def get_headers(headers: HTTPHeaders) -> Mapping[str, List[str]]:
""" Tornado's HTTPHeaders contains multiple entries of the same header name if multiple values were used, this
function groups headers by header name. See documentation of `tornado.httputil.HTTPHeaders` """
return {
header.lower(): headers.get_list(header)
for header in headers.keys()
}
def test_copy(self):
all_pairs = [('A', '1'), ('A', '2'), ('B', 'c')]
h1 = HTTPHeaders()
for k, v in all_pairs:
h1.add(k, v)
h2 = h1.copy()
h3 = copy.copy(h1)
h4 = copy.deepcopy(h1)
for headers in [h1, h2, h3, h4]:
# All the copies are identical, no matter how they were
# constructed.
self.assertEqual(list(sorted(headers.get_all())), all_pairs)
for headers in [h2, h3, h4]:
# Neither the dict or its member lists are reused.
self.assertIsNot(headers, h1)
self.assertIsNot(headers.get_list('A'), h1.get_list('A'))
def test_copy(self):
all_pairs = [('A', '1'), ('A', '2'), ('B', 'c')]
h1 = HTTPHeaders()
for k, v in all_pairs:
h1.add(k, v)
h2 = h1.copy()
h3 = copy.copy(h1)
h4 = copy.deepcopy(h1)
for headers in [h1, h2, h3, h4]:
# All the copies are identical, no matter how they were
# constructed.
self.assertEqual(list(sorted(headers.get_all())), all_pairs)
for headers in [h2, h3, h4]:
# Neither the dict or its member lists are reused.
self.assertIsNot(headers, h1)
self.assertIsNot(headers.get_list('A'), h1.get_list('A'))