John McCardle
97dbec9106
New SoundBuffer Python type enables procedural audio generation: - Tone synthesis (sine, square, saw, triangle, noise) with ADSR envelopes - sfxr retro sound effect engine (7 presets, 24 params, mutation, seeding) - DSP effects chain: pitch_shift, low/high pass, echo, reverb, distortion, bit_crush, normalize, reverse, slice - Composition: concat (with crossfade overlap) and mix - Sound() now accepts SoundBuffer or filename string - Sound gains pitch property and play_varied() method - Platform stubs for HeadlessTypes and SDL2Types (loadFromSamples, pitch) - Interactive demo: sfxr clone UI + Animalese speech synthesizer - 62 unit tests across 6 test files (all passing) Refs #251 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
85 lines
2.9 KiB
Python
85 lines
2.9 KiB
Python
"""Test Sound integration with SoundBuffer."""
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import mcrfpy
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import sys
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# Test 1: Sound accepts SoundBuffer
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buf = mcrfpy.SoundBuffer.tone(440, 0.5, "sine")
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sound = mcrfpy.Sound(buf)
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assert sound is not None
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print("PASS: Sound(SoundBuffer) works")
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# Test 2: Sound.buffer returns the SoundBuffer
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got_buf = sound.buffer
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assert got_buf is not None
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assert abs(got_buf.duration - buf.duration) < 0.02
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print("PASS: sound.buffer returns SoundBuffer")
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# Test 3: Sound.pitch property
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assert sound.pitch == 1.0, f"Default pitch should be 1.0, got {sound.pitch}"
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sound.pitch = 1.5
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assert abs(sound.pitch - 1.5) < 0.001
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sound.pitch = 1.0
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print("PASS: sound.pitch get/set")
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# Test 4: Sound.play_varied (in headless mode, just verifies no crash)
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sound.play_varied(pitch_range=0.1, volume_range=3.0)
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print("PASS: sound.play_varied() works")
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# Test 5: Sound from SoundBuffer has duration
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assert sound.duration > 0
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print(f"PASS: Sound from SoundBuffer has duration {sound.duration:.3f}s")
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# Test 6: Sound from SoundBuffer has source '<SoundBuffer>'
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assert sound.source == "<SoundBuffer>"
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print("PASS: Sound.source is '<SoundBuffer>' for buffer-created sounds")
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# Test 7: Backward compatibility - Sound still accepts string
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# File may not exist, so we test that a string is accepted (not TypeError)
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# and that RuntimeError is raised for missing files
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sound2 = None
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try:
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sound2 = mcrfpy.Sound("test.ogg")
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print("PASS: Sound(str) backward compatible (file loaded)")
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except RuntimeError:
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# File doesn't exist - that's fine, the important thing is it accepted a string
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print("PASS: Sound(str) backward compatible (raises RuntimeError for missing file)")
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# Test 8: Sound from SoundBuffer - standard playback controls
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sound.volume = 75.0
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assert abs(sound.volume - 75.0) < 0.1
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sound.loop = True
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assert sound.loop == True
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sound.loop = False
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print("PASS: Standard playback controls work with SoundBuffer")
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# Test 9: sfxr buffer -> Sound pipeline
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sfx = mcrfpy.SoundBuffer.sfxr("coin", seed=42)
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coin_sound = mcrfpy.Sound(sfx)
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assert coin_sound is not None
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assert coin_sound.duration > 0
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print(f"PASS: sfxr -> Sound pipeline ({coin_sound.duration:.3f}s)")
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# Test 10: Effect chain -> Sound pipeline
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processed = mcrfpy.SoundBuffer.tone(440, 0.3, "saw").low_pass(2000).normalize()
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proc_sound = mcrfpy.Sound(processed)
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assert proc_sound is not None
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assert proc_sound.duration > 0
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print(f"PASS: Effects -> Sound pipeline ({proc_sound.duration:.3f}s)")
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# Test 11: Sound with invalid argument type
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try:
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mcrfpy.Sound(42)
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assert False, "Should have raised TypeError"
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except TypeError:
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pass
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print("PASS: Sound(int) raises TypeError")
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# Test 12: Sound.buffer is None for file-loaded sounds
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if sound2 is not None:
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assert sound2.buffer is None
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print("PASS: Sound.buffer is None for file-loaded sounds")
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else:
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print("PASS: Sound.buffer test skipped (file not available)")
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print("\nAll soundbuffer_sound tests passed!")
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sys.exit(0)
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