def test_create_cache_dir():
"""
Test to make sure that create_cache_dir() does the right path calculation.
"""
# build a fake cache_dir location
tempdir = tempfile.mkdtemp()
fake_dir = os.path.join(tempdir, 'CACHE_DIR')
fake_pkg = os.path.join(fake_dir, 'SOME_PACKAGE')
# use dependency injection to replace 'os.path.isdir' and 'os.mkdir'
# in order to test create_cache_dir.
def false(X):
return False
def noop(Y, expected_dirname=fake_dir):
print 'NOOP GOT', Y
Y = Y.rstrip(os.path.sep)
expected_dirname = expected_dirname.rstrip(os.path.sep)
assert Y == expected_dirname, \
'fake mkdir got %s, expected %s' % (Y, expected_dirname)
# replace stdlib functions
_old_isdir, os.path.isdir = os.path.isdir, false
_old_mkdir, os.mkdir = os.mkdir, noop
try:
pony_client.create_cache_dir(fake_pkg, 'SOME_PACKAGE')
# here, the 'noop' function is actually doing the test.
finally:
# put stdlib functions back
os.path.isdir, os.mkdir = _old_isdir, _old_mkdir
shutil.rmtree(tempdir)
def create_cache_location(repository_url):
# use os.environ to specify a new place for VCS cache stuff
temp_cache_parent = tempfile.mkdtemp()
temp_cache_location = os.path.join(temp_cache_parent, "the_cache")
os.environ['PONY_BUILD_CACHE'] = temp_cache_location
# figure out what the end checkout result should be
repository_path = urlparse.urlparse(repository_url)[2]
repository_dirname = repository_path.rstrip('/').split('/')[-1]
print 'calculated repository dirname as:', repository_dirname
(_, repository_cache) = pony_client.guess_cache_dir(repository_dirname)
assert repository_cache.startswith(temp_cache_location)
# this will create 'the_cache' directory that contains individual
# pkg caches.
pony_client.create_cache_dir(repository_cache, repository_dirname)
assert os.path.isdir(temp_cache_location)
return (temp_cache_parent, temp_cache_location)