) self.assertEqual( 5, len(matches), 'Expected {} failures, got {}'.format(5, len(matches)))
def test_success_escape_character(self): """Test Successful JSON Parsing""" failures = 1 filename = 'test/fixtures/templates/good/decode/parsing.json' template = cfnlint.decode.cfn_json.load(filename) cfn = Template(filename, template, ['us-east-1']) matches = [] matches.extend(self.rules.run(filename, cfn)) assert len(matches) == failures, 'Expected {} failures, got {} on {}'.format( failures, len(matches), filename)
def run_cli(filename, template, rules, regions, override_spec, build_graph, mandatory_rules=None): """Process args and run""" if override_spec: cfnlint.helpers.override_specs(override_spec) if build_graph: template_obj = Template(filename, template, regions) template_obj.build_graph() return run_checks(filename, template, rules, regions, mandatory_rules)
def test_fail_run(self): """Test failure run""" filename = 'test/fixtures/templates/bad/generic.yaml' template = cfnlint.decode.cfn_yaml.load(filename) cfn = Template(filename, template, ['us-east-1']) expected_err_count = 36 matches = [] matches.extend(self.rules.run(filename, cfn)) assert len( matches ) == expected_err_count, 'Expected {} failures, got {}'.format( expected_err_count, len(matches))
def test_success_parse(self): """Test Successful YAML Parsing""" for _, values in self.filenames.items(): filename = values.get('filename') failures = values.get('failures') template = cfnlint.decode.cfn_yaml.load(filename) cfn = Template(filename, template, ['us-east-1']) matches = [] matches.extend(self.rules.run(filename, cfn)) assert len(matches) == failures, 'Expected {} failures, got {} on {}'.format( failures, len(matches), filename)
def test_get_resources_bad(self): """Don't get resources that aren't properly configured""" template = { 'Resources': { 'Properties': { 'BucketName': "bucket_test" }, 'Type': "AWS::S3::Bucket" } } self.template = Template('test.yaml', template) resources = self.template.get_resources() assert resources == {}
def test_get_object_without_nested_conditions_basic(self): """ Test Getting condition names in an object/list """ template = { 'Resources': { 'Test': 'Test' } } template = Template('test.yaml', template) results = template.get_object_without_nested_conditions( template.template.get('Resources', {}).get('Test', {}), ['Resources', 'Test'] ) self.assertEqual(results, [])
def test_success_parse_stdin(self): """Test Successful YAML Parsing through stdin""" for _, values in self.filenames.items(): filename = '-' failures = values.get('failures') with open(values.get('filename'), 'r') as fp: file_content = fp.read() with patch('sys.stdin', StringIO(file_content)): template = cfnlint.decode.cfn_yaml.load(filename) cfn = Template(filename, template, ['us-east-1']) matches = [] matches.extend(self.rules.run(filename, cfn)) assert len(matches) == failures, 'Expected {} failures, got {} on {}'.format( failures, len(matches), values.get('filename'))
def test_failure_get_conditions_from_path(self): """ Test get conditions from path when things arne't formatted correctly """ temp_obj = cfnlint.helpers.convert_dict({ 'Resources': { 'AMIIDLookup': { 'Type': 'AWS::Lambda::Function', 'Properties': { 'Role': { 'Fn::If': ['isPrimary', {'Fn::GetAtt': 'LambdaExecutionRole.Arn'}] } } }, 'myInstance4': { 'Type': 'AWS::EC2::Instance', 'Properties': { 'InstanceType': { 'Fn::If': { 'Fn::If': ['isPrimary', 't3.2xlarge', 't3.xlarge'] } } } } } }) template = Template('test.yaml', temp_obj) # Gets no condition names when it isn't a valid list self.assertEqual( template.get_conditions_from_path( template.template, ['Resources', 'AMIIDLookup', 'Properties', 'Role', 'Fn::If', 1, 'Fn::GetAtt', ['LambdaExecutionRole', 'Arn']] ), {} ) # Gets no condition names when it isn't really a list self.assertEqual( template.get_conditions_from_path( template.template, ['Resources', 'myInstance4', 'Properties', 'InstanceType', 'Fn::If', 'Fn::If', 0] ), {} )
def setUp(self): """ SetUp template object""" filename = 'test/fixtures/templates/good/generic.yaml' template = self.load_template(filename) self.template = Template(filename, template) self.resource_names = [ 'IamPipeline', 'RootInstanceProfile', 'RolePolicies', 'MyEC2Instance', 'RootRole', 'mySnsTopic', 'MyEC2Instance1', 'ElasticLoadBalancer' ] self.parameter_names = [ 'WebServerPort', 'Package', 'Package1', 'pIops' ]
def test_get_object_without_nested_conditions_ref(self): """ Test Getting condition names in an object/list """ template = { 'Resources': { 'Test': { 'Ref': 'AWS::NoValue' } } } template = Template('test.yaml', template) results = template.get_object_without_nested_conditions( template.template.get('Resources', {}).get('Test', {}), ['Resources', 'Test'] ) self.assertEqual(results, []) results = template.get_object_without_nested_conditions( template.template.get('Resources', {}), ['Resources'] ) self.assertEqual(results, [{'Object': {'Test': {'Ref': 'AWS::NoValue'}}, 'Scenario': None}])
def test_get_object_without_conditions(self): """ Test Getting condition names in an object/list """ template = cfnlint.helpers.convert_dict({ 'Conditions': { 'useAmiId': {'Fn::Not': [{'Fn::Equals': [{'Ref': 'myAmiId'}, '']}]} }, 'Resources': { 'myInstance': { 'Type': 'AWS::EC2::Instance', 'Properties': { 'ImageId': {'Fn::If': ['useAmiId', {'Ref': 'myAmiId'}, {'Ref': 'AWS::NoValue'}]}, 'LaunchConfiguration': {'Fn::If': ['useAmiId', {'Ref': 'AWS::NoValue'}, {'Ref': 'LaunchConfiguration'}]} } } } }) template = Template('test.yaml', template) results = template.get_object_without_conditions( template.template.get('Resources', {}).get('myInstance', {}).get('Properties', {}) ) for result in results: if result['Scenario'] == {'useAmiId': True}: self.assertDictEqual( result['Object'], { 'ImageId': {'Ref': 'myAmiId'} } ) elif result['Scenario'] == {'useAmiId': False}: self.assertDictEqual( result['Object'], { 'LaunchConfiguration': {'Ref': 'LaunchConfiguration'} } )
def test_get_directives(self): """ Test getting directives from a template """ template_yaml = { 'Resources': { 'Type': 'AWS::S3::Bucket', 'myBucket': { 'Properties': { 'BucketName': "bucket_test" }, 'Type': 'AWS::S3::Bucket' }, 'myBucket1': { 'Metadata': { 'cfn-lint': { 'config': { 'ignore_checks': [ 'E3012', 'I1001' ] } } }, 'Properties': {}, 'Type': 'AWS::S3::Bucket' }, 'myBucket2': { 'Metadata': { 'cfn-lint': { 'config': { 'ignore_checks': [ 'E3012', ] } } }, 'Properties': {}, 'Type': 'AWS::S3::Bucket' } } } template = Template( 'test.yaml', cfnlint.decode.cfn_yaml.loads( json.dumps( template_yaml, sort_keys=True, indent=4, separators=(',', ': ') ) ) ) directives = template.get_directives() expected_result = { 'E3012': [ {'end': (23, 10), 'start': (10, 9)}, {'end': (36, 10), 'start': (24, 9)} ], 'I1001': [ {'end': (23, 10), 'start': (10, 9)} ] } self.assertEqual(len(expected_result), len(directives)) for key, items in directives.items(): self.assertIn(key, expected_result) if key in expected_result: self.assertEqualListOfDicts(items, expected_result.get(key))
def test_get_condition_scenarios_below_path(self): """ Test Getting condition names in an object/list """ template = { 'Parameters': { 'Environment': { 'Type': 'String' } }, 'Conditions': { 'isPrimaryRegion': {'Fn::Equals': [{'Ref': 'AWS::Region'}, 'us-east-1']}, 'isProduction': {'Fn::Equals': [{'Ref': 'Environment'}, 'prod']}, }, 'Resources': { 'Role': { 'Type': 'AWS::IAM::Role', 'Properties': { 'AssumeRolePolicyDocument': { 'Version': '2012-10-17', 'Statement': [ { 'Sid': '', 'Action': 'sts:AssumeRole', 'Effect': 'Allow', 'Principal': { 'AWS': { 'Fn::If': [ 'isProduction', { 'Fn::Sub': [ '{account}', { 'account': { 'Fn::If': [ 'isPrimaryRegion', '123456789012', 'ABCDEFGHIJKL' ] } } ] }, '210987654321' ] } } } ] }, 'ManagedPolicyArns': [ 'arn:aws:iam::aws:policy/AdministratorAccess' ], 'Path': '/' } } } } template = Template('test.yaml', template) results = template.get_condition_scenarios_below_path( ['Resources', 'Role', 'Properties', 'AssumeRolePolicyDocument'] ) self.assertEqualListOfDicts( results, [{'isProduction': True}, {'isProduction': False}] ) results = template.get_condition_scenarios_below_path( ['Resources', 'Role', 'Properties', 'AssumeRolePolicyDocument'], True ) self.assertEqualListOfDicts( results, [ {'isPrimaryRegion': False, 'isProduction': False}, {'isPrimaryRegion': False, 'isProduction': True}, {'isPrimaryRegion': True, 'isProduction': False}, {'isPrimaryRegion': True, 'isProduction': True}, ] )
def test_get_object_without_nested_conditions_iam(self): """ Test Getting condition names in an object/list """ template = { 'Conditions': { 'isProduction': {'Fn::Equals': [{'Ref': 'myEnvironment'}, 'prod']}, 'isDevelopment': {'Fn::Equals': [{'Ref': 'myEnvironment'}, 'dev']} }, 'Resources': { 'Role': { 'Type': 'AWS::IAM::Role', 'Properties': { 'AssumeRolePolicyDocument': { 'Version': '2012-10-17', 'Statement': [ { 'Sid': '', 'Action': 'sts:AssumeRole', 'Effect': 'Allow', 'Principal': { 'AWS': { 'Fn::If': [ 'isProduction', '123456789012', '210987654321' ] } } } ] }, 'ManagedPolicyArns': [ 'arn:aws:iam::aws:policy/AdministratorAccess' ], 'Path': '/' } } } } template = Template('test.yaml', template) results = template.get_object_without_nested_conditions( template.template.get('Resources', {}).get('Role', {}).get( 'Properties', {}).get('AssumeRolePolicyDocument', {}), ['Resources', 'Role', 'Properties', 'AssumeRolePolicyDocument'] ) self.assertEqual(len(results), 2) for result in results: if not result['Scenario']['isProduction']: self.assertDictEqual( result['Object'], { 'Version': '2012-10-17', 'Statement': [ { 'Sid': '', 'Action': 'sts:AssumeRole', 'Effect': 'Allow', 'Principal': { 'AWS': '210987654321' } } ] } ) if result['Scenario']['isProduction']: self.assertDictEqual( result['Object'], { 'Version': '2012-10-17', 'Statement': [ { 'Sid': '', 'Action': 'sts:AssumeRole', 'Effect': 'Allow', 'Principal': { 'AWS': '123456789012' } } ] } )
def test_get_object_without_conditions_for_bad_formats(self): """ Test Getting condition names in an object/list """ template = { 'Conditions': { 'CreateAppVolume': {'Fn::Equals': [{'Ref': 'CreateVolums'}, 'true']} }, 'Resources': { 'myInstance': { 'Type': 'AWS::EC2::Instance', 'Properties': { 'ImageId': 'ami-123456', 'BlockDeviceMappings': { 'Fn::If': [ 'CreateAppVolume', { 'Ref': 'AWS::NoValue' } ] } } }, 'myInstance1': { 'Type': 'AWS::EC2::Instance', 'Properties': { 'ImageId': 'ami-123456', 'BlockDeviceMappings': { 'Fn::If': [ 'CreateAppVolume' ] } } } } } template = Template('test.yaml', template) results = template.get_object_without_conditions( template.template.get('Resources').get('myInstance').get( 'Properties').get('BlockDeviceMappings') ) # There is no False here but it still passes the 1st item back self.assertEqual( results, [ { 'Object': {'Fn::If': ['CreateAppVolume', {'Ref': 'AWS::NoValue'}]}, 'Scenario': None } ] ) results = template.get_object_without_conditions( template.template.get('Resources').get('myInstance1').get( 'Properties').get('BlockDeviceMappings') ) # There is no False here but it still passes the 1st item back self.assertEqual( results, [{'Object': {'Fn::If': ['CreateAppVolume']}, 'Scenario': None}] )
def test_get_conditions_scenarios_from_object(self): """ Test Getting condition names in an object/list """ template = { 'Conditions': { 'isProduction': {'Fn::Equals': [{'Ref': 'myEnvironment'}, 'Prod']}, 'isPrimary': {'Fn::Equals': ['True', {'Fn::FindInMap': ['location', {'Ref': 'AWS::Region'}, 'primary']}]}, 'isPrimaryAndProduction': {'Fn::And': [{'Condition': 'isProduction'}, {'Condition': 'isPrimary'}]}, 'isDevelopment': {'Fn::Equals': [{'Ref': 'myEnvironment'}, 'Dev']} }, 'Resources': { 'myInstance1': { 'Type': 'AWS::EC2::Instance', 'Properties': { 'Fn::If': [ 'isPrimaryAndProduction', { 'ImageId': 'ami-1234567', 'InstanceType': 't2.medium' }, { 'Fn::If': [ 'isDevelopment', { 'ImageId': 'ami-abcdefg', 'InstanceType': 't2.xlarge' }, { 'ImageId': 'ami-123abcd', 'InstanceType': 'm3.medium' } ] } ] } }, 'myInstance2': { 'Type': 'AWS::EC2::Instance', 'Properties': { 'ImageId': { 'Fn::If': ['isProduction', 'ami-123456', 'ami-abcdef'] }, 'InstanceType': { 'Fn::If': [ 'isPrimaryAndProduction', { 'Fn::If': ['isPrimary', 't3.2xlarge', 't3.xlarge'] }, 't3.medium' ] } } } } } template = Template('test.yaml', template) # includes nested IFs self.assertEqualListOfDicts( template.get_conditions_scenarios_from_object( template.template.get('Resources', {}).get('myInstance2', {}).get('Properties', {}) ), [ {'isPrimary': True, 'isProduction': True, 'isPrimaryAndProduction': True}, {'isPrimary': True, 'isProduction': False, 'isPrimaryAndProduction': False}, {'isPrimary': False, 'isProduction': True, 'isPrimaryAndProduction': False}, {'isPrimary': False, 'isProduction': False, 'isPrimaryAndProduction': False} ] ) self.assertEqualListOfDicts( template.get_conditions_scenarios_from_object( template.template.get('Resources', {}).get('myInstance1', {}).get('Properties', {}) ), [ {'isPrimaryAndProduction': True, 'isDevelopment': False}, {'isPrimaryAndProduction': False, 'isDevelopment': True}, {'isPrimaryAndProduction': False, 'isDevelopment': False}, ] )
def test_get_conditions_from_path(self): """ Test is resource available """ temp_obj = cfnlint.helpers.convert_dict({ 'Resources': { 'AMIIDLookup': { 'Type': 'AWS::Lambda::Function', 'Properties': { 'Role': { 'Fn::If': ['isPrimary', {'Fn::GetAtt': 'LambdaExecutionRole.Arn'}, {'Ref': 'AWS::NoValue'}] } } }, 'InstanceProfile': { 'Condition': 'isPrimaryAndProduction', 'Type': 'AWS::IAM::InstanceProfile', 'Properties': { 'Path': '/', 'Roles': [{'Ref': 'LambdaExecutionRole'}] } } }, 'Outputs': { 'lambdaArn': { 'Condition': 'isPrimary', 'Value': {'Fn::GetAtt': 'LambdaExecutionRole.Arn'} } } }) template = Template('test.yaml', temp_obj) # Gets the condition when in the middle of the Path self.assertEqual( template.get_conditions_from_path( template.template, ['Resources', 'AMIIDLookup', 'Properties', 'Role', 'Fn::If', 1, 'Fn::GetAtt', ['LambdaExecutionRole', 'Arn']] ), {'isPrimary': {True}} ) self.assertEqual( template.get_conditions_from_path( template.template, ['Resources', 'AMIIDLookup', 'Properties', 'Role', 'Fn::If'] ), {'isPrimary': {True, False}} ) self.assertEqual( template.get_conditions_from_path( template.template, ['Outputs', 'lambdaArn', 'Value', 'Fn::GetAtt', ['LambdaExecutionRole', 'Arn']] ), {'isPrimary': {True}} ) self.assertEqual( template.get_conditions_from_path( template.template, ['Resources', 'InstanceProfile', 'Properties', 'Roles', 0, 'Ref', 'LambdaExecutionRole'] ), {'isPrimaryAndProduction': {True}} ) self.assertEqual( template.get_conditions_from_path( template.template, ['Resources', 'AMIIDLookup', 'Properties', 'Handler', 'Ref', 'LambdaHandler'] ), {} )
def test_is_resource_not_available(self): """ Test is resource available """ temp_obj = cfnlint.helpers.convert_dict({ 'Mappings': {'location': {'us-east-1': {'primary': 'True'}}}, 'Conditions': { 'isPrimary': {'Fn::Equals': ['True', {'Fn::FindInMap': ['location', {'Ref': 'AWS::Region'}, 'primary']}]}, }, 'Resources': { 'LambdaExecutionRole': { 'Condition': 'isPrimary', 'Type': 'AWS::IAM::Role', 'Properties': {} }, 'AMIIDLookup': { 'Type': 'AWS::Lambda::Function', 'Properties': { 'Handler': 'index.handler', 'Role': {'Fn::GetAtt': 'LambdaExecutionRole.Arn'} } } }, 'Outputs': { 'lambdaArn': { 'Value': {'Fn::GetAtt': 'LambdaExecutionRole.Arn'} } } }) template = Template('test.yaml', temp_obj) self.assertEqual( template.is_resource_available( ['Resources', 'AMIIDLookup', 'Properties', 'Role', 'Fn::If', 1, 'Fn::GetAtt', ['LambdaExecutionRole', 'Arn']], 'LambdaExecutionRole' ), [{'isPrimary': False}] ) self.assertEqual( template.is_resource_available( ['Outputs', 'lambdaArn', 'Value', 'Fn::GetAtt', ['LambdaExecutionRole', 'Arn']], 'LambdaExecutionRole' ), [{'isPrimary': False}] ) # Doesn't fail when the Path doesn't exist. Still shows an error based on the fact there # are no conditions in the path that is workable self.assertEqual( template.is_resource_available( ['Resources', 'AMIIDLookup', 'Properties', 'BadProperty', 'Fn::If', 1, 'Fn::GetAtt', ['LambdaExecutionRole', 'Arn']], 'LambdaExecutionRole' ), [{'isPrimary': False}] ) # Gives appropriate response when there is no condition in path self.assertEqual( template.is_resource_available( ['Resources', 'AMIIDLookup', 'Properties', 'Handler'], 'LambdaExecutionRole' ), [{'isPrimary': False}] )