stevedore/stevedore/tests/test_named.py
Doug Hellmann abf23bc0e9 Correct argument types in name sort tests
The "names" argument is supposed to be a list, not a
single string.

Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
2013-05-19 12:22:48 -04:00

59 lines
1.7 KiB
Python

from stevedore import named
import mock
def test_named():
em = named.NamedExtensionManager(
'stevedore.test.extension',
names=['t1'],
invoke_on_load=True,
invoke_args=('a',),
invoke_kwds={'b': 'B'},
)
actual = em.names()
assert actual == ['t1']
def test_enabled_before_load():
# Set up the constructor for the FauxExtension to cause an
# AssertionError so the test fails if the class is instantiated,
# which should only happen if it is loaded before the name of the
# extension is compared against the names that should be loaded by
# the manager.
init_name = 'stevedore.tests.test_extension.FauxExtension.__init__'
with mock.patch(init_name) as m:
m.side_effect = AssertionError
em = named.NamedExtensionManager(
'stevedore.test.extension',
# Look for an extension that does not exist so the
# __init__ we mocked should never be invoked.
names=['no-such-extension'],
invoke_on_load=True,
invoke_args=('a',),
invoke_kwds={'b': 'B'},
)
actual = em.names()
assert actual == []
def test_extensions_listed_in_name_order():
# Since we don't know the "natural" order of the extensions, run
# the test both ways: if the sorting is broken, one of them will
# fail
em = named.NamedExtensionManager(
'stevedore.test.extension',
names=['t1', 't2'],
name_order=True
)
actual = em.names()
assert actual == ['t1', 't2']
em = named.NamedExtensionManager(
'stevedore.test.extension',
names=['t2', 't1'],
name_order=True
)
actual = em.names()
assert actual == ['t2', 't1']