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#! /usr/bin/env python
# -*- coding: utf-8 -*-
from grequests import get, map, imap
########### Constants ############
urls = [
'http://github.com',
'http://www.google.com',
'http://www.psf.org'
]
############# tests ##############
def test_get():
global urls
to_fetch = (get(url) for url in urls)
map(to_fetch)
for fetched in to_fetch:
assert fetched.ok
def test_imap_with_size():
global urls
to_fetch = (get(url) for url in urls)
imap(to_fetch, size = len(urls) - 1)
for fetching in to_fetch:
assert fetching.send()
import os
import time
import unittest
import requests
from requests.exceptions import Timeout
import grequests
HTTPBIN_URL = os.environ.get('HTTPBIN_URL', 'http://httpbin.org/')
def httpbin(*suffix):
"""Returns url for HTTPBIN resource."""
return HTTPBIN_URL + '/'.join(suffix)
N = 5
URLS = [httpbin('get?p=%s' % i) for i in range(N)]
class GrequestsCase(unittest.TestCase):
def test_map(self):
reqs = [grequests.get(url) for url in URLS]
resp = grequests.map(reqs, size=N)
self.assertEqual([r.url for r in resp], URLS)
def test_imap(self):
reqs = (grequests.get(url) for url in URLS)
i = 0
for i, r in enumerate(grequests.imap(reqs, size=N)):
self.assertTrue(r.url in URLS)
self.assertEqual(i, N - 1)
def test_hooks(self):
result = {}
def hook(r, **kwargs):
result[r.url] = True
return r
reqs = [grequests.get(url, hooks={'response': [hook]}) for url in URLS]
grequests.map(reqs, size=N)
self.assertEqual(sorted(result.keys()), sorted(URLS))
def test_callback_kwarg(self):
result = {'ok': False}
def callback(r, **kwargs):
result['ok'] = True
return r
self.get(URLS[0], callback=callback)
self.assertTrue(result['ok'])
def test_session_and_cookies(self):
c1 = {'k1': 'v1'}
r = self.get(httpbin('cookies/set'), params=c1).json()
self.assertEqual(r['cookies'], c1)
s = requests.Session()
r = self.get(httpbin('cookies/set'), session=s, params=c1).json()
self.assertEqual(dict(s.cookies), c1)
# ensure all cookies saved
c2 = {'k2': 'v2'}
c1.update(c2)
r = self.get(httpbin('cookies/set'), session=s, params=c2).json()
self.assertEqual(dict(s.cookies), c1)
# ensure new session is created
r = self.get(httpbin('cookies')).json()
self.assertEqual(r['cookies'], {})
# cookies as param
c3 = {'p1': '42'}
r = self.get(httpbin('cookies'), cookies=c3).json()
self.assertEqual(r['cookies'], c3)
def test_calling_request(self):
reqs = [grequests.request('POST', httpbin('post'), data={'p': i})
for i in range(N)]
resp = grequests.map(reqs, size=N)
self.assertEqual([int(r.json()['form']['p']) for r in resp], list(range(N)))
def test_stream_enabled(self):
r = grequests.map([grequests.get(httpbin('stream/10'))],
size=2, stream=True)[0]
self.assertFalse(r._content_consumed)
def test_concurrency_with_delayed_url(self):
t = time.time()
n = 10
reqs = [grequests.get(httpbin('delay/1')) for _ in range(n)]
grequests.map(reqs, size=n)
self.assertLess((time.time() - t), n)
def test_map_timeout_no_exception_handler(self):
"""
compliance with existing 0.2.0 behaviour
"""
reqs = [grequests.get(httpbin('delay/1'), timeout=0.001), grequests.get(httpbin('/'))]
responses = grequests.map(reqs)
self.assertIsNone(responses[0])
self.assertTrue(responses[1].ok)
self.assertEqual(len(responses), 2)
def test_map_timeout_exception_handler_no_return(self):
"""
ensure default behaviour for a handler that returns None
"""
def exception_handler(request, exception):
pass
reqs = [grequests.get(httpbin('delay/1'), timeout=0.001), grequests.get(httpbin('/'))]
responses = grequests.map(reqs, exception_handler=exception_handler)
self.assertIsNone(responses[0])
self.assertTrue(responses[1].ok)
self.assertEqual(len(responses), 2)
def test_map_timeout_exception_handler_returns_exception(self):
"""
ensure returned value from exception handler is stuffed in the map result
"""
def exception_handler(request, exception):
return exception
reqs = [grequests.get(httpbin('delay/1'), timeout=0.001), grequests.get(httpbin('/'))]
responses = grequests.map(reqs, exception_handler=exception_handler)
self.assertIsInstance(responses[0], Timeout)
self.assertTrue(responses[1].ok)
self.assertEqual(len(responses), 2)
def test_imap_timeout_no_exception_handler(self):
"""
compliance with existing 0.2.0 behaviour
"""
reqs = [grequests.get(httpbin('delay/1'), timeout=0.001)]
out = []
try:
for r in grequests.imap(reqs):
out.append(r)
except Timeout:
pass
self.assertEqual(out, [])
def test_imap_timeout_exception_handler_no_return(self):
"""
ensure imap-default behaviour for a handler that returns None
"""
def exception_handler(request, exception):
pass
reqs = [grequests.get(httpbin('delay/1'), timeout=0.001)]
out = []
for r in grequests.imap(reqs, exception_handler=exception_handler):
out.append(r)
self.assertEqual(out, [])
def test_imap_timeout_exception_handler_returns_value(self):
"""
ensure behaviour for a handler that returns a value
"""
def exception_handler(request, exception):
return 'a value'
reqs = [grequests.get(httpbin('delay/1'), timeout=0.001)]
out = []
for r in grequests.imap(reqs, exception_handler=exception_handler):
out.append(r)
self.assertEqual(out, ['a value'])
def test_map_timeout_exception(self):
class ExceptionHandler:
def __init__(self):
self.counter = 0
def callback(self, request, exception):
self.counter += 1
eh = ExceptionHandler()
reqs = [grequests.get(httpbin('delay/1'), timeout=0.001)]
list(grequests.map(reqs, exception_handler=eh.callback))
self.assertEqual(eh.counter, 1)
def test_imap_timeout_exception(self):
class ExceptionHandler:
def __init__(self):
self.counter = 0
def callback(self, request, exception):
self.counter += 1
eh = ExceptionHandler()
reqs = [grequests.get(httpbin('delay/1'), timeout=0.001)]
list(grequests.imap(reqs, exception_handler=eh.callback))
self.assertEqual(eh.counter, 1)
def get(self, url, **kwargs):
return grequests.map([grequests.get(url, **kwargs)])[0]
if __name__ == '__main__':
unittest.main()
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