gh-108996: fix and enable test_msvcrt #109226
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Lib/test/test_msvcrt.py
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| @@ -1,9 +1,8 @@ | |||
| import ctypes | |||
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ctypes is not always available. Please use try: import ctypes except ImportError: ctypes = None, and then skip tests using ctypes if ctypes is None.
Lib/test/test_msvcrt.py
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| sys.stdin = old_stdin | ||
| with open('CONIN$', 'rb', buffering=0) as stdin: | ||
| h = msvcrt.get_osfhandle(stdin.fileno()) | ||
| ctypes.windll.kernel32.FlushConsoleInputBuffer(h) |
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Maybe it should be exposed in msvcrt, maybe as a private function just for testing.
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@vstinner Current implementation doesn't failes in latest two runs, maybe it's been fixed. But the freebsd tests failed: I think it's weird, the tests should not run on freebsd. |
The test failed because ctypes is not available on this FreeBSD CI:
I told you, in tests, you should tolerate that ctypes is not available. Or write a wrapper to FlushConsoleInputBuffer() in |
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@vstinner Ah sorry, just understood what you mean above... |
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This change passed the tests in the last three times, I think it's ready to review. |
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Latest run failed because of freebsd test instance out of limit, not related to this change. |
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I don't have any further feedback. @vstinner are you happy with this? |
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!buildbot Windows |
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!buildbot AMD64 Windows |
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🤖 New build scheduled with the buildbot fleet by @vstinner for commit dfd3992 🤖 The command will test the builders whose names match following regular expression: The builders matched are:
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Let's see if buildbots are happy :-) |
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Tests passed on these 4 Windows buildbots: good.
Example on ARM64 Windows Non-Debug PR: |
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Merged, thanks @aisk for your contribution. Let's see how it goes this time :-) I'm not surprised that these tests failed. It's hard to write reliable tests on a terminal :-( Calling FlushConsoleInputBuffer() seems to make tests more reliable: good! I enhanced/completed the commit message. |
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Thanks for the review! |
* Add _testconsole.flush_console_input_buffer() function. * test_kbhit(), test_getwch() and test_getwche() now call flush_console_input_buffer(). * Don't override sys.stdin anymore (not needed).
More details: #109004