REAPER MCP Server

import pytest import pytest_asyncio from .test_utils import ( ensure_clean_project, create_track_with_verification, create_midi_item_with_verification, assert_response_contains, assert_response_success, extract_number_from_response ) @pytest.mark.asyncio async def test_create_midi_item(reaper_mcp_client): """Test creating a MIDI item""" # Ensure clean project state await ensure_clean_project(reaper_mcp_client) # Create a track and get its actual index track_index = await create_track_with_verification(reaper_mcp_client) # Create MIDI item result = await reaper_mcp_client.call_tool( "create_midi_item", {"track_index": track_index, "position": 0.0, "length": 4.0} ) print(f"Create MIDI item result: {result}") assert_response_contains(result, "created midi item") # Verify item was created result = await reaper_mcp_client.call_tool( "count_media_items", {} ) assert "1" in result.content[0].text @pytest.mark.asyncio async def test_midi_note_operations(reaper_mcp_client): """Test inserting MIDI notes""" # Ensure clean project state await ensure_clean_project(reaper_mcp_client) # Create track and MIDI item track_index = await create_track_with_verification(reaper_mcp_client) item_index, take_index = await create_midi_item_with_verification( reaper_mcp_client, track_index, position=0.0, length=8.0 ) # Debug: Check if the item has takes result = await reaper_mcp_client.call_tool( "count_takes", {"item_index": item_index} ) print(f"Count takes result: {result.content[0].text}") # Insert a C4 note result = await reaper_mcp_client.call_tool( "insert_midi_note", { "item_index": item_index, "take_index": take_index, "pitch": 60, # C4 "velocity": 100, "start_time": 0.0, "duration": 1.0, "channel": 0 } ) print(f"Insert MIDI note result: {result}") assert_response_contains(result, "inserted midi note") assert_response_contains(result, "pitch=60") # Insert another note (E4) result = await reaper_mcp_client.call_tool( "insert_midi_note", { "item_index": item_index, "take_index": take_index, "pitch": 64, # E4 "velocity": 80, "start_time": 1.0, "duration": 1.0, "channel": 0 } ) assert_response_contains(result, "inserted midi note") # Sort MIDI events result = await reaper_mcp_client.call_tool( "midi_sort", {"item_index": item_index, "take_index": take_index} ) print(f"MIDI sort result: {result}") assert_response_contains(result, "sorted successfully") @pytest.mark.asyncio async def test_midi_cc_operations(reaper_mcp_client): """Test inserting MIDI CC events""" # Ensure clean project state await ensure_clean_project(reaper_mcp_client) # Create track and MIDI item track_index = await create_track_with_verification(reaper_mcp_client) item_index, take_index = await create_midi_item_with_verification( reaper_mcp_client, track_index, position=0.0, length=4.0 ) # Insert volume CC (CC7) result = await reaper_mcp_client.call_tool( "insert_midi_cc", { "item_index": item_index, "take_index": take_index, "time": 0.0, "channel": 0, "cc_number": 7, # Volume "value": 100 } ) print(f"Insert MIDI CC result: {result}") assert_response_contains(result, "inserted midi cc") assert_response_contains(result, "cc7") # Insert pan CC (CC10) result = await reaper_mcp_client.call_tool( "insert_midi_cc", { "item_index": item_index, "take_index": take_index, "time": 2.0, "channel": 0, "cc_number": 10, # Pan "value": 64 # Center } ) assert_response_contains(result, "inserted midi cc") @pytest.mark.asyncio async def test_take_operations(reaper_mcp_client): """Test take management operations""" # Ensure clean project state await ensure_clean_project(reaper_mcp_client) # Create track and MIDI item track_index = await create_track_with_verification(reaper_mcp_client) item_index, take_index = await create_midi_item_with_verification( reaper_mcp_client, track_index, position=0.0, length=4.0 ) # Count takes (should be 1) result = await reaper_mcp_client.call_tool( "count_takes", {"item_index": item_index} ) print(f"Count takes result: {result}") assert "1 takes" in result.content[0].text or "1 take" in result.content[0].text # Get active take (should be take_index) result = await reaper_mcp_client.call_tool( "get_active_take", {"item_index": item_index} ) print(f"Get active take result: {result}") assert_response_contains(result, "active take") # Note: To test multiple takes, we would need to implement add_take_to_item # For now, we can only test with the single take created with the MIDI item @pytest.mark.asyncio async def test_midi_workflow(reaper_mcp_client): """Test a complete MIDI workflow""" # Ensure clean project state await ensure_clean_project(reaper_mcp_client) # Create track track_index = await create_track_with_verification(reaper_mcp_client) # Set track name await reaper_mcp_client.call_tool( "set_track_name", {"track_index": track_index, "name": "MIDI Piano"} ) # Create MIDI item item_index, take_index = await create_midi_item_with_verification( reaper_mcp_client, track_index, position=0.0, length=4.0 ) # Insert a C major chord (C-E-G) notes = [ {"pitch": 60, "name": "C"}, # C4 {"pitch": 64, "name": "E"}, # E4 {"pitch": 67, "name": "G"} # G4 ] for note in notes: result = await reaper_mcp_client.call_tool( "insert_midi_note", { "item_index": item_index, "take_index": take_index, "pitch": note["pitch"], "velocity": 90, "start_time": 0.0, "duration": 2.0, "channel": 0 } ) print(f"Inserted {note['name']} note: {result}") assert_response_contains(result, "inserted midi note") # Add expression CC result = await reaper_mcp_client.call_tool( "insert_midi_cc", { "item_index": item_index, "take_index": take_index, "time": 0.0, "channel": 0, "cc_number": 11, # Expression "value": 127 } ) assert_response_contains(result, "inserted midi cc") # Sort MIDI events result = await reaper_mcp_client.call_tool( "midi_sort", {"item_index": item_index, "take_index": take_index} ) assert_response_contains(result, "sorted successfully") print("MIDI workflow completed successfully!") @pytest.mark.asyncio async def test_midi_error_handling(reaper_mcp_client): """Test error handling for MIDI operations""" # Ensure clean project state await ensure_clean_project(reaper_mcp_client) # Try to create MIDI item on non-existent track result = await reaper_mcp_client.call_tool( "create_midi_item", {"track_index": 999, "position": 0.0, "length": 4.0} ) assert "failed" in result.content[0].text.lower() # Try to insert note in non-existent item result = await reaper_mcp_client.call_tool( "insert_midi_note", { "item_index": 999, "take_index": 0, "pitch": 60, "velocity": 100, "start_time": 0.0, "duration": 1.0 } ) assert "failed" in result.content[0].text.lower() # Try to insert invalid MIDI pitch track_index = await create_track_with_verification(reaper_mcp_client) item_index, take_index = await create_midi_item_with_verification( reaper_mcp_client, track_index, position=0.0, length=4.0 ) # This should fail at the schema validation level try: result = await reaper_mcp_client.call_tool( "insert_midi_note", { "item_index": item_index, "take_index": take_index, "pitch": 200, # Invalid pitch > 127 "velocity": 100, "start_time": 0.0, "duration": 1.0 } ) # If we get here, check for error message assert "error" in result.content[0].text.lower() or "invalid" in result.content[0].text.lower() except Exception as e: # Schema validation might raise an exception print(f"Expected validation error: {e}")