322 lines
14 KiB
Python

# 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
import translator.toscalib.elements.interfaces as ifaces
from translator.toscalib.elements.nodetype import NodeType
from translator.toscalib.functions import GetInput
from translator.toscalib.functions import GetProperty
from translator.toscalib.nodetemplate import NodeTemplate
from translator.toscalib.tests.base import TestCase
from translator.toscalib.tosca_template import ToscaTemplate
import translator.toscalib.utils.yamlparser
class ToscaTemplateTest(TestCase):
'''TOSCA template.'''
tosca_tpl = os.path.join(
os.path.dirname(os.path.abspath(__file__)),
"data/tosca_single_instance_wordpress.yaml")
tosca = ToscaTemplate(tosca_tpl)
tosca_elk_tpl = os.path.join(
os.path.dirname(os.path.abspath(__file__)),
"data/tosca_elk.yaml")
def test_version(self):
self.assertEqual(self.tosca.version, "tosca_simple_yaml_1_0_0")
def test_description(self):
expected_description = "TOSCA simple profile with wordpress, " \
"web server and mysql on the same server."
self.assertEqual(self.tosca.description, expected_description)
def test_inputs(self):
self.assertEqual(
['cpus', 'db_name', 'db_port',
'db_pwd', 'db_root_pwd', 'db_user'],
sorted([input.name for input in self.tosca.inputs]))
input_name = "db_port"
expected_description = "Port for the MySQL database."
for input in self.tosca.inputs:
if input.name == input_name:
self.assertEqual(input.description, expected_description)
def test_node_tpls(self):
'''Test nodetemplate names.'''
self.assertEqual(
['mysql_database', 'mysql_dbms', 'server',
'webserver', 'wordpress'],
sorted([tpl.name for tpl in self.tosca.nodetemplates]))
tpl_name = "mysql_database"
expected_type = "tosca.nodes.Database"
expected_properties = ['db_name', 'db_password', 'db_user']
expected_capabilities = ['database_endpoint']
expected_requirements = [{'host': 'mysql_dbms'}]
expected_relationshp = ['tosca.relationships.HostedOn']
expected_host = ['mysql_dbms']
expected_interface = [ifaces.LIFECYCLE]
for tpl in self.tosca.nodetemplates:
if tpl_name == tpl.name:
'''Test node type.'''
self.assertEqual(tpl.type, expected_type)
'''Test properties.'''
self.assertEqual(
expected_properties,
sorted([p.name for p in tpl.properties]))
'''Test capabilities.'''
self.assertEqual(
expected_capabilities,
sorted([p.name for p in tpl.capabilities]))
'''Test requirements.'''
self.assertEqual(
expected_requirements, tpl.requirements)
'''Test relationship.'''
self.assertEqual(
expected_relationshp,
[x.type for x in tpl.relationships.keys()])
self.assertEqual(
expected_host,
[y.name for y in tpl.relationships.values()])
'''Test interfaces.'''
self.assertEqual(
expected_interface,
[x.type for x in tpl.interfaces])
if tpl.name == 'server':
'''Test property value'''
for property in tpl.properties:
if property.name == 'mem_size':
self.assertEqual(property.value, 4096)
'''Test capability'''
self.assertIn('os', [cap.name for cap in tpl.capabilities])
os_props_objs = None
os_props = None
os_type_prop = None
for capability in tpl.capabilities:
if capability.name == 'os':
os_props_objs = \
capability.get_properties_objects()
os_props = capability.get_properties()
os_type_prop = capability.get_property_value('type')
break
self.assertEqual(
['Linux'],
[p.value for p in os_props_objs if p.name == 'type'])
self.assertEqual(
'Linux',
os_props['type'].value if 'type' in os_props else '')
self.assertEqual('Linux', os_props['type'].value)
self.assertEqual('Linux', os_type_prop)
def test_outputs(self):
self.assertEqual(
['website_url'],
sorted([output.name for output in self.tosca.outputs]))
def test_interfaces(self):
wordpress_node = [
node for node in self.tosca.nodetemplates
if node.name == 'wordpress'][0]
interfaces = wordpress_node.interfaces
self.assertEqual(2, len(interfaces))
for interface in interfaces:
if interface.name == 'create':
self.assertEqual(ifaces.LIFECYCLE,
interface.type)
self.assertEqual('wordpress/wordpress_install.sh',
interface.implementation)
self.assertIsNone(interface.inputs)
elif interface.name == 'configure':
self.assertEqual(ifaces.LIFECYCLE,
interface.type)
self.assertEqual('wordpress/wordpress_configure.sh',
interface.implementation)
self.assertEqual(4, len(interface.inputs))
wp_db_port = interface.inputs['wp_db_port']
self.assertTrue(isinstance(wp_db_port, GetProperty))
self.assertEqual('get_property', wp_db_port.name)
self.assertEqual(['SELF',
'database_endpoint',
'port'],
wp_db_port.args)
result = wp_db_port.result()
self.assertTrue(isinstance(result, GetInput))
else:
raise AssertionError(
'Unexpected interface: {0}'.format(interface.name))
def test_normative_type_by_short_name(self):
#test template with a short name Compute
template = os.path.join(
os.path.dirname(os.path.abspath(__file__)),
"data/test_tosca_normative_type_by_shortname.yaml")
tosca_tpl = ToscaTemplate(template)
expected_type = "tosca.nodes.Compute"
for tpl in tosca_tpl.nodetemplates:
self.assertEqual(tpl.type, expected_type)
for tpl in tosca_tpl.nodetemplates:
compute_type = NodeType(tpl.type)
self.assertEqual(
sorted(['tosca.capabilities.Container',
'tosca.capabilities.OperatingSystem',
'tosca.capabilities.network.Bindable',
'tosca.capabilities.Scalable']),
sorted([c.type for c in compute_type.capabilities]))
def test_template_with_no_inputs(self):
tosca_tpl = self._load_template('test_no_inputs_in_template.yaml')
self.assertEqual(0, len(tosca_tpl.inputs))
def test_template_with_no_outputs(self):
tosca_tpl = self._load_template('test_no_outputs_in_template.yaml')
self.assertEqual(0, len(tosca_tpl.outputs))
def test_relationship_interface(self):
template = ToscaTemplate(self.tosca_elk_tpl)
for node_tpl in template.nodetemplates:
if node_tpl.name == 'nodejs':
config_interface = 'tosca.interfaces.relationship.Configure'
relation = node_tpl.relationships
for key in relation.keys():
rel_tpl = relation.get(key).get_relationship_template()
interfaces = rel_tpl[0].interfaces
for interface in interfaces:
self.assertEqual(config_interface,
interface.type)
self.assertEqual('pre_configure_source',
interface.name)
self.assertEqual('nodejs/pre_configure_source.sh',
interface.implementation)
def test_template_macro(self):
template = ToscaTemplate(self.tosca_elk_tpl)
for node_tpl in template.nodetemplates:
if node_tpl.name == 'mongo_server':
self.assertEqual(
['disk_size', 'mem_size', 'num_cpus'],
sorted([p.name for p in node_tpl.properties]))
def test_template_requirements(self):
"""Test different formats of requirements
The requirements can be defined in few different ways,
1. Requirement expressed as a capability with an implicit relationship.
2. Requirement expressed with explicit relationship.
3. Requirement expressed with a relationship template.
4. Requirement expressed via TOSCA types to provision a node
with explicit relationship.
5. Requirement expressed via TOSCA types with a filter.
"""
tosca_tpl = os.path.join(
os.path.dirname(os.path.abspath(__file__)),
"data/test_requirements.yaml")
tosca = ToscaTemplate(tosca_tpl)
for node_tpl in tosca.nodetemplates:
if node_tpl.name == 'my_app':
expected_relationship = [
('tosca.relationships.ConnectsTo', 'mysql_database'),
('tosca.relationships.HostedOn', 'my_webserver')]
actual_relationship = sorted([
(relation.type, node.name) for
relation, node in node_tpl.relationships.items()])
self.assertEqual(expected_relationship, actual_relationship)
if node_tpl.name == 'mysql_database':
self.assertEqual(
[('tosca.relationships.HostedOn', 'my_dbms')],
[(relation.type, node.name) for
relation,
node in node_tpl.relationships.items()])
if node_tpl.name == 'my_server':
self.assertEqual(
[('tosca.relationships.AttachTo', 'my_storage')],
[(relation.type, node.name) for
relation,
node in node_tpl.relationships.items()])
def test_template_requirements_not_implemented(self):
#TODO(spzala) replace this test with new one once TOSCA types look up
#support is implemented.
"""Requirements that yet need to be implemented
The following requirement formats are not yet implemented,
due to look up dependency:
1. Requirement expressed via TOSCA types to provision a node
with explicit relationship.
2. Requirement expressed via TOSCA types with a filter.
"""
tpl_snippet_1 = '''
node_templates:
mysql_database:
type: tosca.nodes.Database
description: Requires a particular node type and relationship.
To be full-filled via lookup into node repository.
requirements:
- req1:
node: tosca.nodes.DBMS
relationship: tosca.relationships.HostedOn
'''
tpl_snippet_2 = '''
node_templates:
my_webserver:
type: tosca.nodes.WebServer
description: Requires a particular node type with a filter.
To be full-filled via lookup into node repository.
requirements:
- req1:
node: tosca.nodes.Compute
target_filter:
properties:
num_cpus: { in_range: [ 1, 4 ] }
mem_size: { greater_or_equal: 2 }
capabilities:
- tosca.capabilities.OS:
properties:
architecture: x86_64
type: linux
'''
tpl_snippet_3 = '''
node_templates:
my_webserver2:
type: tosca.nodes.WebServer
description: Requires a node type with a particular capability.
To be full-filled via lookup into node repository.
requirements:
- req1:
node: tosca.nodes.Compute
relationship: tosca.relationships.HostedOn
capability: tosca.capabilities.Container
'''
self._requirements_not_implemented(tpl_snippet_1, 'mysql_database')
self._requirements_not_implemented(tpl_snippet_2, 'my_webserver')
self._requirements_not_implemented(tpl_snippet_3, 'my_webserver2')
def _requirements_not_implemented(self, tpl_snippet, tpl_name):
nodetemplates = (translator.toscalib.utils.yamlparser.
simple_parse(tpl_snippet))['node_templates']
self.assertRaises(
NotImplementedError,
lambda: NodeTemplate(tpl_name, nodetemplates).relationships)