test: cover audio, sequences, pattern direction, and settings

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/test_sequence_playback_loop.py

@@ -0,0 +1,30 @@
+"""Sequence playback loop flag coercion."""
+
+import os
+import sys
+
+PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+SRC_PATH = os.path.join(PROJECT_ROOT, "src")
+if SRC_PATH not in sys.path:
+    sys.path.insert(0, SRC_PATH)
+
+from util.sequence_playback import (  # noqa: E402
+    _coerce_loop,
+    _ordered_unique_preset_ids_in_lane,
+)
+
+
+def test_coerce_loop():
+    assert _coerce_loop({"loop": True}) is True
+    assert _coerce_loop({"loop": False}) is False
+    assert _coerce_loop({"sequence_loop": 0}) is False
+    assert _coerce_loop({}) is True
+
+
+def test_ordered_unique_preset_ids_in_lane():
+    lane = [
+        {"preset_id": "6", "beats": 1},
+        {"preset_id": "4", "beats": 2},
+        {"preset_id": "6", "beats": 1},
+    ]
+    assert _ordered_unique_preset_ids_in_lane(lane) == ["6", "4"]