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[paperdoorknob] / paperdoorknob_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 import unittest
9 import threading
10 from http.server import BaseHTTPRequestHandler, HTTPServer
11 import requests
12 import requests_cache
13 import paperdoorknob
14
15 TIMEOUT = 8
16
17
18 class FakeGlowficHTTPRequestHandler(BaseHTTPRequestHandler):
19
20 def _notify_test(self) -> None:
21 raise NotImplementedError()
22
23 def _response_code(self) -> int:
24 if self.path == "/not_found":
25 return 404
26 if self.path == "/server_error":
27 return 500
28 return 200
29
30 def do_GET(self) -> None:
31 body = b'<html><body>This is glowfic</body></html>'
32 self.send_response(self._response_code())
33 self.send_header("Content-type", "text/html")
34 self.send_header("Content-Length", str(len(body)))
35 self.end_headers()
36 self.wfile.write(body)
37 self._notify_test()
38
39
40 class TestFetch(unittest.TestCase):
41 def _port(self) -> int:
42 port = self._web_server.socket.getsockname()[1]
43 assert isinstance(port, int)
44 return port
45
46 def _count_request(self) -> None:
47 self._request_counter += 1
48
49 def setUp(self) -> None:
50 self._request_counter = 0
51 handler = type("Handler", (FakeGlowficHTTPRequestHandler,), {
52 '_notify_test': lambda _: self._count_request()})
53 self._web_server = HTTPServer(('', 0), handler)
54 self._thread = threading.Thread(target=self._web_server.serve_forever)
55 self._thread.start()
56
57 def tearDown(self) -> None:
58 self._web_server.shutdown()
59 self._thread.join()
60 self._web_server.server_close()
61
62 def testFetch(self) -> None:
63 with requests.session() as s:
64 paperdoorknob.fetch(f"http://localhost:{self._port()}", s, TIMEOUT)
65 self.assertEqual(self._request_counter, 1)
66 paperdoorknob.fetch(f"http://localhost:{self._port()}", s, TIMEOUT)
67 self.assertEqual(self._request_counter, 2)
68
69 def testFetchCaching(self) -> None:
70 with requests_cache.CachedSession() as s:
71 paperdoorknob.fetch(f"http://localhost:{self._port()}", s, TIMEOUT)
72 self.assertEqual(self._request_counter, 1)
73 paperdoorknob.fetch(f"http://localhost:{self._port()}", s, TIMEOUT)
74 self.assertEqual(self._request_counter, 1)
75
76 def testFetchErrors(self) -> None:
77 with requests.session() as s:
78 with self.assertRaises(requests.HTTPError):
79 paperdoorknob.fetch(
80 f"http://localhost:{self._port()}/not_found", s, TIMEOUT)
81 with self.assertRaises(requests.HTTPError):
82 paperdoorknob.fetch(
83 f"http://localhost:{self._port()}/server_error", s, TIMEOUT)
84
85
86 if __name__ == '__main__':
87 unittest.main()