REAPER MCP Server

""" Minimal DSL integration tests that work with the existing bridge These tests verify the DSL layer structure is correct, even if the Lua bridge functions aren't installed yet. """ import pytest import logging logger = logging.getLogger(__name__) async def call_dsl_tool(client, tool_name, params): """Helper to call DSL tools and return the text response""" result = await client.call_tool(tool_name, params) return result.content[0].text if result.content else "" @pytest.mark.asyncio class TestDSLStructure: """Test DSL tools are properly registered and callable""" async def test_dsl_tools_exist(self, reaper_mcp_client): """Test that DSL tools are registered when using DSL profile""" # Get list of available tools tools = await reaper_mcp_client.list_tools() tool_names = {t.name for t in tools.tools} # Check that DSL tools exist expected_dsl_tools = [ "dsl_track_create", "dsl_track_volume", "dsl_track_pan", "dsl_track_mute", "dsl_track_solo", "dsl_time_select", "dsl_loop_create", "dsl_midi_insert", "dsl_quantize", "dsl_play", "dsl_stop", "dsl_set_tempo", "dsl_list_tracks", "dsl_get_tempo_info", "dsl_reset_context" ] for tool in expected_dsl_tools: assert tool in tool_names, f"Missing DSL tool: {tool}" async def test_dsl_reset_context(self, reaper_mcp_client): """Test the context reset tool (doesn't require bridge functions)""" result = await call_dsl_tool(reaper_mcp_client, "dsl_reset_context", {}) assert "Session context reset" in result async def test_dsl_play(self, reaper_mcp_client): """Test play command (uses DSL bridge function)""" result = await call_dsl_tool(reaper_mcp_client, "dsl_play", {}) # Should either succeed, timeout, or need bridge installation assert any(msg in result for msg in [ "Started playback", "Timeout", "not available in bridge", "DSL Lua functions need to be installed" ]) async def test_dsl_stop(self, reaper_mcp_client): """Test stop command (uses DSL bridge function)""" result = await call_dsl_tool(reaper_mcp_client, "dsl_stop", {}) # Should either succeed, timeout, or need bridge installation assert any(msg in result for msg in [ "Stopped playback", "Timeout", "not available in bridge", "DSL Lua functions need to be installed" ]) async def test_dsl_tool_descriptions(self, reaper_mcp_client): """Test that DSL tools have proper descriptions""" tools = await reaper_mcp_client.list_tools() dsl_tools = {t.name: t for t in tools.tools if t.name.startswith("dsl_")} # Check a few key tools have good descriptions volume_desc = dsl_tools["dsl_track_volume"].description.lower() assert "flexible" in volume_desc assert "track" in volume_desc and "volume" in volume_desc loop_desc = dsl_tools["dsl_loop_create"].description.lower() assert "loop" in loop_desc midi_desc = dsl_tools["dsl_midi_insert"].description.lower() assert "midi" in midi_desc assert "external" in midi_desc or "insert" in midi_desc @pytest.mark.asyncio class TestDSLErrorHandling: """Test DSL error handling without requiring bridge functions""" async def test_missing_required_params(self, reaper_mcp_client): """Test handling of missing required parameters""" # Check that the tool has required parameters in its schema tools = await reaper_mcp_client.list_tools() volume_tool = next(t for t in tools.tools if t.name == "dsl_track_volume") # The tool should have an input schema with required fields assert volume_tool.inputSchema is not None # Try to call without params - MCP may or may not validate result = await call_dsl_tool(reaper_mcp_client, "dsl_track_volume", {}) # Should get an error from our code if MCP doesn't validate assert "Error:" in result or "required" in result.lower() async def test_invalid_track_reference(self, reaper_mcp_client): """Test handling of invalid track reference""" # This will fail at the resolver level result = await call_dsl_tool(reaper_mcp_client, "dsl_track_volume", { "track": "NonExistentTrack_XYZ_123", "volume": "-6dB" }) assert "Error:" in result or "Failed" in result async def test_invalid_time_format(self, reaper_mcp_client): """Test handling of invalid time format""" result = await call_dsl_tool(reaper_mcp_client, "dsl_time_select", { "time": "invalid time format xyz" }) assert "Error:" in result or "Cannot parse time" in result