68 lines
2 KiB
Python
68 lines
2 KiB
Python
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"""Test SoundBuffer tone generation."""
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import mcrfpy
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import sys
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# Test 1: Basic sine tone
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buf = mcrfpy.SoundBuffer.tone(440, 0.5, "sine")
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assert buf is not None
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assert abs(buf.duration - 0.5) < 0.02, f"Expected ~0.5s, got {buf.duration}"
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assert buf.sample_rate == 44100
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assert buf.channels == 1
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print("PASS: Sine tone 440Hz 0.5s")
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# Test 2: Square wave
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buf = mcrfpy.SoundBuffer.tone(220, 0.3, "square")
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assert abs(buf.duration - 0.3) < 0.02
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print("PASS: Square wave")
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# Test 3: Saw wave
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buf = mcrfpy.SoundBuffer.tone(330, 0.2, "saw")
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assert abs(buf.duration - 0.2) < 0.02
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print("PASS: Saw wave")
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# Test 4: Triangle wave
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buf = mcrfpy.SoundBuffer.tone(550, 0.4, "triangle")
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assert abs(buf.duration - 0.4) < 0.02
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print("PASS: Triangle wave")
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# Test 5: Noise
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buf = mcrfpy.SoundBuffer.tone(1000, 0.1, "noise")
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assert abs(buf.duration - 0.1) < 0.02
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print("PASS: Noise")
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# Test 6: ADSR envelope
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buf = mcrfpy.SoundBuffer.tone(440, 1.0, "sine",
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attack=0.1, decay=0.2, sustain=0.5, release=0.3)
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assert abs(buf.duration - 1.0) < 0.02
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print("PASS: ADSR envelope")
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# Test 7: Custom sample rate
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buf = mcrfpy.SoundBuffer.tone(440, 0.5, "sine", sample_rate=22050)
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assert buf.sample_rate == 22050
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assert abs(buf.duration - 0.5) < 0.02
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print("PASS: Custom sample rate")
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# Test 8: Invalid waveform raises ValueError
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try:
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mcrfpy.SoundBuffer.tone(440, 0.5, "invalid_waveform")
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assert False, "Should have raised ValueError"
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except ValueError:
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pass
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print("PASS: Invalid waveform raises ValueError")
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# Test 9: Negative duration raises ValueError
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try:
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mcrfpy.SoundBuffer.tone(440, -0.5, "sine")
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assert False, "Should have raised ValueError"
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except ValueError:
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pass
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print("PASS: Negative duration raises ValueError")
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# Test 10: Samples are non-zero (tone actually generates audio)
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buf = mcrfpy.SoundBuffer.tone(440, 0.1, "sine")
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# In headless mode, sample_count should be nonzero
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assert buf.sample_count > 0, "Expected non-zero sample count"
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print(f"PASS: Tone has {buf.sample_count} samples")
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print("\nAll soundbuffer_tone tests passed!")
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sys.exit(0)
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