Initial public release

tests/test_regime_engine.py

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+# tests/test_regime_engine.py
+import json
+import pytest
+from unittest.mock import AsyncMock, MagicMock
+from hydra.regime.engine import RegimeEngine
+from hydra.regime.detector import RegimeDetector
+
+
+@pytest.fixture
+def mock_redis():
+    r = MagicMock()
+    r.get = MagicMock(return_value=json.dumps({
+        "BBB_5_2.0_2.0": 0.02, "ADX_14": 30.0, "EMA_50": 45000.0,
+        "close": 50000.0,
+        "calculated_at": 1000000
+    }))
+    r.set = AsyncMock()
+    r.keys = MagicMock(return_value=["hydra:indicator:binance:BTC/USDT:1m"])
+    r.pubsub = MagicMock()
+    return r
+
+
+@pytest.fixture
+def engine(mock_redis):
+    return RegimeEngine(redis_client=mock_redis, detector=RegimeDetector())
+
+
+@pytest.mark.asyncio
+async def test_handle_event_writes_regime(engine, mock_redis):
+    await engine._handle_event("binance", "BTC/USDT", "1m")
+    mock_redis.set.assert_called_once()
+    key, value = mock_redis.set.call_args[0]
+    assert key == "hydra:regime:binance:BTC/USDT:1m"
+    data = json.loads(value)
+    assert data["regime"] == "trending_up"
+    assert "detected_at" in data
+
+
+@pytest.mark.asyncio
+async def test_handle_event_skips_when_no_indicator(engine, mock_redis):
+    mock_redis.get = MagicMock(return_value=None)
+    await engine._handle_event("binance", "BTC/USDT", "1m")
+    mock_redis.set.assert_not_called()
+
+
+@pytest.mark.asyncio
+async def test_handle_event_does_not_raise(engine, mock_redis):
+    mock_redis.get = MagicMock(side_effect=RuntimeError("redis error"))
+    await engine._handle_event("binance", "BTC/USDT", "1m")
+
+
+@pytest.mark.asyncio
+async def test_cold_start_processes_all_keys(engine, mock_redis):
+    mock_redis.keys = MagicMock(return_value=[
+        "hydra:indicator:binance:BTC/USDT:1m",
+        "hydra:indicator:upbit:BTC/KRW:1h",
+    ])
+    await engine.cold_start()
+    assert mock_redis.set.call_count == 2