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import unittest
from io import BytesIO, BufferedReader
from urllib3.response import HTTPResponse
from urllib3.exceptions import DecodeError
class TestLegacyResponse(unittest.TestCase):
def test_getheaders(self):
headers = {'host': 'example.com'}
r = HTTPResponse(headers=headers)
self.assertEqual(r.getheaders(), headers)
def test_getheader(self):
headers = {'host': 'example.com'}
r = HTTPResponse(headers=headers)
self.assertEqual(r.getheader('host'), 'example.com')
class TestResponse(unittest.TestCase):
def test_cache_content(self):
r = HTTPResponse('foo')
self.assertEqual(r.data, 'foo')
self.assertEqual(r._body, 'foo')
def test_default(self):
r = HTTPResponse()
self.assertEqual(r.data, None)
def test_none(self):
r = HTTPResponse(None)
self.assertEqual(r.data, None)
def test_preload(self):
fp = BytesIO(b'foo')
r = HTTPResponse(fp, preload_content=True)
self.assertEqual(fp.tell(), len(b'foo'))
self.assertEqual(r.data, b'foo')
def test_no_preload(self):
fp = BytesIO(b'foo')
r = HTTPResponse(fp, preload_content=False)
self.assertEqual(fp.tell(), 0)
self.assertEqual(r.data, b'foo')
self.assertEqual(fp.tell(), len(b'foo'))
def test_decode_bad_data(self):
fp = BytesIO(b'\x00' * 10)
self.assertRaises(DecodeError, HTTPResponse, fp, headers={
'content-encoding': 'deflate'
})
def test_decode_deflate(self):
import zlib
data = zlib.compress(b'foo')
fp = BytesIO(data)
r = HTTPResponse(fp, headers={'content-encoding': 'deflate'})
self.assertEqual(r.data, b'foo')
def test_decode_deflate_case_insensitve(self):
import zlib
data = zlib.compress(b'foo')
fp = BytesIO(data)
r = HTTPResponse(fp, headers={'content-encoding': 'DeFlAtE'})
self.assertEqual(r.data, b'foo')
def test_chunked_decoding_deflate(self):
import zlib
data = zlib.compress(b'foo')
fp = BytesIO(data)
r = HTTPResponse(fp, headers={'content-encoding': 'deflate'},
preload_content=False)
self.assertEqual(r.read(3), b'')
self.assertEqual(r.read(1), b'f')
self.assertEqual(r.read(2), b'oo')
def test_chunked_decoding_deflate2(self):
import zlib
compress = zlib.compressobj(6, zlib.DEFLATED, -zlib.MAX_WBITS)
data = compress.compress(b'foo')
data += compress.flush()
fp = BytesIO(data)
r = HTTPResponse(fp, headers={'content-encoding': 'deflate'},
preload_content=False)
self.assertEqual(r.read(1), b'')
self.assertEqual(r.read(1), b'f')
self.assertEqual(r.read(2), b'oo')
def test_chunked_decoding_gzip(self):
import zlib
compress = zlib.compressobj(6, zlib.DEFLATED, 16 + zlib.MAX_WBITS)
data = compress.compress(b'foo')
data += compress.flush()
fp = BytesIO(data)
r = HTTPResponse(fp, headers={'content-encoding': 'gzip'},
preload_content=False)
self.assertEqual(r.read(11), b'')
self.assertEqual(r.read(1), b'f')
self.assertEqual(r.read(2), b'oo')
def test_io(self):
import socket
try:
from http.client import HTTPResponse as OldHTTPResponse
except:
from httplib import HTTPResponse as OldHTTPResponse
fp = BytesIO(b'foo')
resp = HTTPResponse(fp, preload_content=False)
self.assertEqual(resp.closed, False)
self.assertEqual(resp.readable(), True)
self.assertEqual(resp.writable(), False)
self.assertRaises(IOError, resp.fileno)
resp.close()
self.assertEqual(resp.closed, True)
# Try closing with an `httplib.HTTPResponse`, because it has an
# `isclosed` method.
hlr = OldHTTPResponse(socket.socket())
resp2 = HTTPResponse(hlr, preload_content=False)
self.assertEqual(resp2.closed, False)
resp2.close()
self.assertEqual(resp2.closed, True)
#also try when only data is present.
resp3 = HTTPResponse('foodata')
self.assertRaises(IOError, resp3.fileno)
resp3._fp = 2
# A corner case where _fp is present but doesn't have `closed`,
# `isclosed`, or `fileno`. Unlikely, but possible.
self.assertEqual(resp3.closed, True)
self.assertRaises(IOError, resp3.fileno)
def test_io_bufferedreader(self):
fp = BytesIO(b'foo')
resp = HTTPResponse(fp, preload_content=False)
br = BufferedReader(resp)
self.assertEqual(br.read(), b'foo')
br.close()
self.assertEqual(resp.closed, True)
def test_streaming(self):
fp = BytesIO(b'foo')
resp = HTTPResponse(fp, preload_content=False)
stream = resp.stream(2, decode_content=False)
self.assertEqual(next(stream), b'fo')
self.assertEqual(next(stream), b'o')
self.assertRaises(StopIteration, next, stream)
def test_gzipped_streaming(self):
import zlib
compress = zlib.compressobj(6, zlib.DEFLATED, 16 + zlib.MAX_WBITS)
data = compress.compress(b'foo')
data += compress.flush()
fp = BytesIO(data)
resp = HTTPResponse(fp, headers={'content-encoding': 'gzip'},
preload_content=False)
stream = resp.stream(2)
self.assertEqual(next(stream), b'f')
self.assertEqual(next(stream), b'oo')
self.assertRaises(StopIteration, next, stream)
def test_deflate_streaming(self):
import zlib
data = zlib.compress(b'foo')
fp = BytesIO(data)
resp = HTTPResponse(fp, headers={'content-encoding': 'deflate'},
preload_content=False)
stream = resp.stream(2)
self.assertEqual(next(stream), b'f')
self.assertEqual(next(stream), b'oo')
self.assertRaises(StopIteration, next, stream)
def test_deflate2_streaming(self):
import zlib
compress = zlib.compressobj(6, zlib.DEFLATED, -zlib.MAX_WBITS)
data = compress.compress(b'foo')
data += compress.flush()
fp = BytesIO(data)
resp = HTTPResponse(fp, headers={'content-encoding': 'deflate'},
preload_content=False)
stream = resp.stream(2)
self.assertEqual(next(stream), b'f')
self.assertEqual(next(stream), b'oo')
self.assertRaises(StopIteration, next, stream)
def test_empty_stream(self):
fp = BytesIO(b'')
resp = HTTPResponse(fp, preload_content=False)
stream = resp.stream(2, decode_content=False)
self.assertRaises(StopIteration, next, stream)
def test_mock_httpresponse_stream(self):
# Mock out a HTTP Request that does enough to make it through urllib3's
# read() and close() calls, and also exhausts and underlying file
# object.
class MockHTTPRequest(object):
self.fp = None
def read(self, amt):
data = self.fp.read(amt)
if not data:
self.fp = None
return data
def close(self):
self.fp = None
bio = BytesIO(b'foo')
fp = MockHTTPRequest()
fp.fp = bio
resp = HTTPResponse(fp, preload_content=False)
stream = resp.stream(2)
self.assertEqual(next(stream), b'fo')
self.assertEqual(next(stream), b'o')
self.assertRaises(StopIteration, next, stream)
if __name__ == '__main__':
unittest.main()
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