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[paperdoorknob] / fetch_test.py
1 # paperdoorknob: Print glowfic
2 #
3 # This program is free software: you can redistribute it and/or modify it
4 # under the terms of the GNU General Public License as published by the
5 # Free Software Foundation, version 3.
6
7
8 from io import StringIO
9 import unittest
10
11 from requests import HTTPError
12
13 from testing.fakeserver import FakeGlowficServer
14 from fetch import CachingFetcher, DirectFetcher
15
16 TIMEOUT = 8
17
18
19 class TestFetch(unittest.TestCase):
20 def setUp(self) -> None:
21 self._server = self.enterContext(FakeGlowficServer())
22 self._port = self._server.port()
23
24 def testDirectFetch(self) -> None:
25 with DirectFetcher(TIMEOUT) as f:
26 f.fetch(f"http://localhost:{self._port}")
27 self.assertEqual(self._server.request_count(), 1)
28 f.fetch(f"http://localhost:{self._port}")
29 self.assertEqual(self._server.request_count(), 2)
30
31 def testFetchCaching(self) -> None:
32 with CachingFetcher("testcache", TIMEOUT) as f:
33 f.fetch(f"http://localhost:{self._port}")
34 self.assertEqual(self._server.request_count(), 1)
35 f.fetch(f"http://localhost:{self._port}")
36 self.assertEqual(self._server.request_count(), 1)
37
38 def testFetchPersistentCaching(self) -> None:
39 with CachingFetcher("testpersistentcache", TIMEOUT) as f:
40 f.fetch(f"http://localhost:{self._port}")
41 self.assertEqual(self._server.request_count(), 1)
42 with CachingFetcher("testpersistentcache", TIMEOUT) as f:
43 f.fetch(f"http://localhost:{self._port}")
44 self.assertEqual(self._server.request_count(), 1)
45
46 def testCacheHitRateReport(self) -> None:
47 buf = StringIO()
48
49 def log(msg: str) -> None:
50 print(msg, file=buf)
51 with CachingFetcher("testcachehitratereportwithcl", TIMEOUT, log) as f:
52 for _ in range(7):
53 f.fetch(f"http://localhost:{self._port}")
54 self.assertEqual("Fetch cache hits: 6 (85.7%)\n", buf.getvalue())
55
56 def testFetchErrors(self) -> None:
57 with DirectFetcher(TIMEOUT) as f:
58 with self.assertRaises(HTTPError):
59 f.fetch(f"http://localhost:{self._port}/not_found")
60 with self.assertRaises(HTTPError):
61 f.fetch(f"http://localhost:{self._port}/server_error")
62 with CachingFetcher("testerrorscache", TIMEOUT) as f:
63 with self.assertRaises(HTTPError):
64 f.fetch(f"http://localhost:{self._port}/not_found")
65 with self.assertRaises(HTTPError):
66 f.fetch(f"http://localhost:{self._port}/server_error")
67
68
69 if __name__ == '__main__':
70 unittest.main()