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........ r70734 | r.david.murray | 2009-03-30 15:04:00 -0400 (Mon, 30 Mar 2009) | 7 lines Add import_function method to test.test_support, and modify a number of tests that expect to be skipped if imports fail or functions don't exist to use import_function and import_module. The ultimate goal is to change regrtest to not skip automatically on ImportError. Checking in now to make sure the buldbots don't show any errors on platforms I can't direct test on. ........ r70775 | r.david.murray | 2009-03-30 19:05:48 -0400 (Mon, 30 Mar 2009) | 4 lines Change more tests to use import_module for the modules that should cause tests to be skipped. Also rename import_function to the more descriptive get_attribute and add a docstring. ........ r70856 | r.david.murray | 2009-03-31 14:32:17 -0400 (Tue, 31 Mar 2009) | 7 lines A few more test skips via import_module, and change import_module to return the error message produced by importlib, so that if an import in the package whose import is being wrapped is what failed the skip message will contain the name of that module instead of the name of the wrapped module. Also fixed formatting of some previous comments. ........ r70874 | r.david.murray | 2009-03-31 15:33:15 -0400 (Tue, 31 Mar 2009) | 5 lines Improve test_support.import_module docstring, remove deprecated flag from get_attribute since it isn't likely to do anything useful. ........ r70876 | r.david.murray | 2009-03-31 15:49:15 -0400 (Tue, 31 Mar 2009) | 4 lines Remove the regrtest check that turns any ImportError into a skipped test. Hopefully all modules whose imports legitimately result in a skipped test have been properly wrapped by the previous commits. ........ r70877 | r.david.murray | 2009-03-31 15:57:24 -0400 (Tue, 31 Mar 2009) | 2 lines Add NEWS entry for regrtest change. ........
235 lines
7.9 KiB
Python
235 lines
7.9 KiB
Python
# Ridiculously simple test of the winsound module for Windows.
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import unittest
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from test import support
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support.requires('audio')
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import time
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import os
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import subprocess
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winsound = support.import_module('winsound')
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class BeepTest(unittest.TestCase):
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# As with PlaySoundTest, incorporate the _have_soundcard() check
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# into our test methods. If there's no audio device present,
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# winsound.Beep returns 0 and GetLastError() returns 127, which
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# is: ERROR_PROC_NOT_FOUND ("The specified procedure could not
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# be found"). (FWIW, virtual/Hyper-V systems fall under this
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# scenario as they have no sound devices whatsoever (not even
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# a legacy Beep device).)
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def test_errors(self):
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self.assertRaises(TypeError, winsound.Beep)
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self.assertRaises(ValueError, winsound.Beep, 36, 75)
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self.assertRaises(ValueError, winsound.Beep, 32768, 75)
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def test_extremes(self):
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self._beep(37, 75)
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self._beep(32767, 75)
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def test_increasingfrequency(self):
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for i in range(100, 2000, 100):
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self._beep(i, 75)
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def _beep(self, *args):
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# these tests used to use _have_soundcard(), but it's quite
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# possible to have a soundcard, and yet have the beep driver
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# disabled. So basically, we have no way of knowing whether
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# a beep should be produced or not, so currently if these
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# tests fail we're ignoring them
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#
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# XXX the right fix for this is to define something like
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# _have_enabled_beep_driver() and use that instead of the
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# try/except below
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try:
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winsound.Beep(*args)
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except RuntimeError:
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pass
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class MessageBeepTest(unittest.TestCase):
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def tearDown(self):
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time.sleep(0.5)
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def test_default(self):
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self.assertRaises(TypeError, winsound.MessageBeep, "bad")
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self.assertRaises(TypeError, winsound.MessageBeep, 42, 42)
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winsound.MessageBeep()
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def test_ok(self):
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winsound.MessageBeep(winsound.MB_OK)
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def test_asterisk(self):
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winsound.MessageBeep(winsound.MB_ICONASTERISK)
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def test_exclamation(self):
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winsound.MessageBeep(winsound.MB_ICONEXCLAMATION)
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def test_hand(self):
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winsound.MessageBeep(winsound.MB_ICONHAND)
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def test_question(self):
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winsound.MessageBeep(winsound.MB_ICONQUESTION)
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class PlaySoundTest(unittest.TestCase):
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def test_errors(self):
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self.assertRaises(TypeError, winsound.PlaySound)
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self.assertRaises(TypeError, winsound.PlaySound, "bad", "bad")
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self.assertRaises(
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RuntimeError,
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winsound.PlaySound,
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"none", winsound.SND_ASYNC | winsound.SND_MEMORY
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)
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def test_alias_asterisk(self):
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if _have_soundcard():
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winsound.PlaySound('SystemAsterisk', winsound.SND_ALIAS)
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else:
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self.assertRaises(
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RuntimeError,
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winsound.PlaySound,
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'SystemAsterisk', winsound.SND_ALIAS
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)
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def test_alias_exclamation(self):
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if _have_soundcard():
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winsound.PlaySound('SystemExclamation', winsound.SND_ALIAS)
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else:
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self.assertRaises(
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RuntimeError,
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winsound.PlaySound,
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'SystemExclamation', winsound.SND_ALIAS
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)
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def test_alias_exit(self):
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if _have_soundcard():
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winsound.PlaySound('SystemExit', winsound.SND_ALIAS)
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else:
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self.assertRaises(
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RuntimeError,
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winsound.PlaySound,
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'SystemExit', winsound.SND_ALIAS
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)
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def test_alias_hand(self):
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if _have_soundcard():
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winsound.PlaySound('SystemHand', winsound.SND_ALIAS)
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else:
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self.assertRaises(
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RuntimeError,
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winsound.PlaySound,
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'SystemHand', winsound.SND_ALIAS
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)
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def test_alias_question(self):
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if _have_soundcard():
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winsound.PlaySound('SystemQuestion', winsound.SND_ALIAS)
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else:
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self.assertRaises(
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RuntimeError,
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winsound.PlaySound,
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'SystemQuestion', winsound.SND_ALIAS
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)
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def test_alias_fallback(self):
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# This test can't be expected to work on all systems. The MS
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# PlaySound() docs say:
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#
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# If it cannot find the specified sound, PlaySound uses the
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# default system event sound entry instead. If the function
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# can find neither the system default entry nor the default
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# sound, it makes no sound and returns FALSE.
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#
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# It's known to return FALSE on some real systems.
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# winsound.PlaySound('!"$%&/(#+*', winsound.SND_ALIAS)
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return
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def test_alias_nofallback(self):
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if _have_soundcard():
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# Note that this is not the same as asserting RuntimeError
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# will get raised: you cannot convert this to
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# self.assertRaises(...) form. The attempt may or may not
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# raise RuntimeError, but it shouldn't raise anything other
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# than RuntimeError, and that's all we're trying to test
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# here. The MS docs aren't clear about whether the SDK
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# PlaySound() with SND_ALIAS and SND_NODEFAULT will return
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# True or False when the alias is unknown. On Tim's WinXP
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# box today, it returns True (no exception is raised). What
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# we'd really like to test is that no sound is played, but
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# that requires first wiring an eardrum class into unittest
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# <wink>.
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try:
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winsound.PlaySound(
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'!"$%&/(#+*',
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winsound.SND_ALIAS | winsound.SND_NODEFAULT
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)
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except RuntimeError:
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pass
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else:
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self.assertRaises(
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RuntimeError,
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winsound.PlaySound,
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'!"$%&/(#+*', winsound.SND_ALIAS | winsound.SND_NODEFAULT
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)
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def test_stopasync(self):
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if _have_soundcard():
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winsound.PlaySound(
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'SystemQuestion',
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winsound.SND_ALIAS | winsound.SND_ASYNC | winsound.SND_LOOP
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)
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time.sleep(0.5)
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try:
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winsound.PlaySound(
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'SystemQuestion',
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winsound.SND_ALIAS | winsound.SND_NOSTOP
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)
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except RuntimeError:
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pass
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else: # the first sound might already be finished
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pass
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winsound.PlaySound(None, winsound.SND_PURGE)
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else:
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self.assertRaises(
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RuntimeError,
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winsound.PlaySound,
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None, winsound.SND_PURGE
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)
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def _get_cscript_path():
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"""Return the full path to cscript.exe or None."""
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for dir in os.environ.get("PATH", "").split(os.pathsep):
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cscript_path = os.path.join(dir, "cscript.exe")
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if os.path.exists(cscript_path):
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return cscript_path
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__have_soundcard_cache = None
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def _have_soundcard():
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"""Return True iff this computer has a soundcard."""
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global __have_soundcard_cache
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if __have_soundcard_cache is None:
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cscript_path = _get_cscript_path()
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if cscript_path is None:
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# Could not find cscript.exe to run our VBScript helper. Default
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# to True: most computers these days *do* have a soundcard.
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return True
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check_script = os.path.join(os.path.dirname(__file__),
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"check_soundcard.vbs")
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p = subprocess.Popen([cscript_path, check_script],
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stdout=subprocess.PIPE)
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__have_soundcard_cache = not p.wait()
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return __have_soundcard_cache
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def test_main():
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support.run_unittest(BeepTest, MessageBeepTest, PlaySoundTest)
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if __name__=="__main__":
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test_main()
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