Tests: AudioFile test all WAV files

#33 #34

Author: swharden

dev/python/readwav.py

@@ -9,8 +9,7 @@
 PATH_DATA = PATH_HERE.joinpath("../../data")
 
 if __name__ == "__main__":
- wavFilePath = PATH_DATA.joinpath("cant-do-that-44100.wav")
- samplerate, data = wavfile.read(wavFilePath)
- print(f"sample rate: {samplerate}")
- print(f"values: {len(data)}")
- print(f"value 12345: {data[12345]}")
+ for wavFilePath in PATH_DATA.glob("*.wav"):
+ wavFilePath = PATH_DATA.joinpath(wavFilePath)
+ samplerate, data = wavfile.read(wavFilePath)
+ print(f"{wavFilePath.name}, {samplerate}, {len(data)}")

src/Spectrogram.Tests/AudioFileTests.cs

@@ -10,14 +10,18 @@ class AudioFileTests
  /// <summary>
  /// Compare values read from the WAV reader against those read by Python's SciPy module (see script in /dev folder)
  /// </summary>
- [Test]
- public void Test_AudioFile_KnownValues()
+ [TestCase("cant-do-that-44100.wav", 44_100, 166_671, 1)]
+ [TestCase("03-02-03-01-02-01-19.wav", 48_000, 214_615, 1)]
+ [TestCase("qrss-10min.wav", 6_000, 3_600_000, 1)]
+ [TestCase("cant-do-that-11025-stereo.wav", 11_025, 41668, 2)]
+ [TestCase("asehgal-original.wav", 40_000, 1_600_000, 1)]
+ public void Test_AudioFile_LengthAndSampleRate(string filename, int knownRate, int knownLength, int channels)
  {
- (double[] audio, int sampleRate) = AudioFile.ReadWAV("../../../../../data/cant-do-that-44100.wav", multiplier: 32_000);
+ string filePath = $"../../../../../data/{filename}";
+ (double[] audio, int sampleRate) = AudioFile.ReadWAV(filePath);
 
- Assert.AreEqual(44100, sampleRate);
- Assert.AreEqual(166671, audio.Length);
- Assert.AreEqual(4435, audio[12345], 1000);
+ Assert.AreEqual(knownRate, sampleRate);
+ Assert.AreEqual(knownLength, audio.Length / channels);
  }
  }
 }