jyapayne/compose
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Implement extends

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Signed-off-by: Aanand Prasad <aanand.prasad@gmail.com>
This commit is contained in:
Aanand Prasad 2015-03-18 13:51:27 -07:00
commit 4c582e4352
11 changed files with 421 additions and 28 deletions
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111
tests/unit/config_test.py
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@ -38,6 +38,8 @@ class ConfigTest(unittest.TestCase):
)
config.make_service_dict('foo', {'ports': ['8000']})
class EnvTest(unittest.TestCase):
def test_parse_environment_as_list(self):
environment =[
'NORMAL=F1',
@ -130,3 +132,112 @@ class ConfigTest(unittest.TestCase):
service_dict['environment'],
{'FILE_DEF': 'F1', 'FILE_DEF_EMPTY': '', 'ENV_DEF': 'E3', 'NO_DEF': ''},
)
class ExtendsTest(unittest.TestCase):
def test_extends(self):
service_dicts = config.load('tests/fixtures/extends/docker-compose.yml')
service_dicts = sorted(
service_dicts,
key=lambda sd: sd['name'],
)
self.assertEqual(service_dicts, [
{
'name': 'mydb',
'image': 'busybox',
'command': 'sleep 300',
},
{
'name': 'myweb',
'image': 'busybox',
'command': 'sleep 300',
'links': ['mydb:db'],
'environment': {
"FOO": "1",
"BAR": "2",
"BAZ": "2",
},
}
])
def test_nested(self):
service_dicts = config.load('tests/fixtures/extends/nested.yml')
self.assertEqual(service_dicts, [
{
'name': 'myweb',
'image': 'busybox',
'command': '/bin/true',
'environment': {
"FOO": "2",
"BAR": "2",
},
},
])
def test_circular(self):
try:
config.load('tests/fixtures/extends/circle-1.yml')
raise Exception("Expected config.CircularReference to be raised")
except config.CircularReference as e:
self.assertEqual(
[(os.path.basename(filename), service_name) for (filename, service_name) in e.trail],
[
('circle-1.yml', 'web'),
('circle-2.yml', 'web'),
('circle-1.yml', 'web'),
],
)
def test_extends_validation(self):
dictionary = {'extends': None}
load_config = lambda: config.make_service_dict('myweb', dictionary, working_dir='tests/fixtures/extends')
self.assertRaisesRegexp(config.ConfigurationError, 'dictionary', load_config)
dictionary['extends'] = {}
self.assertRaises(config.ConfigurationError, load_config)
dictionary['extends']['file'] = 'common.yml'
self.assertRaisesRegexp(config.ConfigurationError, 'service', load_config)
dictionary['extends']['service'] = 'web'
self.assertIsInstance(load_config(), dict)
dictionary['extends']['what'] = 'is this'
self.assertRaisesRegexp(config.ConfigurationError, 'what', load_config)
def test_blacklisted_options(self):
def load_config():
return config.make_service_dict('myweb', {
'extends': {
'file': 'whatever',
'service': 'web',
}
}, '.')
with self.assertRaisesRegexp(config.ConfigurationError, 'links'):
other_config = {'web': {'links': ['db']}}
with mock.patch.object(config, 'load_yaml', return_value=other_config):
print load_config()
with self.assertRaisesRegexp(config.ConfigurationError, 'volumes_from'):
other_config = {'web': {'volumes_from': ['db']}}
with mock.patch.object(config, 'load_yaml', return_value=other_config):
print load_config()
with self.assertRaisesRegexp(config.ConfigurationError, 'net'):
other_config = {'web': {'net': 'container:db'}}
with mock.patch.object(config, 'load_yaml', return_value=other_config):
print load_config()
other_config = {'web': {'net': 'host'}}
with mock.patch.object(config, 'load_yaml', return_value=other_config):
print load_config()