refactor: migrate from FL Studio to REAPER with rpp library
Replace FL Studio binary .flp output with REAPER text-based .rpp output using the rpp Python library (Perlence/rpp). - Add core/schema.py: DAW-agnostic data types (SongDefinition, TrackDef, ClipDef, MidiNote, PluginDef) - Add reaper_builder/: RPP file generation via rpp.Element + headless render via reaper.exe CLI - Add composer/converters.py: bridge rhythm.py/melodic.py note dicts to core.schema MidiNote objects - Rewrite scripts/compose.py: real generator pipeline with --render flag - Delete src/flp_builder/, src/scanner/, mcp/, flstudio-mcp/, old scripts - Add 40 passing tests (schema, builder, converters, compose, render)
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renato97
176
tests/test_reaper_builder.py
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176
tests/test_reaper_builder.py
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"""Tests for src/reaper_builder/ — RPPBuilder, rpp_writer."""
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import sys
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from pathlib import Path
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sys.path.insert(0, str(Path(__file__).parents[1]))
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import pytest
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import tempfile
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from src.core.schema import SongDefinition, SongMeta, TrackDef, ClipDef, MidiNote
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from src.reaper_builder import RPPBuilder
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class TestRPPBuilderWrite:
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"""Test RPPBuilder.write() produces valid .rpp output."""
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def test_write_produces_reaper_project_marker(self):
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"""RPPBuilder.write() produces a file containing 'REAPER_PROJECT'."""
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meta = SongMeta(bpm=95, key="Am", title="Test")
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song = SongDefinition(meta=meta, tracks=[])
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builder = RPPBuilder(song)
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with tempfile.NamedTemporaryFile(
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mode="w", suffix=".rpp", delete=False, encoding="utf-8"
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) as f:
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tmp_path = f.name
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try:
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builder.write(tmp_path)
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content = Path(tmp_path).read_text(encoding="utf-8")
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assert "REAPER_PROJECT" in content
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finally:
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Path(tmp_path).unlink(missing_ok=True)
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def test_write_produces_tempo_line(self):
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"""Output contains TEMPO line with correct BPM."""
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meta = SongMeta(bpm=95, key="Am")
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song = SongDefinition(meta=meta, tracks=[])
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builder = RPPBuilder(song)
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with tempfile.NamedTemporaryFile(
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mode="w", suffix=".rpp", delete=False, encoding="utf-8"
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) as f:
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tmp_path = f.name
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try:
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builder.write(tmp_path)
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content = Path(tmp_path).read_text(encoding="utf-8")
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assert "TEMPO 95 " in content
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finally:
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Path(tmp_path).unlink(missing_ok=True)
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class TestRPPBuilderAudioTrack:
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"""Test audio track generates SOURCE WAVE block with correct file path."""
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def test_audio_track_generates_source_wave_block(self):
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"""Audio clip produces <SOURCE WAVE> block with FILE path."""
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meta = SongMeta(bpm=95, key="Am")
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clip = ClipDef(
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position=0.0,
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length=16.0,
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name="Kick Loop",
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audio_path="C:/samples/kick.wav",
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)
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track = TrackDef(name="Drums", clips=[clip])
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song = SongDefinition(meta=meta, tracks=[track])
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builder = RPPBuilder(song)
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with tempfile.NamedTemporaryFile(
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mode="w", suffix=".rpp", delete=False, encoding="utf-8"
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) as f:
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tmp_path = f.name
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try:
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builder.write(tmp_path)
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content = Path(tmp_path).read_text(encoding="utf-8")
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assert "<SOURCE WAVE\n" in content
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assert 'FILE C:/samples/kick.wav' in content
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finally:
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Path(tmp_path).unlink(missing_ok=True)
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def test_audio_track_includes_track_name(self):
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"""Audio track block contains the track NAME."""
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meta = SongMeta(bpm=95, key="Am")
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clip = ClipDef(position=0.0, length=16.0, audio_path="C:/kick.wav")
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track = TrackDef(name="Kick", clips=[clip])
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song = SongDefinition(meta=meta, tracks=[track])
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builder = RPPBuilder(song)
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with tempfile.NamedTemporaryFile(
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mode="w", suffix=".rpp", delete=False, encoding="utf-8"
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) as f:
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tmp_path = f.name
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try:
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builder.write(tmp_path)
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content = Path(tmp_path).read_text(encoding="utf-8")
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assert "NAME Kick" in content
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finally:
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Path(tmp_path).unlink(missing_ok=True)
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class TestRPPBuilderMidiTrack:
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"""Test MIDI track generates MIDI event lines (E lines)."""
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def test_midi_track_generates_e_lines(self):
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"""MIDI clip produces E event lines in the output."""
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meta = SongMeta(bpm=95, key="Am")
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note = MidiNote(pitch=36, start=0.0, duration=0.25, velocity=115)
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clip = ClipDef(position=0.0, length=16.0, name="Kick Pattern", midi_notes=[note])
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track = TrackDef(name="Drums", clips=[clip])
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song = SongDefinition(meta=meta, tracks=[track])
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builder = RPPBuilder(song)
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with tempfile.NamedTemporaryFile(
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mode="w", suffix=".rpp", delete=False, encoding="utf-8"
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) as f:
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tmp_path = f.name
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try:
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builder.write(tmp_path)
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content = Path(tmp_path).read_text(encoding="utf-8")
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assert "<SOURCE MIDI\n" in content
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assert "E " in content
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finally:
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Path(tmp_path).unlink(missing_ok=True)
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def test_midi_track_note_on_off_pairs(self):
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"""MIDI note produces note-on (90) and note-off (80) E lines."""
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meta = SongMeta(bpm=95, key="Am")
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notes = [
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MidiNote(pitch=36, start=0.0, duration=0.25, velocity=115),
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MidiNote(pitch=36, start=1.5, duration=0.25, velocity=105),
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]
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clip = ClipDef(position=0.0, length=16.0, name="Kick Pattern", midi_notes=notes)
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track = TrackDef(name="Drums", clips=[clip])
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song = SongDefinition(meta=meta, tracks=[track])
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builder = RPPBuilder(song)
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with tempfile.NamedTemporaryFile(
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mode="w", suffix=".rpp", delete=False, encoding="utf-8"
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) as f:
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tmp_path = f.name
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try:
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builder.write(tmp_path)
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content = Path(tmp_path).read_text(encoding="utf-8")
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# Note on: status 90, pitch, velocity
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assert "90" in content
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# Note off: status 80, pitch, 00
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assert "80" in content
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finally:
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Path(tmp_path).unlink(missing_ok=True)
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class TestRPPBuilderMasterTrack:
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"""Test that RPPBuilder includes a master track."""
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def test_output_contains_master_track(self):
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"""Generated .rpp contains a master track."""
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meta = SongMeta(bpm=95, key="Am")
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song = SongDefinition(meta=meta, tracks=[])
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builder = RPPBuilder(song)
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with tempfile.NamedTemporaryFile(
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mode="w", suffix=".rpp", delete=False, encoding="utf-8"
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) as f:
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tmp_path = f.name
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try:
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builder.write(tmp_path)
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content = Path(tmp_path).read_text(encoding="utf-8")
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assert "NAME master" in content
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finally:
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Path(tmp_path).unlink(missing_ok=True)
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