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authorGuido van Rossum <guido@python.org>1996-07-22 15:23:25 (GMT)
committerGuido van Rossum <guido@python.org>1996-07-22 15:23:25 (GMT)
commit5c971677a5433aff7c1150e39bde222c24c26f39 (patch)
tree64d0b425bebe8c8a74d6ce51bc4a61817ef388f9 /Lib/dos_8x3/test_aud.py
parentad8b3baa919f5ab1201fca0e608905851f24e967 (diff)
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+# Test audioop.
+import audioop
+
+def gendata1():
+ return '\0\1\2'
+
+def gendata2():
+ if audioop.getsample('\0\1', 2, 0) == 1:
+ return '\0\0\0\1\0\2'
+ else:
+ return '\0\0\1\0\2\0'
+
+def gendata4():
+ if audioop.getsample('\0\0\0\1', 4, 0) == 1:
+ return '\0\0\0\0\0\0\0\1\0\0\0\2'
+ else:
+ return '\0\0\0\0\1\0\0\0\2\0\0\0'
+
+def testmax(data):
+ if audioop.max(data[0], 1) <> 2 or \
+ audioop.max(data[1], 2) <> 2 or \
+ audioop.max(data[2], 4) <> 2:
+ return 0
+ return 1
+
+def testmaxpp(data):
+ if audioop.maxpp(data[0], 1) <> 0 or \
+ audioop.maxpp(data[1], 2) <> 0 or \
+ audioop.maxpp(data[2], 4) <> 0:
+ return 0
+ return 1
+
+def testavg(data):
+ if audioop.avg(data[0], 1) <> 1 or \
+ audioop.avg(data[1], 2) <> 1 or \
+ audioop.avg(data[2], 4) <> 1:
+ return 0
+ return 1
+
+def testavgpp(data):
+ if audioop.avgpp(data[0], 1) <> 0 or \
+ audioop.avgpp(data[1], 2) <> 0 or \
+ audioop.avgpp(data[2], 4) <> 0:
+ return 0
+ return 1
+
+def testrms(data):
+ if audioop.rms(data[0], 1) <> 1 or \
+ audioop.rms(data[1], 2) <> 1 or \
+ audioop.rms(data[2], 4) <> 1:
+ return 0
+ return 1
+
+def testcross(data):
+ if audioop.cross(data[0], 1) <> 0 or \
+ audioop.cross(data[1], 2) <> 0 or \
+ audioop.cross(data[2], 4) <> 0:
+ return 0
+ return 1
+
+def testadd(data):
+ data2 = []
+ for d in data:
+ str = ''
+ for s in d:
+ str = str + chr(ord(s)*2)
+ data2.append(str)
+ if audioop.add(data[0], data[0], 1) <> data2[0] or \
+ audioop.add(data[1], data[1], 2) <> data2[1] or \
+ audioop.add(data[2], data[2], 4) <> data2[2]:
+ return 0
+ return 1
+
+def testbias(data):
+ # Note: this test assumes that avg() works
+ d1 = audioop.bias(data[0], 1, 100)
+ d2 = audioop.bias(data[1], 2, 100)
+ d4 = audioop.bias(data[2], 4, 100)
+ if audioop.avg(d1, 1) <> 101 or \
+ audioop.avg(d2, 2) <> 101 or \
+ audioop.avg(d4, 4) <> 101:
+ return 0
+ return 1
+
+def testlin2lin(data):
+ # too simple: we test only the size
+ for d1 in data:
+ for d2 in data:
+ got = len(d1)/3
+ wtd = len(d2)/3
+ if len(audioop.lin2lin(d1, got, wtd)) <> len(d2):
+ return 0
+ return 1
+
+def testadpcm2lin(data):
+ # Very cursory test
+ if audioop.adpcm2lin('\0\0', 1, None) <> ('\0\0\0\0', (0,0)):
+ return 0
+ return 1
+
+def testlin2adpcm(data):
+ # Very cursory test
+ if audioop.lin2adpcm('\0\0\0\0', 1, None) <> ('\0\0', (0,0)):
+ return 0
+ return 1
+
+def testlin2ulaw(data):
+ if audioop.lin2ulaw(data[0], 1) <> '\377\347\333' or \
+ audioop.lin2ulaw(data[1], 2) <> '\377\377\377' or \
+ audioop.lin2ulaw(data[2], 4) <> '\377\377\377':
+ return 0
+ return 1
+
+def testulaw2lin(data):
+ # Cursory
+ d = audioop.lin2ulaw(data[0], 1)
+ if audioop.ulaw2lin(d, 1) <> data[0]:
+ return 0
+ return 1
+
+def testmul(data):
+ data2 = []
+ for d in data:
+ str = ''
+ for s in d:
+ str = str + chr(ord(s)*2)
+ data2.append(str)
+ if audioop.mul(data[0], 1, 2) <> data2[0] or \
+ audioop.mul(data[1],2, 2) <> data2[1] or \
+ audioop.mul(data[2], 4, 2) <> data2[2]:
+ return 0
+ return 1
+
+def testreverse(data):
+ if audioop.reverse(data[0], 1) <> '\2\1\0':
+ return 0
+ return 1
+
+def testtomono(data):
+ data2 = ''
+ for d in data[0]:
+ data2 = data2 + d + d
+ if audioop.tomono(data2, 1, 0.5, 0.5) <> data[0]:
+ return 0
+ return 1
+
+def testtostereo(data):
+ data2 = ''
+ for d in data[0]:
+ data2 = data2 + d + d
+ if audioop.tostereo(data[0], 1, 1, 1) <> data2:
+ return 0
+ return 1
+
+def testfindfactor(data):
+ if audioop.findfactor(data[1], data[1]) <> 1.0:
+ return 0
+ return 1
+
+def testfindfit(data):
+ if audioop.findfit(data[1], data[1]) <> (0, 1.0):
+ return 0
+ return 1
+
+def testfindmax(data):
+ if audioop.findmax(data[1], 1) <> 2:
+ return 0
+ return 1
+
+def testgetsample(data):
+ for i in range(3):
+ if audioop.getsample(data[0], 1, i) <> i or \
+ audioop.getsample(data[1], 2, i) <> i or \
+ audioop.getsample(data[2], 4, i) <> i:
+ return 0
+ return 1
+
+def testone(name, data):
+ try:
+ func = eval('test'+name)
+ except NameError:
+ print 'No test found for audioop.'+name+'()'
+ return
+ try:
+ rv = func(data)
+ except 'xx':
+ print 'Test FAILED for audioop.'+name+'() (with an exception)'
+ return
+ if not rv:
+ print 'Test FAILED for audioop.'+name+'()'
+
+def testall():
+ data = [gendata1(), gendata2(), gendata4()]
+ names = dir(audioop)
+ # We know there is a routine 'add'
+ routines = []
+ for n in names:
+ if type(eval('audioop.'+n)) == type(audioop.add):
+ routines.append(n)
+ for n in routines:
+ testone(n, data)
+testall()