#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

import os

from toscaparser.common import exception
from toscaparser.imports import ImportsLoader
from toscaparser.nodetemplate import NodeTemplate
from toscaparser.parameters import Input
from toscaparser.parameters import Output
from toscaparser.policy import Policy
from toscaparser.relationship_template import RelationshipTemplate
from toscaparser.repositories import Repository
from toscaparser.reservation import Reservation
from toscaparser.tests.base import TestCase
from toscaparser.topology_template import TopologyTemplate
from toscaparser.tosca_template import ToscaTemplate
from toscaparser.triggers import Triggers
from toscaparser.utils.gettextutils import _
import toscaparser.utils.yamlparser


class ToscaTemplateValidationTest(TestCase):

    def test_well_defined_template(self):
        tpl_path = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/tosca_single_instance_wordpress.yaml")
        params = {'db_name': 'my_wordpress', 'db_user': 'my_db_user',
                  'db_root_pwd': '12345678'}
        self.assertIsNotNone(ToscaTemplate(tpl_path, params))

    def test_custom_interface_allowed(self):
        tpl_path = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/interfaces/test_custom_interface_in_template.yaml")
        self.assertIsNotNone(ToscaTemplate(tpl_path))

    def test_custom_interface_invalid_operation(self):
        tpl_path = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/interfaces/test_custom_interface_invalid_operation.yaml")
        self.assertRaises(exception.ValidationError,
                          ToscaTemplate, tpl_path)
        exception.ExceptionCollector.assertExceptionMessage(
            exception.UnknownFieldError,
            _('"interfaces" of template "customInterfaceTest" '
              'contains unknown field "CustomOp4". '
              'Refer to the definition to verify valid values.'))

    def test_first_level_sections(self):
        tpl_path = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/test_tosca_top_level_error1.yaml")
        self.assertRaises(exception.ValidationError, ToscaTemplate, tpl_path)
        exception.ExceptionCollector.assertExceptionMessage(
            exception.MissingRequiredFieldError,
            _('Template is missing required field '
              '"tosca_definitions_version".'))

        tpl_path = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/test_tosca_top_level_error2.yaml")
        self.assertRaises(exception.ValidationError, ToscaTemplate, tpl_path)
        exception.ExceptionCollector.assertExceptionMessage(
            exception.UnknownFieldError,
            _('Template contains unknown field "node_template". Refer to the '
              'definition to verify valid values.'))

    def test_template_with_imports_validation(self):
        tpl_path = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/tosca_imports_validation.yaml")
        self.assertRaises(exception.ValidationError, ToscaTemplate, tpl_path)
        exception.ExceptionCollector.assertExceptionMessage(
            exception.UnknownFieldError,
            _('Template custom_types/imported_sample.yaml contains unknown '
              'field "descriptions". Refer to the definition'
              ' to verify valid values.'))
        exception.ExceptionCollector.assertExceptionMessage(
            exception.UnknownFieldError,
            _('Template custom_types/imported_sample.yaml contains unknown '
              'field "node_typess". Refer to the definition to '
              'verify valid values.'))
        exception.ExceptionCollector.assertExceptionMessage(
            exception.UnknownFieldError,
            _('Template custom_types/imported_sample.yaml contains unknown '
              'field "tosca1_definitions_version". Refer to the definition'
              ' to verify valid values.'))
        versions = '", "'.join(ToscaTemplate.VALID_TEMPLATE_VERSIONS)
        exception.ExceptionCollector.assertExceptionMessage(
            exception.InvalidTemplateVersion,
            _('The template version "tosca_simple_yaml_1_10 in '
              'custom_types/imported_sample.yaml" is invalid. '
              'Valid versions are "%s".') % versions)
        exception.ExceptionCollector.assertExceptionMessage(
            exception.UnknownFieldError,
            _('Template custom_types/imported_sample.yaml contains unknown '
              'field "policy_types1". Refer to the definition to '
              'verify valid values.'))
        exception.ExceptionCollector.assertExceptionMessage(
            exception.UnknownFieldError,
            _('Nodetype"tosca.nodes.SoftwareComponent.Logstash" contains '
              'unknown field "capabilities1". Refer to the definition '
              'to verify valid values.'))
        exception.ExceptionCollector.assertExceptionMessage(
            exception.UnknownFieldError,
            _('Policy "mycompany.mytypes.myScalingPolicy" contains unknown '
              'field "derived1_from". Refer to the definition to '
              'verify valid values.'))
        exception.ExceptionCollector.assertExceptionMessage(
            exception.UnknownFieldError,
            _('Relationshiptype "test.relation.connects" contains unknown '
              'field "derived_from4". Refer to the definition to '
              'verify valid values.'))

    def test_getoperation_IncorrectValue(self):
        # test case 1
        tpl_snippet = '''
        node_templates:
             front_end:
               type: tosca.nodes.Compute
               interfaces:
                 Standard:
                   create:
                     implementation: scripts/frontend/create.sh
                   configure:
                     implementation: scripts/frontend/configure.sh
                     inputs:
                       data_dir: {get_operation_output: [front_end,Standard1,
                                                            create,data_dir]}
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        err = self.assertRaises(ValueError,
                                TopologyTemplate, tpl, None)
        expectedmessage = _('Node or relationship template "front_end" '
                            'has not interface "Standard1" '
                            'or operation "create".')
        self.assertEqual(expectedmessage, err.__str__())
        # test case 2
        tpl_snippet2 = '''
        node_templates:
             front_end:
               type: tosca.nodes.Compute
               interfaces:
                 Standard:
                   create:
                     implementation: scripts/frontend/create.sh
                   configure:
                     implementation: scripts/frontend/configure.sh
                     inputs:
                       data_dir: {get_operation_output: [front_end1,Standard,
                                                            create,data_dir]}
        '''
        tpl2 = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet2))
        err2 = self.assertRaises(KeyError,
                                 TopologyTemplate, tpl2, None)
        expectedmessage2 = _('\'Node or relationship template "front_end1" '
                             'was not found.\'')
        self.assertEqual(expectedmessage2, err2.__str__())
        # test case 3
        tpl_snippet3 = '''
        node_templates:
             front_end:
               type: tosca.nodes.Compute
               interfaces:
                 Standard:
                   create:
                     implementation: scripts/frontend/create.sh
                   configure:
                     implementation: scripts/frontend/configure.sh
                     inputs:
                       data_dir: {get_operation_output: [front_end,Standard,
                                                      get_target,data_dir]}
        '''
        tpl3 = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet3))
        err3 = self.assertRaises(ValueError,
                                 TopologyTemplate, tpl3, None)
        expectedmessage3 = _('Enter an operation of Standard interface')
        self.assertEqual(expectedmessage3, err3.__str__())
        # test case 4
        tpl_snippet4 = '''
        node_templates:
             front_end:
               type: tosca.nodes.Compute
               interfaces:
                 Standard:
                   create:
                     implementation: scripts/frontend/create.sh
                   configure:
                     implementation: scripts/frontend/configure.sh
                     inputs:
                       data_dir: {get_operation_output: [front_end,Configure,
                                                        create,data_dir]}
        '''
        tpl4 = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet4))
        err4 = self.assertRaises(ValueError,
                                 TopologyTemplate, tpl4, None)
        expectedmessage4 = _('Enter an operation of Configure interface')
        self.assertEqual(expectedmessage4, err4.__str__())
        # test case 5
        tpl_snippet5 = '''
        node_templates:
             front_end:
               type: tosca.nodes.Compute
               interfaces:
                 Standard:
                   create:
                     implementation: scripts/frontend/create.sh
                   configure:
                     implementation: scripts/frontend/configure.sh
                     inputs:
                       data_dir: {get_operation_output: [front_end,Standard,
                                                                    create]}
        '''
        tpl5 = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet5))
        err5 = self.assertRaises(ValueError,
                                 TopologyTemplate, tpl5, None)
        expectedmessage5 = _('Illegal arguments for function'
                             ' "get_operation_output".'
                             ' Expected arguments: "template_name",'
                             '"interface_name",'
                             '"operation_name","output_variable_name"')
        self.assertEqual(expectedmessage5, err5.__str__())

    def test_unsupported_type(self):
        tpl_snippet = '''
        node_templates:
          invalid_type:
            type: tosca.test.invalidtype
            properties:
              size: { get_input: storage_size }
              snapshot_id: { get_input: storage_snapshot_id }
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        err = self.assertRaises(exception.UnsupportedTypeError,
                                TopologyTemplate, tpl, None)
        expectedmessage = _('Type "tosca.test.invalidtype" is valid'
                            ' TOSCA type but not supported at this time.')
        self.assertEqual(expectedmessage, err.__str__())

    def test_inputs(self):
        tpl_snippet1 = '''
        inputs:
          cpus:
            type: integer
            description: Number of CPUs for the server.
            constraint:
              - valid_values: [ 1, 2, 4 ]
            required: yes
            status: supported
        '''
        tpl_snippet2 = '''
        inputs:
          cpus:
            type: integer
            description: Number of CPUs for the server.
            constraints:
              - valid_values: [ 1, 2, 4 ]
            required: yes
            status: supported
        '''
        tpl_snippet3 = '''
        inputs:
          some_list:
            type: list
            description: List of items
            entry_schema:
              type: string
            default: []
        '''
        inputs1 = (toscaparser.utils.yamlparser.
                   simple_parse(tpl_snippet1)['inputs'])
        name1, attrs1 = list(inputs1.items())[0]
        inputs2 = (toscaparser.utils.yamlparser.
                   simple_parse(tpl_snippet2)['inputs'])
        name2, attrs2 = list(inputs2.items())[0]
        try:
            Input(name1, attrs1)
        except Exception as err:
            self.assertEqual(_('Input "cpus" contains unknown field '
                               '"constraint". Refer to the definition to '
                               'verify valid values.'),
                             err.__str__())
        input2 = Input(name2, attrs2)
        self.assertTrue(input2.required)
        toscaparser.utils.yamlparser.simple_parse(tpl_snippet3)['inputs']

    def _imports_content_test(self, tpl_snippet, path, custom_type_def):
        imports = (toscaparser.utils.yamlparser.
                   simple_parse(tpl_snippet)['imports'])
        loader = ImportsLoader(imports, path, custom_type_def)
        return loader.get_custom_defs()

    def test_imports_without_templates(self):
        tpl_snippet = '''
        imports:
          # omitted here for brevity
        '''
        path = 'toscaparser/tests/data/tosca_elk.yaml'
        errormsg = _('"imports" keyname is defined without including '
                     'templates.')
        err = self.assertRaises(exception.ValidationError,
                                self._imports_content_test,
                                tpl_snippet,
                                path,
                                "node_types")
        self.assertEqual(errormsg, err.__str__())

    def test_imports_with_name_without_templates(self):
        tpl_snippet = '''
        imports:
          - some_definitions:
        '''
        path = 'toscaparser/tests/data/tosca_elk.yaml'
        errormsg = _('A template file name is not provided with import '
                     'definition "some_definitions".')
        err = self.assertRaises(exception.ValidationError,
                                self._imports_content_test,
                                tpl_snippet, path, None)
        self.assertEqual(errormsg, err.__str__())

    def test_imports_without_import_name(self):
        tpl_snippet = '''
        imports:
          - custom_types/paypalpizzastore_nodejs_app.yaml
          - https://raw.githubusercontent.com/openstack/\
tosca-parser/master/toscaparser/tests/data/custom_types/wordpress.yaml
        '''
        path = 'toscaparser/tests/data/tosca_elk.yaml'
        custom_defs = self._imports_content_test(tpl_snippet,
                                                 path,
                                                 "node_types")
        self.assertTrue(custom_defs)

    def test_imports_wth_import_name(self):
        tpl_snippet = '''
        imports:
          - some_definitions: custom_types/paypalpizzastore_nodejs_app.yaml
          - more_definitions:
              file: 'https://raw.githubusercontent.com/openstack/tosca-parser\
/master/toscaparser/tests/data/custom_types/wordpress.yaml'
              namespace_prefix: single_instance_wordpress
        '''
        path = 'toscaparser/tests/data/tosca_elk.yaml'
        custom_defs = self._imports_content_test(tpl_snippet,
                                                 path,
                                                 "node_types")
        self.assertTrue(custom_defs.get("single_instance_wordpress.tosca."
                                        "nodes.WebApplication.WordPress"))

    def test_imports_wth_namespace_prefix(self):
        tpl_snippet = '''
        imports:
          - more_definitions:
              file: custom_types/nested_rsyslog.yaml
              namespace_prefix: testprefix
        '''
        path = 'toscaparser/tests/data/tosca_elk.yaml'
        custom_defs = self._imports_content_test(tpl_snippet,
                                                 path,
                                                 "node_types")
        self.assertTrue(custom_defs.get("testprefix.Rsyslog"))

    def test_imports_with_no_main_template(self):
        tpl_snippet = '''
        imports:
          - some_definitions: https://raw.githubusercontent.com/openstack/\
tosca-parser/master/toscaparser/tests/data/custom_types/wordpress.yaml
          - some_definitions:
              file: my_defns/my_typesdefs_n.yaml
        '''
        errormsg = _('Input tosca template is not provided.')
        err = self.assertRaises(exception.ValidationError,
                                self._imports_content_test,
                                tpl_snippet, None, None)
        self.assertEqual(errormsg, err.__str__())

    def test_imports_duplicate_name(self):
        tpl_snippet = '''
        imports:
          - some_definitions: https://raw.githubusercontent.com/openstack/\
tosca-parser/master/toscaparser/tests/data/custom_types/wordpress.yaml
          - some_definitions:
              file: my_defns/my_typesdefs_n.yaml
        '''
        errormsg = _('Duplicate import name "some_definitions" was found.')
        path = 'toscaparser/tests/data/tosca_elk.yaml'
        err = self.assertRaises(exception.ValidationError,
                                self._imports_content_test,
                                tpl_snippet, path, None)
        self.assertEqual(errormsg, err.__str__())

    def test_imports_missing_req_field_in_def(self):
        tpl_snippet = '''
        imports:
          - more_definitions:
              file1: my_defns/my_typesdefs_n.yaml
              repository: my_company_repo
              namespace_uri: http://mycompany.com/ns/tosca/2.0
              namespace_prefix: mycompany
        '''
        errormsg = _('Import of template "more_definitions" is missing '
                     'required field "file".')
        path = 'toscaparser/tests/data/tosca_elk.yaml'
        err = self.assertRaises(exception.MissingRequiredFieldError,
                                self._imports_content_test,
                                tpl_snippet, path, None)
        self.assertEqual(errormsg, err.__str__())

    def test_imports_file_with_uri(self):
        tpl_snippet = '''
        imports:
          - more_definitions:
              file: https://raw.githubusercontent.com/openstack/\
tosca-parser/master/toscaparser/tests/data/custom_types/wordpress.yaml
        '''
        path = 'https://raw.githubusercontent.com/openstack/\
tosca-parser/master/toscaparser/tests/data/\
tosca_single_instance_wordpress_with_url_import.yaml'
        custom_defs = self._imports_content_test(tpl_snippet,
                                                 path,
                                                 "node_types")
        self.assertTrue(custom_defs.get("tosca.nodes."
                                        "WebApplication.WordPress"))

    def test_imports_file_namespace_fields(self):
        tpl_snippet = '''
        imports:
          - more_definitions:
             file: https://raw.githubusercontent.com/openstack/\
heat-translator/master/translator/tests/data/custom_types/wordpress.yaml
             namespace_prefix: mycompany
             namespace_uri: http://docs.oasis-open.org/tosca/ns/simple/yaml/1.0
        '''
        path = 'toscaparser/tests/data/tosca_elk.yaml'
        custom_defs = self._imports_content_test(tpl_snippet,
                                                 path,
                                                 "node_types")
        self.assertTrue(custom_defs.get("mycompany.tosca.nodes."
                                        "WebApplication.WordPress"))

    def test_imports_file_with_suffix_yml(self):
        tpl_snippet = '''
        imports:
        - custom_types/wordpress.yml
        '''
        path = 'toscaparser/tests/data/tosca_elk.yaml'
        custom_defs = self._imports_content_test(tpl_snippet,
                                                 path,
                                                 "node_types")
        self.assertTrue(custom_defs.get("tosca.nodes."
                                        "WebApplication.WordPress"))

    def test_import_error_file_uri(self):
        tpl_snippet = '''
        imports:
          - more_definitions:
             file: mycompany.com/ns/tosca/2.0/toscaparser/tests/data\
/tosca_elk.yaml
             namespace_prefix: mycompany
             namespace_uri: http://docs.oasis-open.org/tosca/ns/simple/yaml/1.0
        '''
        path = 'toscaparser/tests/data/tosca_elk.yaml'
        self.assertRaises(ImportError,
                          self._imports_content_test,
                          tpl_snippet, path, None)

    def test_import_single_line_error(self):
        tpl_snippet = '''
        imports:
          - some_definitions: abc.com/tests/data/tosca_elk.yaml
        '''
        errormsg = _('Import "abc.com/tests/data/tosca_elk.yaml" is not '
                     'valid.')
        path = 'toscaparser/tests/data/tosca_elk.yaml'
        err = self.assertRaises(ImportError,
                                self._imports_content_test,
                                tpl_snippet, path, None)
        self.assertEqual(errormsg, err.__str__())

    def test_outputs(self):
        tpl_snippet = '''
        outputs:
          server_address:
            description: IP address of server instance.
            values: { get_property: [server, private_address] }
        '''
        outputs = (toscaparser.utils.yamlparser.
                   simple_parse(tpl_snippet)['outputs'])
        name, attrs = list(outputs.items())[0]
        output = Output(name, attrs)
        try:
            output.validate()
        except Exception as err:
            self.assertIsInstance(err, exception.MissingRequiredFieldError)
            self.assertEqual(_('Output "server_address" is missing required '
                               'field "value".'), err.__str__())

        tpl_snippet = '''
        outputs:
          server_address:
            descriptions: IP address of server instance.
            value: { get_property: [server, private_address] }
        '''
        outputs = (toscaparser.utils.yamlparser.
                   simple_parse(tpl_snippet)['outputs'])
        name, attrs = list(outputs.items())[0]
        output = Output(name, attrs)
        try:
            output.validate()
        except Exception as err:
            self.assertIsInstance(err, exception.UnknownFieldError)
            self.assertEqual(_('Output "server_address" contains unknown '
                               'field "descriptions". Refer to the definition '
                               'to verify valid values.'),
                             err.__str__())

    def _repo_content(self, path):
        repositories = path['repositories']
        reposit = []
        for name, val in repositories.items():
            reposits = Repository(name, val)
            reposit.append(reposits)
        return reposit

    def test_repositories(self):
        tpl_snippet = '''
        repositories:
           repo_code0: https://raw.githubusercontent.com/nandinivemula/intern
           repo_code1:
              description: My project's code Repository in github usercontent.
              url: https://github.com/nandinivemula/intern
              credential:
                 user: nandini
                 password: tcs@12345
           repo_code2:
              description: My Project's code Repository in github.
              url: https://github.com/nandinivemula/intern
              credential:
                 user: xyzw
                 password: xyz@123
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        repoobject = self._repo_content(tpl)
        actualrepo_names = []
        for repo in repoobject:
            repos = repo.name
            actualrepo_names.append(repos)
        reposname = list(tpl.values())
        reposnames = reposname[0]
        expected_reponames = list(reposnames.keys())
        self.assertEqual(expected_reponames, actualrepo_names)

    def test_repositories_with_missing_required_field(self):
        tpl_snippet = '''
        repositories:
           repo_code0: https://raw.githubusercontent.com/nandinivemula/intern
           repo_code1:
              description: My project's code Repository in github usercontent.
              credential:
                 user: nandini
                 password: tcs@12345
           repo_code2:
              description: My Project's code Repository in github.
              url: https://github.com/nandinivemula/intern
              credential:
                 user: xyzw
                 password: xyz@123
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        err = self.assertRaises(exception.MissingRequiredFieldError,
                                self._repo_content, tpl)
        expectedmessage = _('Repository "repo_code1" is missing '
                            'required field "url".')
        self.assertEqual(expectedmessage, err.__str__())

    def test_repositories_with_unknown_field(self):
        tpl_snippet = '''
        repositories:
           repo_code0: https://raw.githubusercontent.com/nandinivemula/intern
           repo_code1:
              description: My project's code Repository in github usercontent.
              url: https://github.com/nandinivemula/intern
              credential:
                 user: nandini
                 password: tcs@12345
           repo_code2:
              descripton: My Project's code Repository in github.
              url: https://github.com/nandinivemula/intern
              credential:
                 user: xyzw
                 password: xyz@123
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        err = self.assertRaises(exception.UnknownFieldError,
                                self._repo_content, tpl)
        expectedmessage = _('repositories "repo_code2" contains unknown field'
                            ' "descripton". Refer to the definition to verify'
                            ' valid values.')
        self.assertEqual(expectedmessage, err.__str__())

    def test_repositories_with_invalid_url(self):
        tpl_snippet = '''
        repositories:
           repo_code0: https://raw.githubusercontent.com/nandinivemula/intern
           repo_code1:
              description: My project's code Repository in github usercontent.
              url: h
              credential:
                 user: nandini
                 password: tcs@12345
           repo_code2:
              description: My Project's code Repository in github.
              url: https://github.com/nandinivemula/intern
              credential:
                 user: xyzw
                 password: xyz@123
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        err = self.assertRaises(exception.URLException,
                                self._repo_content, tpl)
        expectedmessage = _('repsositories "repo_code1" Invalid Url')
        self.assertEqual(expectedmessage, err.__str__())

    def test_groups(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            requirements:
              - log_endpoint:
                  capability: log_endpoint

          mysql_dbms:
            type: tosca.nodes.DBMS
            properties:
              root_password: aaa
              port: 3376

        groups:
          webserver_group:
            type: tosca.groups.Root
            members: [ server, mysql_dbms ]
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        TopologyTemplate(tpl, None)

    def test_groups_with_missing_required_field(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            requirements:
              - log_endpoint:
                  capability: log_endpoint

          mysql_dbms:
            type: tosca.nodes.DBMS
            properties:
              root_password: aaa
              port: 3376

        groups:
          webserver_group:
              members: ['server', 'mysql_dbms']
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        err = self.assertRaises(exception.MissingRequiredFieldError,
                                TopologyTemplate, tpl, None)
        expectedmessage = _('Template "webserver_group" is missing '
                            'required field "type".')
        self.assertEqual(expectedmessage, err.__str__())

    def test_groups_with_unknown_target(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            requirements:
              - log_endpoint:
                  capability: log_endpoint

          mysql_dbms:
            type: tosca.nodes.DBMS
            properties:
              root_password: aaa
              port: 3376

        groups:
          webserver_group:
            type: tosca.groups.Root
            members: [ serv, mysql_dbms ]
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        expectedmessage = _('"Target member "serv" is not found in '
                            'node_templates"')
        err = self.assertRaises(exception.InvalidGroupTargetException,
                                TopologyTemplate, tpl, None)
        self.assertEqual(expectedmessage, err.__str__())

    def test_groups_with_repeated_targets(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            requirements:
              - log_endpoint:
                  capability: log_endpoint

          mysql_dbms:
            type: tosca.nodes.DBMS
            properties:
              root_password: aaa
              port: 3376

        groups:
          webserver_group:
            type: tosca.groups.Root
            members: [ server, server, mysql_dbms ]
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        expectedmessage = _('"Member nodes '
                            '"[\'server\', \'server\', \'mysql_dbms\']" '
                            'should be >= 1 and not repeated"')
        err = self.assertRaises(exception.InvalidGroupTargetException,
                                TopologyTemplate, tpl, None)
        self.assertEqual(expectedmessage, err.__str__())

    def test_groups_with_only_one_target(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            requirements:
              - log_endpoint:
                  capability: log_endpoint

          mysql_dbms:
            type: tosca.nodes.DBMS
            properties:
              root_password: aaa
              port: 3376

        groups:
          webserver_group:
            type: tosca.groups.Root
            members: []
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        expectedmessage = _('"Member nodes "[]" should be >= 1 '
                            'and not repeated"')
        err = self.assertRaises(exception.InvalidGroupTargetException,
                                TopologyTemplate, tpl, None)
        self.assertEqual(expectedmessage, err.__str__())

    def _custom_types(self):
        custom_types = {}
        def_file = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/custom_types/wordpress.yaml")
        custom_type = toscaparser.utils.yamlparser.load_yaml(def_file)
        node_types = custom_type['node_types']
        for name in node_types:
            defintion = node_types[name]
            custom_types[name] = defintion
        return custom_types

    def _custom_types_policy(self):
        custom_types = {}
        def_file = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/custom_types/custom_policy.yaml")
        custom_type = toscaparser.utils.yamlparser.load_yaml(def_file)
        policy_types = custom_type['policy_types']
        for name in policy_types:
            defintion = policy_types[name]
            custom_types[name] = defintion
        return custom_types

    def _single_node_template_content_test(self, tpl_snippet):
        nodetemplates = (toscaparser.utils.yamlparser.
                         simple_ordered_parse(tpl_snippet))['node_templates']
        name = list(nodetemplates.keys())[0]
        nodetemplate = NodeTemplate(name, nodetemplates,
                                    self._custom_types())
        nodetemplate.validate()
        nodetemplate.requirements
        nodetemplate.get_capabilities_objects()
        nodetemplate.get_properties_objects()
        nodetemplate.interfaces

    def test_node_templates(self):
        tpl_snippet = '''
        node_templates:
          server:
            capabilities:
              host:
                properties:
                  disk_size: 10
                  num_cpus: 4
                  mem_size: 4096
              os:
                properties:
                  architecture: x86_64
                  type: Linux
                  distribution: Fedora
                  version: 18.0
        '''
        expectedmessage = _('Template "server" is missing required field '
                            '"type".')
        err = self.assertRaises(
            exception.MissingRequiredFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_with_wrong_properties_keyname(self):
        """Node template keyname 'properties' given as 'propertiessss'."""
        tpl_snippet = '''
        node_templates:
          mysql_dbms:
            type: tosca.nodes.DBMS
            propertiessss:
              root_password: aaa
              port: 3376
        '''
        expectedmessage = _('Node template "mysql_dbms" contains unknown '
                            'field "propertiessss". Refer to the definition '
                            'to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_with_wrong_requirements_keyname(self):
        """Node template keyname 'requirements' given as 'requirement'."""
        tpl_snippet = '''
        node_templates:
          mysql_dbms:
            type: tosca.nodes.DBMS
            properties:
              root_password: aaa
              port: 3376
            requirement:
              - host: server
        '''
        expectedmessage = _('Node template "mysql_dbms" contains unknown '
                            'field "requirement". Refer to the definition to '
                            'verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_with_wrong_interfaces_keyname(self):
        """Node template keyname 'interfaces' given as 'interfac'."""
        tpl_snippet = '''
        node_templates:
          mysql_dbms:
            type: tosca.nodes.DBMS
            properties:
              root_password: aaa
              port: 3376
            requirements:
              - host: server
            interfac:
              Standard:
                configure: mysql_database_configure.sh
        '''
        expectedmessage = _('Node template "mysql_dbms" contains unknown '
                            'field "interfac". Refer to the definition to '
                            'verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_with_wrong_capabilities_keyname(self):
        """Node template keyname 'capabilities' given as 'capabilitiis'."""
        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Database
            properties:
              db_name: { get_input: db_name }
              db_user: { get_input: db_user }
              db_password: { get_input: db_pwd }
            capabilitiis:
              database_endpoint:
                properties:
                  port: { get_input: db_port }
        '''
        expectedmessage = _('Node template "mysql_database" contains unknown '
                            'field "capabilitiis". Refer to the definition to '
                            'verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_with_wrong_artifacts_keyname(self):
        """Node template keyname 'artifacts' given as 'artifactsss'."""
        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Database
            artifactsss:
              db_content:
                implementation: files/my_db_content.txt
                type: tosca.artifacts.File
        '''
        expectedmessage = _('Node template "mysql_database" contains unknown '
                            'field "artifactsss". Refer to the definition to '
                            'verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_with_multiple_wrong_keynames(self):
        """Node templates given with multiple wrong keynames."""
        tpl_snippet = '''
        node_templates:
          mysql_dbms:
            type: tosca.nodes.DBMS
            propertieees:
              root_password: aaa
              port: 3376
            requirements:
              - host: server
            interfacs:
              Standard:
                configure: mysql_database_configure.sh
        '''
        expectedmessage = _('Node template "mysql_dbms" contains unknown '
                            'field "propertieees". Refer to the definition to '
                            'verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Database
            properties:
              name: { get_input: db_name }
              user: { get_input: db_user }
              password: { get_input: db_pwd }
            capabilitiiiies:
              database_endpoint:
              properties:
                port: { get_input: db_port }
            requirementsss:
              - host:
                  node: mysql_dbms
            interfac:
              Standard:
                 configure: mysql_database_configure.sh

        '''
        expectedmessage = _('Node template "mysql_database" contains unknown '
                            'field "capabilitiiiies". Refer to the definition '
                            'to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_type(self):
        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Databases
            properties:
              db_name: { get_input: db_name }
              db_user: { get_input: db_user }
              db_password: { get_input: db_pwd }
            capabilities:
              database_endpoint:
                properties:
                  port: { get_input: db_port }
            requirements:
              - host: mysql_dbms
            interfaces:
              Standard:
                 configure: mysql_database_configure.sh
        '''
        expectedmessage = _('Type "tosca.nodes.Databases" is not '
                            'a valid type.')
        err = self.assertRaises(
            exception.InvalidTypeError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_requirements(self):
        tpl_snippet = '''
        node_templates:
          webserver:
            type: tosca.nodes.WebServer
            requirements:
              host: server
            interfaces:
              Standard:
                create: webserver_install.sh
                start: d.sh
        '''
        expectedmessage = _('"requirements" of template "webserver" must be '
                            'of type "list".')
        err = self.assertRaises(
            exception.TypeMismatchError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Database
            properties:
              db_name: { get_input: db_name }
              db_user: { get_input: db_user }
              db_password: { get_input: db_pwd }
            capabilities:
              database_endpoint:
                properties:
                  port: { get_input: db_port }
            requirements:
              - host: mysql_dbms
              - database_endpoint: mysql_database
            interfaces:
              Standard:
                 configure: mysql_database_configure.sh
        '''
        expectedmessage = _('"requirements" of template "mysql_database" '
                            'contains unknown field "database_endpoint". '
                            'Refer to the definition to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_requirements_with_wrong_node_keyname(self):
        """Node template requirements keyname 'node' given as 'nodes'."""
        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Database
            requirements:
              - host:
                  nodes: mysql_dbms

        '''
        expectedmessage = _('"requirements" of template "mysql_database" '
                            'contains unknown field "nodes". Refer to the '
                            'definition to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_requirements_with_wrong_capability_keyname(self):
        """Incorrect node template requirements keyname

        Node template requirements keyname 'capability' given as
        'capabilityy'.
        """
        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Database
            requirements:
              - host:
                  node: mysql_dbms
              - log_endpoint:
                  node: logstash
                  capabilityy: log_endpoint
                  relationship:
                    type: tosca.relationships.ConnectsTo

        '''
        expectedmessage = _('"requirements" of template "mysql_database" '
                            'contains unknown field "capabilityy". Refer to '
                            'the definition to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_requirements_with_wrong_relationship_keyname(self):
        """Incorrect node template requirements keyname

        Node template requirements keyname 'relationship' given as
        'relationshipppp'.
        """
        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Database
            requirements:
              - host:
                  node: mysql_dbms
              - log_endpoint:
                  node: logstash
                  capability: log_endpoint
                  relationshipppp:
                    type: tosca.relationships.ConnectsTo

        '''
        expectedmessage = _('"requirements" of template "mysql_database" '
                            'contains unknown field "relationshipppp". Refer '
                            'to the definition to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_requirements_with_wrong_occurrences_keyname(self):
        """Incorrect node template requirements keyname

        Node template requirements keyname 'occurrences' given as
        'occurences'.
        """
        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Database
            requirements:
              - host:
                  node: mysql_dbms
              - log_endpoint:
                  node: logstash
                  capability: log_endpoint
                  relationship:
                    type: tosca.relationships.ConnectsTo
                  occurences: [0, UNBOUNDED]
        '''
        expectedmessage = _('"requirements" of template "mysql_database" '
                            'contains unknown field "occurences". Refer to '
                            'the definition to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_requirements_with_multiple_wrong_keynames(self):
        """Node templates given with multiple wrong requirements keynames."""
        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Database
            requirements:
              - host:
                  node: mysql_dbms
              - log_endpoint:
                  nod: logstash
                  capabilit: log_endpoint
                  relationshipppp:
                    type: tosca.relationships.ConnectsTo

        '''
        expectedmessage = _('"requirements" of template "mysql_database" '
                            'contains unknown field "nod". Refer to the '
                            'definition to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Database
            requirements:
              - host:
                  node: mysql_dbms
              - log_endpoint:
                  node: logstash
                  capabilit: log_endpoint
                  relationshipppp:
                    type: tosca.relationships.ConnectsTo

        '''
        expectedmessage = _('"requirements" of template "mysql_database" '
                            'contains unknown field "capabilit". Refer to the '
                            'definition to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_requirements_invalid_occurrences(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            requirements:
              - log_endpoint:
                  capability: log_endpoint
                  occurrences: [0, -1]
        '''
        expectedmessage = _('Value of property "[0, -1]" is invalid.')
        err = self.assertRaises(
            exception.InvalidPropertyValueError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            requirements:
              - log_endpoint:
                  capability: log_endpoint
                  occurrences: [a, w]
        '''
        expectedmessage = _('"a" is not an integer.')
        err = self.assertRaises(
            ValueError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            requirements:
              - log_endpoint:
                  capability: log_endpoint
                  occurrences: -1
        '''
        expectedmessage = _('"-1" is not a list.')
        err = self.assertRaises(
            ValueError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            requirements:
              - log_endpoint:
                  capability: log_endpoint
                  occurrences: [5, 1]
        '''
        expectedmessage = _('Value of property "[5, 1]" is invalid.')
        err = self.assertRaises(
            exception.InvalidPropertyValueError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            requirements:
              - log_endpoint:
                  capability: log_endpoint
                  occurrences: [0, 0]
        '''
        expectedmessage = _('Value of property "[0, 0]" is invalid.')
        err = self.assertRaises(
            exception.InvalidPropertyValueError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_requirements_valid_occurrences(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            requirements:
              - log_endpoint:
                  capability: log_endpoint
                  occurrences: [2, 2]
        '''
        self._single_node_template_content_test(tpl_snippet)

    def test_node_template_capabilities(self):
        tpl_snippet = '''
        node_templates:
          mysql_database:
            type: tosca.nodes.Database
            properties:
              db_name: { get_input: db_name }
              db_user: { get_input: db_user }
              db_password: { get_input: db_pwd }
            capabilities:
              http_endpoint:
                properties:
                  port: { get_input: db_port }
            requirements:
              - host: mysql_dbms
            interfaces:
              Standard:
                 configure: mysql_database_configure.sh
        '''
        expectedmessage = _('"capabilities" of template "mysql_database" '
                            'contains unknown field "http_endpoint". Refer to '
                            'the definition to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_properties(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            properties:
              os_image: F18_x86_64
            capabilities:
              host:
                properties:
                  disk_size: 10 GB
                  num_cpus: { get_input: cpus }
                  mem_size: 4096 MB
              os:
                properties:
                  architecture: x86_64
                  type: Linux
                  distribution: Fedora
                  version: 18.0
        '''
        expectedmessage = _('"properties" of template "server" contains '
                            'unknown field "os_image". Refer to the '
                            'definition to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_interfaces(self):
        tpl_snippet = '''
        node_templates:
          wordpress:
            type: tosca.nodes.WebApplication.WordPress
            requirements:
              - host: webserver
              - database_endpoint: mysql_database
            interfaces:
              Standards:
                 create: wordpress_install.sh
                 configure:
                   implementation: wordpress_configure.sh
                   inputs:
                     wp_db_name: { get_property: [ mysql_database, db_name ] }
                     wp_db_user: { get_property: [ mysql_database, db_user ] }
                     wp_db_password: { get_property: [ mysql_database, \
                     db_password ] }
                     wp_db_port: { get_property: [ SELF, \
                     database_endpoint, port ] }
        '''
        expectedmessage = _('"interfaces" of template "wordpress" contains '
                            'unknown field "Standards". Refer to the '
                            'definition to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

        tpl_snippet = '''
        node_templates:
          wordpress:
            type: tosca.nodes.WebApplication.WordPress
            requirements:
              - host: webserver
              - database_endpoint: mysql_database
            interfaces:
              Standard:
                 create: wordpress_install.sh
                 config:
                   implementation: wordpress_configure.sh
                   inputs:
                     wp_db_name: { get_property: [ mysql_database, db_name ] }
                     wp_db_user: { get_property: [ mysql_database, db_user ] }
                     wp_db_password: { get_property: [ mysql_database, \
                     db_password ] }
                     wp_db_port: { get_property: [ SELF, \
                     database_endpoint, port ] }
        '''
        expectedmessage = _('"interfaces" of template "wordpress" contains '
                            'unknown field "config". Refer to the definition '
                            'to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

        tpl_snippet = '''
        node_templates:
          wordpress:
            type: tosca.nodes.WebApplication.WordPress
            requirements:
              - host: webserver
              - database_endpoint: mysql_database
            interfaces:
              Standard:
                 create: wordpress_install.sh
                 configure:
                   implementation: wordpress_configure.sh
                   input:
                     wp_db_name: { get_property: [ mysql_database, db_name ] }
                     wp_db_user: { get_property: [ mysql_database, db_user ] }
                     wp_db_password: { get_property: [ mysql_database, \
                     db_password ] }
                     wp_db_port: { get_ref_property: [ database_endpoint, \
                     database_endpoint, port ] }
        '''
        expectedmessage = _('"interfaces" of template "wordpress" contains '
                            'unknown field "input". Refer to the definition '
                            'to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_relationship_template_properties(self):
        tpl_snippet = '''
        relationship_templates:
            storage_attachto:
                type: AttachesTo
                properties:
                  device: test_device
        '''
        expectedmessage = _('"properties" of template "storage_attachto" is '
                            'missing required field "[\'location\']".')
        rel_template = (toscaparser.utils.yamlparser.
                        simple_parse(tpl_snippet))['relationship_templates']
        name = list(rel_template.keys())[0]
        rel_template = RelationshipTemplate(rel_template[name], name)
        err = self.assertRaises(exception.MissingRequiredFieldError,
                                rel_template.validate)
        self.assertEqual(expectedmessage, str(err))

    def test_invalid_template_version(self):
        tosca_tpl = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/test_invalid_template_version.yaml")
        self.assertRaises(exception.ValidationError, ToscaTemplate, tosca_tpl)
        valid_versions = '", "'.join(ToscaTemplate.VALID_TEMPLATE_VERSIONS)
        exception.ExceptionCollector.assertExceptionMessage(
            exception.InvalidTemplateVersion,
            (_('The template version "tosca_xyz" is invalid. Valid versions '
               'are "%s".') % valid_versions))

    def test_import_invalid_template_version(self):
        tosca_tpl = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/test_import_invalid_template_version.yaml")
        self.assertRaises(exception.ValidationError, ToscaTemplate, tosca_tpl)
        valid_versions = '", "'.join(ToscaTemplate.VALID_TEMPLATE_VERSIONS)
        exception.ExceptionCollector.assertExceptionMessage(
            exception.InvalidTemplateVersion,
            (_('The template version "tosca_simple_yaml_XXX in '
               '{\'invalid\': \'custom_types/invalid_template_version.yaml\'}"'
               ' is invalid. Valid versions are "%s".') % valid_versions))

    def test_import_template_metadata(self):
        tosca_tpl = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/test_import_metadata.yml")
        ToscaTemplate(tosca_tpl)

    def test_node_template_capabilities_properties(self):
        # validating capability property values
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.WebServer
            capabilities:
              data_endpoint:
                properties:
                  initiator: test
        '''
        expectedmessage = _('The value "test" of property "initiator" is '
                            'not valid. Expected a value from "[source, '
                            'target, peer]".')

        err = self.assertRaises(
            exception.ValidationError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            capabilities:
              host:
                properties:
                  disk_size: 10 GB
                  num_cpus: { get_input: cpus }
                  mem_size: 4096 MB
              os:
                properties:
                  architecture: x86_64
                  type: Linux
                  distribution: Fedora
                  version: 18.0
              scalable:
                properties:
                  min_instances: 1
                  max_instances: 3
                  default_instances: 5
        '''
        expectedmessage = _('"properties" of template "server": '
                            '"default_instances" value is not between '
                            '"min_instances" and "max_instances".')
        err = self.assertRaises(
            exception.ValidationError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_objectstorage_without_required_property(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.ObjectStorage
            properties:
              maxsize: 1 GB
        '''
        expectedmessage = _('"properties" of template "server" is missing '
                            'required field "[\'name\']".')
        err = self.assertRaises(
            exception.MissingRequiredFieldError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_objectstorage_with_invalid_scalar_unit(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.ObjectStorage
            properties:
              name: test
              maxsize: -1
        '''
        expectedmessage = _('"-1" is not a valid scalar-unit.')
        err = self.assertRaises(
            ValueError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_node_template_objectstorage_with_invalid_scalar_type(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.ObjectStorage
            properties:
              name: test
              maxsize: 1 XB
        '''
        expectedmessage = _('"1 XB" is not a valid scalar-unit.')
        err = self.assertRaises(
            ValueError,
            lambda: self._single_node_template_content_test(tpl_snippet))
        self.assertEqual(expectedmessage, err.__str__())

    def test_special_keywords(self):
        """Test special keywords

           Test that special keywords, e.g. metadata, which are not part
           of specification do not throw any validation error.
        """
        tpl_snippet_metadata_map = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            metadata:
              name: server A
              role: master
        '''
        self._single_node_template_content_test(tpl_snippet_metadata_map)

        tpl_snippet_metadata_inline = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            metadata: none
        '''
        self._single_node_template_content_test(tpl_snippet_metadata_inline)

    def test_policy_valid_keynames(self):
        tpl_snippet = '''
        policies:
          - servers_placement:
              type: tosca.policies.Placement
              description: Apply placement policy to servers
              metadata: { user1: 1001, user2: 1002 }
              targets: [ serv1, serv2 ]
        '''
        policies = (toscaparser.utils.yamlparser.
                    simple_parse(tpl_snippet))['policies'][0]
        name = list(policies.keys())[0]
        Policy(name, policies[name], None, None)

    def test_policy_invalid_keyname(self):
        tpl_snippet = '''
        policies:
          - servers_placement:
              type: tosca.policies.Placement
              testkey: testvalue
        '''
        policies = (toscaparser.utils.yamlparser.
                    simple_parse(tpl_snippet))['policies'][0]
        name = list(policies.keys())[0]

        expectedmessage = _('Policy "servers_placement" contains '
                            'unknown field "testkey". Refer to the '
                            'definition to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: Policy(name, policies[name], None, None))
        self.assertEqual(expectedmessage, err.__str__())

    def test_policy_trigger_valid_keyname_senlin_resources(self):
        tpl_snippet = '''
        triggers:
         - resize_compute:
             description: trigger
             event_type: tosca.events.resource.utilization
             schedule:
               start_time: "2015-05-07T07:00:00Z"
               end_time: "2015-06-07T07:00:00Z"
             target_filter:
               node: master-container
               requirement: host
               capability: Container
             condition:
               constraint: { greater_than: 50 }
               granularity: 60
               evaluations: 1
               aggregation_method : mean
             action:
               resize: # Operation name
                inputs:
                 strategy: LEAST_USED
                 implementation: Senlin.webhook()
        '''
        triggers = (toscaparser.utils.yamlparser.
                    simple_parse(tpl_snippet))['triggers'][0]
        name = list(triggers.keys())[0]
        Triggers(name, triggers[name])

    def test_policy_trigger_valid_keyname_heat_resources(self):
        tpl_snippet = '''
        triggers:
         - high_cpu_usage:
             description: trigger
             metric: cpu_util
             condition:
               constraint: utilization greater_than 60%
               threshold: 60
               granularity: 600
               evaluations: 1
               aggregation_method: mean
               resource_type: instance
               comparison_operator: gt
             metadata: SG1
             action: [SP1]
        '''
        triggers = (toscaparser.utils.yamlparser.
                    simple_parse(tpl_snippet))['triggers'][0]
        name = list(triggers.keys())[0]
        Triggers(name, triggers[name])

    def test_policy_trigger_invalid_keyname_senlin_resources(self):
        tpl_snippet = '''
        triggers:
         - resize_compute:
             description: trigger
             event_type: tosca.events.resource.utilization
             schedule:
               start_time: "2015-05-07T07:00:00Z"
               end_time: "2015-06-07T07:00:00Z"
             target_filter1:
               node: master-container
               requirement: host
               capability: Container
             condition:
               constraint: utilization greater_than 50%
               granularity1: 60
               evaluations: 1
               aggregation_method: mean
               resource_type: instance
             action:
               resize: # Operation name
                inputs:
                 strategy: LEAST_USED
                 implementation: Senlin.webhook()
        '''
        triggers = (toscaparser.utils.yamlparser.
                    simple_parse(tpl_snippet))['triggers'][0]
        name = list(triggers.keys())[0]
        expectedmessage = _(
            'Triggers "resize_compute" contains unknown field '
            '"target_filter1". Refer to the definition '
            'to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: Triggers(name, triggers[name]))
        self.assertEqual(expectedmessage, err.__str__())

    def test_policy_trigger_invalid_keyname_heat_resources(self):
        tpl_snippet = '''
        triggers:
         - high_cpu_usage:
             description: trigger
             metric: cpu_util
             condition:
               constraint: utilization greater_than 60%
               threshold: 60
               granularity: 600
               evaluations: 1
               aggregation_method: mean
               resource_type: instance
               comparison_operator: gt
             metadata1: SG1
             action: [SP1]
        '''
        triggers = (toscaparser.utils.yamlparser.
                    simple_parse(tpl_snippet))['triggers'][0]
        name = list(triggers.keys())[0]
        expectedmessage = _(
            'Triggers "high_cpu_usage" contains unknown field '
            '"metadata1". Refer to the definition '
            'to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: Triggers(name, triggers[name]))
        self.assertEqual(expectedmessage, err.__str__())

    def test_policy_missing_required_keyname(self):
        tpl_snippet = '''
        policies:
          - servers_placement:
              description: test description
        '''
        policies = (toscaparser.utils.yamlparser.
                    simple_parse(tpl_snippet))['policies'][0]
        name = list(policies.keys())[0]

        expectedmessage = _('Template "servers_placement" is missing '
                            'required field "type".')
        err = self.assertRaises(
            exception.MissingRequiredFieldError,
            lambda: Policy(name, policies[name], None, None))
        self.assertEqual(expectedmessage, err.__str__())

    def test_policy_without_required_property(self):
        tpl_snippet = '''
        policies:
          - some_policy:
              type: tosca.policies.somePolicy
              properties:
                value: 100
        '''
        policies = (toscaparser.utils.yamlparser.
                    simple_parse(tpl_snippet))['policies'][0]
        name = list(policies.keys())[0]
        policyObj = Policy(name, policies[name], None, None,
                           self._custom_types_policy())
        expectedmessage = _('"properties" of template "some_policy" is '
                            'missing required field "[\'name\']".')
        err = self.assertRaises(
            exception.MissingRequiredFieldError,
            policyObj.validate)
        self.assertEqual(expectedmessage, err.__str__())

    def test_credential_datatype(self):
        tosca_tpl = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/test_credential_datatype.yaml")
        self.assertIsNotNone(ToscaTemplate(tosca_tpl))

    def test_invalid_default_value(self):
        tpl_path = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/test_invalid_input_defaults.yaml")
        self.assertRaises(exception.ValidationError, ToscaTemplate, tpl_path)
        exception.ExceptionCollector.assertExceptionMessage(
            ValueError, _('"two" is not an integer.'))

    def test_invalid_capability(self):
        tpl_snippet = '''
        node_templates:
          server:
            type: tosca.nodes.Compute
            capabilities:
                oss:
                    properties:
                        architecture: x86_64
        '''
        tpl = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        err = self.assertRaises(exception.UnknownFieldError,
                                TopologyTemplate, tpl, None)
        expectedmessage = _('"capabilities" of template "server" contains '
                            'unknown field "oss". Refer to the definition '
                            'to verify valid values.')
        self.assertEqual(expectedmessage, err.__str__())

    def test_qualified_name(self):
        tpl_snippet_full_name = '''
        node_templates:
          supported_type:
            type: tosca.nodes.Compute
        '''
        tpl = (
            toscaparser.utils.yamlparser.simple_parse(
                tpl_snippet_full_name))
        TopologyTemplate(tpl, None)

        tpl_snippet_short_name = '''
        node_templates:
          supported_type:
            type: Compute
        '''
        tpl = (
            toscaparser.utils.yamlparser.simple_parse(
                tpl_snippet_short_name))
        TopologyTemplate(tpl, None)

        tpl_snippet_qualified_name = '''
        node_templates:
          supported_type:
            type: tosca:Compute
        '''
        tpl = (
            toscaparser.utils.yamlparser.simple_parse(
                tpl_snippet_qualified_name))
        TopologyTemplate(tpl, None)

    def test_requirements_as_list(self):
        """Node template with requirements provided with or without list

        Node template requirements are required to be provided as list.
        """

        expectedmessage = _('"requirements" of template "my_webserver"'
                            ' must be of type "list".')

        # requirements provided as dictionary
        tpl_snippet1 = '''
        node_templates:
          my_webserver:
            type: tosca.nodes.WebServer
            requirements:
              host: server
          server:
            type: tosca.nodes.Compute
        '''
        err1 = self.assertRaises(
            exception.TypeMismatchError,
            lambda: self._single_node_template_content_test(tpl_snippet1))
        self.assertEqual(expectedmessage, err1.__str__())

        # requirements provided as string
        tpl_snippet2 = '''
        node_templates:
          my_webserver:
            type: tosca.nodes.WebServer
            requirements: server
          server:
            type: tosca.nodes.Compute
        '''
        err2 = self.assertRaises(
            exception.TypeMismatchError,
            lambda: self._single_node_template_content_test(tpl_snippet2))
        self.assertEqual(expectedmessage, err2.__str__())

        # requirements provided as list
        tpl_snippet3 = '''
        node_templates:
          my_webserver:
            type: tosca.nodes.WebServer
            requirements:
              - host: server
          server:
            type: tosca.nodes.Compute
        '''
        self.assertIsNone(
            self._single_node_template_content_test(tpl_snippet3))

    def test_properties_override_with_flavor_and_image(self):
        tpl_path = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/test_normative_type_properties_override.yaml")
        self.assertIsNotNone(ToscaTemplate(tpl_path))

    def test_long_rel(self):
        tpl_path = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/test_long_rel.yaml")
        self.assertIsNotNone(ToscaTemplate(tpl_path))

    def test_policy_reservation_valid_keyname_heat_resources(self):
        tpl_snippet = '''
        reservation:
          start_actions: [SP_RSV]
          before_end_actions: [SP_RSV]
          end_actions: [noop]
          properties:
            lease_id: '58d2239c-f181-4915-bdcb-040f7ef911a7'
        '''
        reservation = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        name = list(reservation.keys())[0]
        Reservation(reservation[name])

    def test_policy_reservation_invalid_keyname_heat_resources(self):
        tpl_snippet = '''
        reservation:
          start_actions: [SP_RSV]
          before_actions: [SP_RSV]
          end_actions: [noop]
          properties:
            lease_id: '58d2239c-f181-4915-bdcb-040f7ef911a7'
        '''
        reservation = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        name = list(reservation.keys())[0]
        expectedmessage = _(
            'Reservation contains unknown field '
            '"before_actions". Refer to the definition '
            'to verify valid values.')
        err = self.assertRaises(
            exception.UnknownFieldError,
            lambda: Reservation(reservation[name]))
        self.assertEqual(expectedmessage, err.__str__())

    def test_policy_reservation_missing_key_heat_resources(self):
        tpl_snippet = '''
        reservation:
          start_actions: [SP_RSV]
          end_actions: [noop]
          properties:
            lease_id: '58d2239c-f181-4915-bdcb-040f7ef911a7'
        '''
        reservation = (toscaparser.utils.yamlparser.simple_parse(tpl_snippet))
        name = list(reservation.keys())[0]
        expectedmessage = _('Reservation is missing '
                            'required field "before_end_actions".')
        err = self.assertRaises(
            exception.MissingRequiredFieldError,
            lambda: Reservation(reservation[name]))
        self.assertEqual(expectedmessage, err.__str__())

    def test_scalar_unit_without_unit(self):
        tpl_path = os.path.join(
            os.path.dirname(os.path.abspath(__file__)),
            "data/test_scalar_unit_without_unit.yaml")
        self.assertRaises(exception.ValidationError,
                          lambda: ToscaTemplate(tpl_path))
