def test_case(self):
"""Create a :class:`unittest.TestCase` class from this collection.
Tests in the collection are added as instance methods on the
``TestCase``. Method names are prefixed with ``test_`` if they're not
already. Duplicate method names are given a ``_#`` suffix.
.. testsetup::
from attest import Tests
Example::
>>> suite = Tests()
>>> @suite.test
... def simple():
... pass
...
>>> @suite.test
... def simple():
... pass
...
>>> TestCase = suite.test_case()
>>> assert TestCase.test_simple
>>> assert TestCase.test_simple_2
"""
from unittest import TestCase
counts = counter()
methods = {}
for func in self:
# handle <lambda>
name = re.sub("[^a-zA-Z0-9_]", "", func.__name__)
if not name:
name = "unnamed"
if not name.startswith("test_"):
name = "test_%s" % (name, )
count = counts.increment(name)
if count > 1:
name = "%s_%s" % (name, count)
methods[name] = staticmethod(func)
return type("Tests", (TestCase, ), methods)
def counter():
counter = utils.counter()
assert counter.increment("a") == 1
assert counter == {"a": 1}
def counter():
counter = utils.counter()
assert counter.increment("a") == 1
assert counter == {"a": 1}