Issue #18919: Unified and extended tests for audio modules: aifc, sunau and

wave.

1 files changed, 89 insertions, 56 deletions

diff --git a/Lib/test/test_sunau.py b/Lib/test/test_sunau.py
index 339ab57..767314f 100644
--- a/Lib/test/test_sunau.py
+++ b/Lib/test/test_sunau.py
@@ -1,70 +1,103 @@
-from test.support import run_unittest, TESTFN
+from test.support import TESTFN
 import unittest
-import os
-
+from test import audiotests
+import sys
 import sunau
 
-nchannels = 2
-sampwidth = 2
-framerate = 8000
-nframes = 100
-
-class SunAUTest(unittest.TestCase):
 
-    def setUp(self):
-        self.f = None
+class SunauPCM8Test(audiotests.AudioWriteTests,
+        audiotests.AudioTestsWithSourceFile,
+        unittest.TestCase):
+    module = sunau
+    sndfilename = 'pluck-pcm8.au'
+    sndfilenframes = 3307
+    nchannels = 2
+    sampwidth = 1
+    framerate = 11025
+    nframes = 48
+    comptype = 'NONE'
+    compname = 'not compressed'
+    frames = bytes.fromhex("""\
+      02FF 4B00 3104 8008 CB06 4803 BF01 03FE B8FA B4F3 29EB 1AE6 \
+      EDE4 C6E2 0EE0 EFE0 57E2 FBE8 13EF D8F7 97FB F5FC 08FB DFFB \
+      11FA 3EFB BCFC 66FF CF04 4309 C10E 5112 EE17 8216 7F14 8012 \
+      490E 520D EF0F CE0F E40C 630A 080A 2B0B 510E 8B11 B60E 440A \
+      """)
 
-    def tearDown(self):
-        if self.f is not None:
-            self.f.close()
-        try:
-            os.remove(TESTFN)
-        except OSError:
-            pass
 
-    def test_lin(self):
-        self.f = sunau.open(TESTFN, 'w')
-        self.f.setnchannels(nchannels)
-        self.f.setsampwidth(sampwidth)
-        self.f.setframerate(framerate)
-        self.f.setcomptype('NONE', 'not compressed')
-        output = b'\xff\x00\x12\xcc' * (nframes * nchannels * sampwidth // 4)
-        self.f.writeframes(output)
-        self.f.close()
+class SunauPCM16Test(audiotests.AudioWriteTests,
+        audiotests.AudioTestsWithSourceFile,
+        unittest.TestCase):
+    module = sunau
+    sndfilename = 'pluck-pcm16.au'
+    sndfilenframes = 3307
+    nchannels = 2
+    sampwidth = 2
+    framerate = 11025
+    nframes = 48
+    comptype = 'NONE'
+    compname = 'not compressed'
+    frames = bytes.fromhex("""\
+      022EFFEA 4B5C00F9 311404EF 80DB0844 CBE006B0 48AB03F3 BFE601B5 0367FE80 \
+      B853FA42 B4AFF351 2997EBCD 1A5AE6DC EDF9E492 C627E277 0E06E0B7 EF29E029 \
+      5759E271 FB34E83F 1377EF85 D82CF727 978EFB79 F5F7FC12 0864FB9E DF30FB40 \
+      1183FA30 3EEAFB59 BC78FCB4 66D5FF60 CF130415 431A097D C1BA0EC7 512312A0 \
+      EEE11754 82071666 7FFE1448 80001298 49990EB7 52B40DC1 EFAD0F65 CE3A0FBE \
+      E4B70CE6 63490A57 08CC0A1D 2BBC0B09 51480E46 8BCB113C B6F60EE9 44150A5A \
+      """)
 
-        self.f = sunau.open(TESTFN, 'rb')
-        self.assertEqual(nchannels, self.f.getnchannels())
-        self.assertEqual(sampwidth, self.f.getsampwidth())
-        self.assertEqual(framerate, self.f.getframerate())
-        self.assertEqual(nframes, self.f.getnframes())
-        self.assertEqual('NONE', self.f.getcomptype())
-        self.assertEqual(self.f.readframes(nframes), output)
-        self.f.close()
 
-    def test_ulaw(self):
-        self.f = sunau.open(TESTFN, 'w')
-        self.f.setnchannels(nchannels)
-        self.f.setsampwidth(sampwidth)
-        self.f.setframerate(framerate)
-        self.f.setcomptype('ULAW', '')
-        # u-law compression is lossy, therefore we can't expect non-zero data
-        # to come back unchanged.
-        output = b'\0' * nframes * nchannels * sampwidth
-        self.f.writeframes(output)
-        self.f.close()
+class SunauPCM32Test(audiotests.AudioWriteTests,
+        audiotests.AudioTestsWithSourceFile,
+        unittest.TestCase):
+    module = sunau
+    sndfilename = 'pluck-pcm32.au'
+    sndfilenframes = 3307
+    nchannels = 2
+    sampwidth = 4
+    framerate = 11025
+    nframes = 48
+    comptype = 'NONE'
+    compname = 'not compressed'
+    frames = bytes.fromhex("""\
+      022D65BCFFEB9D92 4B5A0F8000FA549C 3113C34004EE2BC0 80DCD680084303E0 \
+      CBDEC0C006B26140 48A9980003F2F8FC BFE8248001B07D92 036BFB60FE7B5D34 \
+      B8575600FA3EC920 B4B05500F3502BC0 29983000EBCB6240 1A5CA7A0E6D99A60 \
+      EDFA3E80E491BD40 C625EB80E27884A0 0E05A9A0E0B6CFE0 EF292940E0292280 \
+      5758D800E2706700 FB3557D8E83E1640 1377BF00EF840280 D82C5B80F7272A80 \
+      978F1600FB774560 F5F86510FC101364 086635A0FB9C4E20 DF30FC40FB40EE28 \
+      117FE0A0FA3438B0 3EE6B840FB5AC3F0 BC77A380FCB2F454 66D6DA80FF5F32B4 \
+      CF13B980041275B0 431D6980097A8C00 C1BB60000EC74E00 5120B98012A2BAA0 \
+      EEDF64C01754C060 820700001664B780 7FFFFFFF14453F40 800000001294E6E0 \
+      499C1B000EB3B270 52B73E000DBCA020 EFB2B2E00F5FD880 CE3CDB400FBE1270 \
+      E4B49CC00CEA2D90 6344A8800A5A7CA0 08C8FE800A1FFEE0 2BB986C00B0A0E00 \
+      51486F800E44E190 8BCC6480113B0580 B6F4EC000EEB3630 441317800A5B48A0 \
+      """)
 
-        self.f = sunau.open(TESTFN, 'rb')
-        self.assertEqual(nchannels, self.f.getnchannels())
-        self.assertEqual(sampwidth, self.f.getsampwidth())
-        self.assertEqual(framerate, self.f.getframerate())
-        self.assertEqual(nframes, self.f.getnframes())
-        self.assertEqual('ULAW', self.f.getcomptype())
-        self.assertEqual(self.f.readframes(nframes), output)
-        self.f.close()
 
+class SunauULAWTest(audiotests.AudioWriteTests,
+        audiotests.AudioTestsWithSourceFile,
+        unittest.TestCase):
+    module = sunau
+    sndfilename = 'pluck-ulaw.au'
+    sndfilenframes = 3307
+    nchannels = 2
+    sampwidth = 2
+    framerate = 11025
+    nframes = 48
+    comptype = 'ULAW'
+    compname = 'CCITT G.711 u-law'
+    frames = bytes.fromhex("""\
+      022CFFE8 497C00F4 307C04DC 8284083C CB84069C 497C03DC BE8401AC 036CFE74 \
+      B684FA24 B684F344 2A7CEC04 19FCE704 EE04E504 C584E204 0E3CE104 EF04DF84 \
+      557CE204 FB24E804 12FCEF04 D784F744 9684FB64 F5C4FC24 083CFBA4 DF84FB24 \
+      11FCFA24 3E7CFB64 BA84FCB4 657CFF5C CF84041C 417C09BC C1840EBC 517C12FC \
+      EF0416FC 828415FC 7D7C13FC 828412FC 497C0EBC 517C0DBC F0040F3C CD840FFC \
+      E5040CBC 617C0A3C 08BC0A3C 2C7C0B3C 517C0E3C 8A8410FC B6840EBC 457C0A3C \
+      """)
+    if sys.byteorder != 'big':
+        frames = audiotests.byteswap2(frames)
 
-def test_main():
-    run_unittest(SunAUTest)
 
 if __name__ == "__main__":
     unittest.main()