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Copilotandchrislusf
73fa85f54f
* Initial plan * Retry transient star history API failures Co-authored-by: chrislusf <1543151+chrislusf@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: chrislusf <1543151+chrislusf@users.noreply.github.com>
76 lines
2.4 KiB
Python
76 lines
2.4 KiB
Python
import importlib.util
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import os
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from pathlib import Path
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import sys
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import types
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import unittest
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from unittest.mock import patch
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from urllib.error import HTTPError
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def load_star_history():
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matplotlib = types.ModuleType("matplotlib")
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matplotlib.use = lambda backend: None
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pyplot = types.ModuleType("matplotlib.pyplot")
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dates = types.ModuleType("matplotlib.dates")
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dates.AutoDateLocator = object
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dates.DateFormatter = object
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modules = {
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"matplotlib": matplotlib,
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"matplotlib.pyplot": pyplot,
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"matplotlib.dates": dates,
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}
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with patch.dict(sys.modules, modules), patch.dict(os.environ, {"GITHUB_TOKEN": "test"}):
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path = Path(__file__).with_name("star_history.py")
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spec = importlib.util.spec_from_file_location("star_history", path)
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module = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(module)
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return module
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star_history = load_star_history()
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class StarHistoryTests(unittest.TestCase):
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def http_error(self, code):
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return HTTPError("https://api.github.com", code, "error", {}, None)
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@patch.object(star_history.time, "sleep")
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@patch.object(star_history.urllib.request, "urlopen")
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def test_retries_server_error(self, urlopen, sleep):
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response = object()
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urlopen.side_effect = [self.http_error(500), response]
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result = star_history.open_url(object())
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self.assertIs(result, response)
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self.assertEqual(urlopen.call_count, 2)
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sleep.assert_called_once_with(1)
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@patch.object(star_history.time, "sleep")
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@patch.object(star_history.urllib.request, "urlopen")
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def test_does_not_retry_non_transient_http_error(self, urlopen, sleep):
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error = self.http_error(404)
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urlopen.side_effect = error
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with self.assertRaises(HTTPError):
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star_history.open_url(object())
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urlopen.assert_called_once()
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sleep.assert_not_called()
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@patch.object(star_history.time, "sleep")
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@patch.object(star_history.urllib.request, "urlopen")
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def test_stops_after_retry_limit(self, urlopen, sleep):
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urlopen.side_effect = self.http_error(500)
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with self.assertRaises(HTTPError):
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star_history.open_url(object())
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self.assertEqual(urlopen.call_count, star_history.REQUEST_ATTEMPTS)
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self.assertEqual(sleep.call_count, star_history.REQUEST_ATTEMPTS - 1)
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if __name__ == "__main__":
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unittest.main()
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