tests/conftest.py

"""Shared fixtures for the SYNTHIA test suite."""

import sys
from pathlib import Path

import pytest

# Ensure project root is importable (needed for config, midi, engines, app).
PROJECT_ROOT = Path(__file__).resolve().parent.parent
if str(PROJECT_ROOT) not in sys.path:
    sys.path.insert(0, str(PROJECT_ROOT))


# ---------------------------------------------------------------------------
# Sample MIDI events
# ---------------------------------------------------------------------------

@pytest.fixture
def c_major_chord_events():
    """C-E-G chord with note_on/note_off pairs."""
    return [
        {"type": "note_on",  "note": 60, "velocity": 100, "time": 0.0, "channel": 0},
        {"type": "note_on",  "note": 64, "velocity": 100, "time": 0.0, "channel": 0},
        {"type": "note_on",  "note": 67, "velocity": 100, "time": 0.0, "channel": 0},
        {"type": "note_off", "note": 60, "velocity": 0,   "time": 0.5, "channel": 0},
        {"type": "note_off", "note": 64, "velocity": 0,   "time": 0.5, "channel": 0},
        {"type": "note_off", "note": 67, "velocity": 0,   "time": 0.5, "channel": 0},
    ]


@pytest.fixture
def melody_events():
    """Simple ascending melody: C4 D4 E4."""
    return [
        {"type": "note_on",  "note": 60, "velocity": 80, "time": 0.0, "channel": 0},
        {"type": "note_off", "note": 60, "velocity": 0,  "time": 0.3, "channel": 0},
        {"type": "note_on",  "note": 62, "velocity": 80, "time": 0.4, "channel": 0},
        {"type": "note_off", "note": 62, "velocity": 0,  "time": 0.7, "channel": 0},
        {"type": "note_on",  "note": 64, "velocity": 80, "time": 0.8, "channel": 0},
        {"type": "note_off", "note": 64, "velocity": 0,  "time": 1.1, "channel": 0},
    ]


@pytest.fixture
def single_note_events():
    """One note_on + note_off pair (middle C)."""
    return [
        {"type": "note_on",  "note": 60, "velocity": 100, "time": 0.0, "channel": 0},
        {"type": "note_off", "note": 60, "velocity": 0,   "time": 0.5, "channel": 0},
    ]


# ---------------------------------------------------------------------------
# Source file helpers
# ---------------------------------------------------------------------------

@pytest.fixture
def js_source():
    """Raw contents of static/keyboard.js."""
    return (PROJECT_ROOT / "static" / "keyboard.js").read_text()


@pytest.fixture
def app_source():
    """Raw contents of app.py."""
    return (PROJECT_ROOT / "app.py").read_text()


@pytest.fixture
def html_source():
    """Raw contents of keyboard.html."""
    return (PROJECT_ROOT / "keyboard.html").read_text()