Refactor the __fetch_manifest() code so that the a successful response is immediately handled and we don't end up with an undefined 'response' on an exception. Also update the tests to return two mocked reponses to match the size of the url_list.

This commit is contained in:
Francis Ginther 2015-06-05 11:08:48 -05:00
parent 7e38fec3cb
commit ca1fc41f9e
2 changed files with 18 additions and 12 deletions

View File

@ -92,21 +92,21 @@ class TouchManifest(object):
try:
response = urllib.urlopen(url)
if response.code == 200:
# Only [re]create the manifest file if one was successfully
# downloaded. This allows for an existing image to be used
# if the download fails.
path_dir = os.path.dirname(self.path)
if not os.path.exists(path_dir):
os.makedirs(path_dir)
with open(self.path, 'w') as fp:
fp.write(response.read())
success = True
break
except IOError as e:
print("W: [%s] - error connecting to %s: %s" % (
time.asctime(), self.path, e))
# Only [re]create the manifest file if one was successfully downloaded
# this allows for an existing image to be used if the download fails.
if response.code == 200:
path_dir = os.path.dirname(self.path)
if not os.path.exists(path_dir):
os.makedirs(path_dir)
with open(self.path, 'w') as fp:
fp.write(response.read())
success = True
return success
def _load(self):

View File

@ -49,7 +49,10 @@ class TestTouchManifest(unittest.TestCase):
self.addCleanup(shutil.rmtree, self.path)
_p = mock.patch('urllib.urlopen')
self.mocked_urlopen = _p.start()
self.mocked_urlopen.side_effect = [FakeResponse(code=404),]
self.mocked_urlopen.side_effect = [
FakeResponse(code=404),
FakeResponse(code=404),
]
self.addCleanup(_p.stop)
self.fetch_retries_orig = boottest.FETCH_RETRIES
def restore_fetch_retries():
@ -90,7 +93,10 @@ class TestTouchManifest(unittest.TestCase):
self.assertIn('foo', manifest)
def test_fetch_exception(self):
self.mocked_urlopen.side_effect = [IOError("connection refused")]
self.mocked_urlopen.side_effect = [
IOError("connection refused"),
IOError("connection refused"),
]
manifest = boottest.TouchManifest('not-real', 'not-real')
self.assertEqual(0, len(manifest._manifest))