def test_trims_leading_trailing_spaces(self):
auth = self.create_signer()
original = HTTPHeaders()
original['foo'] = ' leading and trailing '
headers = auth.canonical_headers(original)
self.assertEqual(headers, 'foo:leading and trailing')
def test_collapse_multiple_spaces(self):
auth = self.create_signer()
original = HTTPHeaders()
original['foo'] = 'double space'
headers = auth.canonical_headers(original)
self.assertEqual(headers, 'foo:double space')
