def test_from_path_packaged_scenarios_small_large_clusters(self):
three_node_cluster = mock_cluster(3)
one_hundred_twenty_eight_node_cluster = mock_cluster(128)
for path in Scenario.find_configuration_files():
scenario_parser.from_path(
path, cluster=three_node_cluster)
scenario_parser.from_path(
path, cluster=one_hundred_twenty_eight_node_cluster)
def test_from_path_packaged_scenarios(self):
for path in Scenario.find_configuration_files():
scenario = scenario_parser.from_path(path)
first_setup_step = scenario.steps[Phase.SETUP][0]
self.assertIsInstance(
first_setup_step, CleanUp,
"The first step in the setup phase should be cluster.CleanUp "
"(path: %s, found: %s)" % (path, first_setup_step))
def from_path(path, vars=None, *args, **kwargs):
"""Read a scenario configuration and construct a new scenario instance.
Args:
path (basestring): Path to a configuration file. `path` may be a directory
containing a single configuration file.
*args: Arguments passed to Scenario __init__.
**kwargs: Arguments passed to Scenario __init__.
Returns:
Scenario: A new scenario instance.
"""
# If path is a directory, find a configuration file inside that directory.
if os.path.isdir(path):
paths = Scenario.find_configuration_files(path)
if not paths:
raise ValueError("No configuration files found at '%s'" % path)
elif len(paths) > 1:
raise ValueError("Multiple configuration files found at '%s': %r" %
(path, paths))
else:
path = paths[0]
# Parse the configuration file and construct a new scenario.
directory, filename = os.path.split(path)
extension = os.path.splitext(filename)[1]
if extension.lower() in [".yml", ".yaml"]:
with open(path) as config_file:
try:
scenario = from_yaml_str(config_file.read(), *args,
vars=vars, source_directory=directory, **kwargs)
except yaml.parser.ParserError as err:
raise CurieTestException("Unable to parse YAML at path %r, check "
"syntax: %r" % (path, str(err)))
else:
raise ValueError("Invalid file type '%s'" % path)
return scenario
def test_from_path_readonly(self): path = Scenario.find_configuration_files()[0] scenario = scenario_parser.from_path(path, readonly=True) self.assertTrue(scenario.readonly) scenario = scenario_parser.from_path(path, readonly=False) self.assertFalse(scenario.readonly)
