def test_retrieve_ca_cert_no_file(self, _isfile):
_isfile.return_value = False
with patch_open() as (_open, _file):
self.assertEqual(apache_utils.retrieve_ca_cert('mycertfile'), None)
self.assertFalse(_open.called)
def test_retrieve_ca_cert(self, _isfile):
_isfile.return_value = True
with patch_open() as (_open, _file):
_file.read.return_value = cert
self.assertEqual(apache_utils.retrieve_ca_cert('mycertfile'), cert)
_open.assert_called_once_with('mycertfile', 'rb')