diff options
Diffstat (limited to 'Lib/test/test_winsound.py')
| -rw-r--r-- | Lib/test/test_winsound.py | 149 |
1 files changed, 115 insertions, 34 deletions
diff --git a/Lib/test/test_winsound.py b/Lib/test/test_winsound.py index 77c432a..19d4459 100644 --- a/Lib/test/test_winsound.py +++ b/Lib/test/test_winsound.py @@ -3,6 +3,9 @@ import unittest from test import test_support import winsound, time +import os +import subprocess + class BeepTest(unittest.TestCase): @@ -44,6 +47,7 @@ class MessageBeepTest(unittest.TestCase): def test_question(self): winsound.MessageBeep(winsound.MB_ICONQUESTION) + class PlaySoundTest(unittest.TestCase): def test_errors(self): @@ -56,19 +60,54 @@ class PlaySoundTest(unittest.TestCase): ) def test_alias_asterisk(self): - winsound.PlaySound('SystemAsterisk', winsound.SND_ALIAS) + if _have_soundcard(): + winsound.PlaySound('SystemAsterisk', winsound.SND_ALIAS) + else: + self.assertRaises( + RuntimeError, + winsound.PlaySound, + 'SystemAsterisk', winsound.SND_ALIAS + ) def test_alias_exclamation(self): - winsound.PlaySound('SystemExclamation', winsound.SND_ALIAS) + if _have_soundcard(): + winsound.PlaySound('SystemExclamation', winsound.SND_ALIAS) + else: + self.assertRaises( + RuntimeError, + winsound.PlaySound, + 'SystemExclamation', winsound.SND_ALIAS + ) def test_alias_exit(self): - winsound.PlaySound('SystemExit', winsound.SND_ALIAS) + if _have_soundcard(): + winsound.PlaySound('SystemExit', winsound.SND_ALIAS) + else: + self.assertRaises( + RuntimeError, + winsound.PlaySound, + 'SystemExit', winsound.SND_ALIAS + ) def test_alias_hand(self): - winsound.PlaySound('SystemHand', winsound.SND_ALIAS) + if _have_soundcard(): + winsound.PlaySound('SystemHand', winsound.SND_ALIAS) + else: + self.assertRaises( + RuntimeError, + winsound.PlaySound, + 'SystemHand', winsound.SND_ALIAS + ) def test_alias_question(self): - winsound.PlaySound('SystemQuestion', winsound.SND_ALIAS) + if _have_soundcard(): + winsound.PlaySound('SystemQuestion', winsound.SND_ALIAS) + else: + self.assertRaises( + RuntimeError, + winsound.PlaySound, + 'SystemQuestion', winsound.SND_ALIAS + ) def test_alias_fallback(self): # This test can't be expected to work on all systems. The MS @@ -85,41 +124,83 @@ class PlaySoundTest(unittest.TestCase): return def test_alias_nofallback(self): - # Note that this is not the same as asserting RuntimeError - # will get raised: you cannot convert this to - # self.assertRaises(...) form. The attempt may or may not - # raise RuntimeError, but it shouldn't raise anything other - # than RuntimeError, and that's all we're trying to test here. - # The MS docs aren't clear about whether the SDK PlaySound() - # with SND_ALIAS and SND_NODEFAULT will return True or False when - # the alias is unknown. On Tim's WinXP box today, it returns - # True (no exception is raised). What we'd really like to test - # is that no sound is played, but that requires first wiring an - # eardrum class into unittest <wink>. - try: - winsound.PlaySound( - '!"$%&/(#+*', - winsound.SND_ALIAS | winsound.SND_NODEFAULT + if _have_soundcard(): + # Note that this is not the same as asserting RuntimeError + # will get raised: you cannot convert this to + # self.assertRaises(...) form. The attempt may or may not + # raise RuntimeError, but it shouldn't raise anything other + # than RuntimeError, and that's all we're trying to test + # here. The MS docs aren't clear about whether the SDK + # PlaySound() with SND_ALIAS and SND_NODEFAULT will return + # True or False when the alias is unknown. On Tim's WinXP + # box today, it returns True (no exception is raised). What + # we'd really like to test is that no sound is played, but + # that requires first wiring an eardrum class into unittest + # <wink>. + try: + winsound.PlaySound( + '!"$%&/(#+*', + winsound.SND_ALIAS | winsound.SND_NODEFAULT + ) + except RuntimeError: + pass + else: + self.assertRaises( + RuntimeError, + winsound.PlaySound, + '!"$%&/(#+*', winsound.SND_ALIAS | winsound.SND_NODEFAULT ) - except RuntimeError: - pass def test_stopasync(self): - winsound.PlaySound( - 'SystemQuestion', - winsound.SND_ALIAS | winsound.SND_ASYNC | winsound.SND_LOOP - ) - time.sleep(0.5) - try: + if _have_soundcard(): winsound.PlaySound( 'SystemQuestion', - winsound.SND_ALIAS | winsound.SND_NOSTOP + winsound.SND_ALIAS | winsound.SND_ASYNC | winsound.SND_LOOP + ) + time.sleep(0.5) + try: + winsound.PlaySound( + 'SystemQuestion', + winsound.SND_ALIAS | winsound.SND_NOSTOP + ) + except RuntimeError: + pass + else: # the first sound might already be finished + pass + winsound.PlaySound(None, winsound.SND_PURGE) + else: + self.assertRaises( + RuntimeError, + winsound.PlaySound, + None, winsound.SND_PURGE ) - except RuntimeError: - pass - else: # the first sound might already be finished - pass - winsound.PlaySound(None, winsound.SND_PURGE) + + +def _get_cscript_path(): + """Return the full path to cscript.exe or None.""" + for dir in os.environ.get("PATH", "").split(os.pathsep): + cscript_path = os.path.join(dir, "cscript.exe") + if os.path.exists(cscript_path): + return cscript_path + +__have_soundcard_cache = None +def _have_soundcard(): + """Return True iff this computer has a soundcard.""" + global __have_soundcard_cache + if __have_soundcard_cache is None: + cscript_path = _get_cscript_path() + if cscript_path is None: + # Could not find cscript.exe to run our VBScript helper. Default + # to True: most computers these days *do* have a soundcard. + return True + + check_script = os.path.join(os.path.dirname(__file__), + "check_soundcard.vbs") + p = subprocess.Popen([cscript_path, check_script], + stdout=subprocess.PIPE) + __have_soundcard_cache = not p.wait() + return __have_soundcard_cache + def test_main(): test_support.run_unittest(BeepTest, MessageBeepTest, PlaySoundTest) |