Refactor code and add more unit tests

Refactoring was done to make more of the methods easier to test.
Existing unit tests were adjusted/simplified and more tests were
added as a result.

Change-Id: I57c334c6a11fa8e12c88bdd0788d63a35cdfd7bc
This commit is contained in:
Paul Van Eck 2014-10-02 00:28:58 -07:00
parent d90a1e0c44
commit 768b4676a1
4 changed files with 240 additions and 111 deletions

View File

@ -55,41 +55,35 @@ class RefstackClient:
else:
self.logger.setLevel(logging.ERROR)
# assign local vars to match args
self.url = args.url
self.tempest_dir = args.tempest_dir
self.tempest_script = os.path.join(self.tempest_dir, 'run_tempest.sh')
self.test_cases = args.test_cases
self.verbose = args.verbose
self.offline = args.offline
self.args = args
self.tempest_script = os.path.join(self.args.tempest_dir,
'run_tempest.sh')
# Check that the config file exists.
if not os.path.isfile(args.conf_file):
self.logger.error("File not valid: %s" % args.conf_file)
if not os.path.isfile(self.args.conf_file):
self.logger.error("Conf file not valid: %s" % self.args.conf_file)
exit(1)
self.conf_file = args.conf_file
# Check that the Tempest directory is an existing directory.
if not os.path.isdir(self.args.tempest_dir):
self.logger.error("Tempest directory given is not a directory or "
"does not exist: %s" % self.args.tempest_dir)
exit(1)
self.tempest_script = os.path.join(self.args.tempest_dir,
'run_tempest.sh')
self.conf_file = self.args.conf_file
self.conf = ConfigParser.SafeConfigParser()
self.conf.read(self.conf_file)
self.conf.read(self.args.conf_file)
self.results_file = self._get_subunit_output_file()
self.cpid = self._get_cpid_from_keystone()
def post_results(self, content):
'''Post the combined results back to the server.'''
# TODO(cdiep): Post results once the API is available as outlined here:
# github.com/stackforge/refstack/blob/master/specs/approved/api-v1.md
self.logger.debug('API request content: %s ' % content)
def _get_subunit_output_file(self):
def _get_next_stream_subunit_output_file(self, tempest_dir):
'''This method reads from the next-stream file in the .testrepository
directory of the given Tempest path. The integer here is the name
of the file where subunit output will be saved to.'''
try:
subunit_file = open(os.path.join(
self.tempest_dir, '.testrepository',
tempest_dir, '.testrepository',
'next-stream'), 'r').read().rstrip()
except (IOError, OSError):
self.logger.debug('The .testrepository/next-stream file was not '
@ -100,20 +94,20 @@ class RefstackClient:
# there is a newly generated .testrepository directory.
subunit_file = "0"
return os.path.join(self.tempest_dir, '.testrepository', subunit_file)
return os.path.join(tempest_dir, '.testrepository', subunit_file)
def _get_cpid_from_keystone(self):
def _get_cpid_from_keystone(self, conf_file):
'''This will get the Keystone service ID which is used as the CPID.'''
try:
args = {'auth_url': self.conf.get('identity', 'uri'),
'username': self.conf.get('identity', 'admin_username'),
'password': self.conf.get('identity', 'admin_password')}
args = {'auth_url': conf_file.get('identity', 'uri'),
'username': conf_file.get('identity', 'admin_username'),
'password': conf_file.get('identity', 'admin_password')}
if self.conf.has_option('identity', 'admin_tenant_id'):
args['tenant_id'] = self.conf.get('identity',
args['tenant_id'] = conf_file.get('identity',
'admin_tenant_id')
else:
args['tenant_name'] = self.conf.get('identity',
args['tenant_name'] = conf_file.get('identity',
'admin_tenant_name')
client = ksclient.Client(**args)
@ -127,38 +121,54 @@ class RefstackClient:
self.logger.error("Invalid Config File: %s" % e)
exit(1)
def _form_json_content(self, cpid, duration, results):
'''This method will create the JSON content for the request.'''
def _form_result_content(self, cpid, duration, results):
'''This method will create the content for the request. The spec at
github.com/stackforge/refstack/blob/master/specs/approved/api-v1.md.
defines the format expected by the API.'''
content = {}
content['cpid'] = cpid
content['duration_seconds'] = duration
content['results'] = results
return json.dumps(content)
return content
def get_passed_tests(self, result_file):
'''Get just the tests IDs in a subunit file that passed Tempest.'''
'''Get a list of tests IDs that passed Tempest from a subunit file.'''
subunit_processor = SubunitProcessor(result_file)
results = subunit_processor.process_stream()
return results
def post_results(self, url, content):
'''Post the combined results back to the server.'''
# TODO(cdiep): Post results once the API is available as outlined here:
# github.com/stackforge/refstack/blob/master/specs/approved/api-v1.md
json_content = json.dumps(content)
self.logger.debug('API request content: %s ' % json_content)
def run(self):
'''Execute tempest test against the cloud.'''
try:
results_file = self._get_next_stream_subunit_output_file(
self.args.tempest_dir)
cpid = self._get_cpid_from_keystone(self.conf)
self.logger.info("Starting Tempest test...")
start_time = time.time()
# Run the tempest script, specifying the conf file and the
# flag telling it to not use a virtual environment.
# Run the tempest script, specifying the conf file, the flag
# telling it to not use a virtual environment (-N), and the flag
# telling it to run the tests serially (-t).
cmd = (self.tempest_script, '-C', self.conf_file, '-N', '-t')
# Add the tempest test cases to test as arguments.
if self.test_cases:
cmd += ('--', self.test_cases)
# Add the tempest test cases to test as arguments. If no test
# cases are specified, then all Tempest API tests will be run.
if self.args.test_cases:
cmd += ('--', self.args.test_cases)
else:
cmd += ('--', "tempest.api")
# If there were two verbose flags, show tempest results.
if self.verbose > 1:
if self.args.verbose > 1:
stderr = None
else:
# Suppress tempest results output. Note that testr prints
@ -174,17 +184,16 @@ class RefstackClient:
duration = int(elapsed)
self.logger.info('Tempest test complete.')
self.logger.info('Subunit results located in: %s' %
self.results_file)
self.logger.info('Subunit results located in: %s' % results_file)
results = self.get_passed_tests(self.results_file)
results = self.get_passed_tests(results_file)
self.logger.info("Number of passed tests: %d" % len(results))
# If the user did not specify the offline argument, then upload
# the results.
if not self.offline:
content = self._form_json_content(self.cpid, duration, results)
self.post_results(content)
if not self.args.offline:
content = self._form_result_content(cpid, duration, results)
self.post_results(self.args.url, content)
except subprocess.CalledProcessError as e:
self.logger.error('%s failed to complete' % (e))

View File

@ -1,7 +1,23 @@
time: 2014-08-15 10:34:49.010492Z
tags: worker-0
test: refstack_client.tests.unit.tests.TestSequenceFunctions.test_run
time: 2014-08-15 10:34:49.020584Z
successful: refstack_client.tests.unit.tests.TestSequenceFunctions.test_run [ multipart
test: tempest.passed.test
time: 2014-08-15 10:34:51.020584Z
successful: tempest.passed.test [ multipart
]
tags: -worker-0
time: 2014-08-15 10:34:57.543400Z
tags: worker-0
test: tempest.failed.test
time: 2014-08-15 10:34:57.548225Z
failure: tempest.failed.test [ multipart
Content-Type: text/x-traceback;charset="utf8",language="python"
traceback
2E4
Traceback (most recent call last):
File "/usr/lib/python2.7/some_file.py", line 2335, in exit
_sys.exit(status)
SystemExit: 2
0
]
tags: -worker-0

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@ -0,0 +1 @@
1

View File

@ -13,11 +13,10 @@
# License for the specific language governing permissions and limitations
# under the License.
#
import ConfigParser
import logging
import os
import subprocess
import tempfile
import mock
from mock import MagicMock
@ -27,6 +26,10 @@ import refstack_client.refstack_client as rc
class TestRefstackClient(unittest.TestCase):
test_path = os.path.dirname(os.path.realpath(__file__))
conf_file_name = '%s/refstack-client.test.conf' % test_path
def patch(self, name, **kwargs):
"""
:param name: Name of class to be patched
@ -38,33 +41,29 @@ class TestRefstackClient(unittest.TestCase):
self.addCleanup(patcher.stop)
return thing
def mock_argv(self, conf_file_name=None, verbose=None):
def mock_argv(self, conf_file_name=None, tempest_dir=None, verbose=None):
"""
Build argv for test
Build argv for test.
:param conf_file_name: Configuration file name
:param verbose: verbosity level
:return: argv
"""
if conf_file_name is None:
conf_file_name = self.conf_file_name
if tempest_dir is None:
tempest_dir = self.test_path
argv = ['-c', conf_file_name,
'--tempest-dir', self.test_path,
'--tempest-dir', tempest_dir,
'--test-cases', 'tempest.api.compute',
'--url', '0.0.0.0']
if verbose:
argv.append(verbose)
return argv
def setUp(self):
def mock_keystone(self):
"""
Test case setup
Mock the Keystone client methods.
"""
logging.disable(logging.CRITICAL)
self.mock_tempest_process = MagicMock(name='tempest_runner')
self.mock_popen = self.patch(
'refstack_client.refstack_client.subprocess.Popen',
return_value=self.mock_tempest_process
)
self.mock_identity_service = MagicMock(
name='service', **{'type': 'identity', 'id': 'test-id'})
self.mock_ks_client = MagicMock(
@ -75,12 +74,16 @@ class TestRefstackClient(unittest.TestCase):
'refstack_client.refstack_client.ksclient.Client',
return_value=self.mock_ks_client
)
self.test_path = os.path.dirname(os.path.realpath(__file__))
self.conf_file_name = '%s/refstack-client.test.conf' % self.test_path
def setUp(self):
"""
Test case setup
"""
logging.disable(logging.CRITICAL)
def test_verbose(self):
"""
Test different verbosity levels
Test different verbosity levels.
"""
args = rc.parse_cli_args(self.mock_argv())
client = rc.RefstackClient(args)
@ -94,76 +97,176 @@ class TestRefstackClient(unittest.TestCase):
client = rc.RefstackClient(args)
self.assertEqual(client.logger.level, logging.DEBUG)
def test_no_conf_file(self):
def test_get_next_stream_subunit_output_file(self):
"""
Test not existing configuration file
Test getting the subunit file from an existing .testrepository
directory that has a next-stream file.
"""
args = rc.parse_cli_args(self.mock_argv(conf_file_name='ptn-khl'))
self.assertRaises(SystemExit, rc.RefstackClient, args)
def test_run_with_default_config(self):
"""
Test run with default configuration.
admin_tenant_id is set in configuration.
"""
args = rc.parse_cli_args(self.mock_argv(verbose='-vv'))
args = rc.parse_cli_args(self.mock_argv())
client = rc.RefstackClient(args)
client.run()
self.mock_popen.assert_called_with(
('%s/run_tempest.sh' % self.test_path, '-C', self.conf_file_name,
'-N', '-t', '--', 'tempest.api.compute'),
stderr=None
)
output_file = client._get_next_stream_subunit_output_file(
self.test_path)
# The next-stream file contains a "1".
expected_file = expected_file = self.test_path + "/.testrepository/1"
self.assertEqual(expected_file, output_file)
def test_get_next_stream_subunit_output_file_nonexistent(self):
"""
Test getting the subunit output file from a nonexistent
.testrepository directory.
"""
args = rc.parse_cli_args(self.mock_argv())
client = rc.RefstackClient(args)
output_file = client._get_next_stream_subunit_output_file(
"/tempest/path")
expected_file = "/tempest/path/.testrepository/0"
self.assertEqual(expected_file, output_file)
def test_get_cpid_from_keystone_with_tenant_id(self):
"""
Test getting the CPID from Keystone using an admin tenant ID.
"""
args = rc.parse_cli_args(self.mock_argv())
client = rc.RefstackClient(args)
self.mock_keystone()
cpid = client._get_cpid_from_keystone(client.conf)
self.ks_client_builder.assert_called_with(
username='admin', tenant_id='admin_tenant_id',
password='test', auth_url='0.0.0.0:35357'
)
self.assertEqual('test-id', client.cpid)
self.assertEqual('test-id', cpid)
def test_run_with_admin_tenant_name(self):
def test_get_cpid_from_keystone_with_tenant_name(self):
"""
Test run with admin default configuration.
admin_tenant_name is set in configuration.
Test getting the CPID from Keystone using an admin tenant name.
"""
base_conf = ConfigParser.SafeConfigParser()
base_conf.read(self.conf_file_name)
base_conf.remove_option('identity', 'admin_tenant_id')
base_conf.set('identity', 'admin_tenant_name', 'admin_tenant_name')
test_conf = tempfile.NamedTemporaryFile()
base_conf.write(test_conf)
test_conf.flush()
args = rc.parse_cli_args(self.mock_argv(conf_file_name=test_conf.name,
verbose='-vv'))
args = rc.parse_cli_args(self.mock_argv())
client = rc.RefstackClient(args)
client.run()
client.conf.remove_option('identity', 'admin_tenant_id')
client.conf.set('identity', 'admin_tenant_name', 'admin_tenant_name')
self.mock_keystone()
cpid = client._get_cpid_from_keystone(client.conf)
self.ks_client_builder.assert_called_with(
username='admin', tenant_name='admin_tenant_name',
password='test', auth_url='0.0.0.0:35357'
)
self.assertEqual('test-id', client.cpid)
def test_check_admin_tenant(self):
self.assertEqual('test-id', cpid)
def test_get_cpid_from_keystone_no_admin_tenant(self):
"""
Test exit under absence information about admin tenant info
Test exit under absence of information about admin tenant info.
"""
base_conf = ConfigParser.SafeConfigParser()
base_conf.read(self.conf_file_name)
base_conf.remove_option('identity', 'admin_tenant_id')
test_conf = tempfile.NamedTemporaryFile()
base_conf.write(test_conf)
test_conf.flush()
args = rc.parse_cli_args(self.mock_argv(conf_file_name=test_conf.name,
verbose='-vv'))
args = rc.parse_cli_args(self.mock_argv(verbose='-vv'))
client = rc.RefstackClient(args)
client.conf.remove_option('identity', 'admin_tenant_id')
self.assertRaises(SystemExit, client._get_cpid_from_keystone,
client.conf)
def test_form_result_content(self):
"""
Test that the request content is formed into the expected format.
"""
args = rc.parse_cli_args(self.mock_argv())
client = rc.RefstackClient(args)
content = client._form_result_content(1, 1, ['tempest.sample.test'])
expected = {'cpid': 1,
'duration_seconds': 1,
'results': ['tempest.sample.test']}
self.assertEqual(expected, content)
def test_get_passed_tests(self):
"""
Test that only passing tests are retrieved from a subunit file.
"""
args = rc.parse_cli_args(self.mock_argv())
client = rc.RefstackClient(args)
subunit_file = self.test_path + "/.testrepository/0"
results = client.get_passed_tests(subunit_file)
expected = ['tempest.passed.test']
self.assertEqual(expected, results)
def test_run_tempest(self):
"""
Test that the test command will run the tempest script using the
default configuration.
"""
args = rc.parse_cli_args(self.mock_argv(verbose='-vv'))
client = rc.RefstackClient(args)
mock_popen = self.patch(
'refstack_client.refstack_client.subprocess.Popen',
return_value=MagicMock())
self.mock_keystone()
client.get_passed_tests = MagicMock(return_value=['test'])
client.post_results = MagicMock()
client._save_json_results = MagicMock()
client.run()
mock_popen.assert_called_with(
('%s/run_tempest.sh' % self.test_path, '-C', self.conf_file_name,
'-N', '-t', '--', 'tempest.api.compute'),
stderr=None
)
expected_content = {'duration_seconds': mock.ANY,
'cpid': 'test-id',
'results': ['test']}
client.post_results.assert_called_with('0.0.0.0', expected_content)
def test_run_tempest_offline(self):
"""
Test that the test command will run the tempest script in offline mode.
"""
argv = self.mock_argv(verbose='-vv')
argv.append('--offline')
args = rc.parse_cli_args(argv)
client = rc.RefstackClient(args)
mock_popen = self.patch(
'refstack_client.refstack_client.subprocess.Popen',
return_value=MagicMock())
self.mock_keystone()
client.get_passed_tests = MagicMock(return_value=['test'])
client.post_results = MagicMock()
client._save_json_results = MagicMock()
client.run()
mock_popen.assert_called_with(
('%s/run_tempest.sh' % self.test_path, '-C', self.conf_file_name,
'-N', '-t', '--', 'tempest.api.compute'),
stderr=None
)
# The method post_results should not be called if --offline was
# specified.
self.assertFalse(client.post_results.called)
def test_run_tempest_no_conf_file(self):
"""
Test when a nonexistent configuration file is passed in.
"""
args = rc.parse_cli_args(self.mock_argv(conf_file_name='ptn-khl'))
self.assertRaises(SystemExit, rc.RefstackClient, args)
def test_run_tempest_nonexisting_directory(self):
"""
Test when a nonexistent Tempest directory is passed in.
"""
args = rc.parse_cli_args(self.mock_argv(tempest_dir='/does/not/exist'))
self.assertRaises(SystemExit, rc.RefstackClient, args)
def test_failed_run(self):
"""
Test failed tempest run
Test failed tempest run.
"""
self.mock_tempest_process.communicate = MagicMock(
mock_tempest_process = MagicMock(name='tempest_runner')
self.patch('refstack_client.refstack_client.subprocess.Popen',
return_value=mock_tempest_process)
mock_tempest_process.communicate = MagicMock(
side_effect=subprocess.CalledProcessError(returncode=1,
cmd='./run_tempest.sh')
)
self.mock_keystone()
args = rc.parse_cli_args(self.mock_argv(verbose='-vv'))
client = rc.RefstackClient(args)
self.assertEqual(client.logger.level, logging.DEBUG)