Add basic migrations, query expression resolver

tests/conftest.py

@@ -0,0 +1,31 @@
+import pytest
+from redis import Redis
+
+from redis_developer.connections import get_redis_connection
+from redis_developer.orm.migrations.migrator import Migrator
+
+
+@pytest.fixture(scope="module", autouse=True)
+def migrations():
+    Migrator().run()
+
+
+@pytest.fixture
+def redis():
+    yield get_redis_connection()
+
+
+@pytest.fixture
+def key_prefix():
+    # TODO
+    yield "redis-developer"
+    
+
+def _delete_test_keys(prefix: str, conn: Redis):
+    for key in conn.scan_iter(f"{prefix}:*"):
+        conn.delete(key)
+
+
+@pytest.fixture(scope="function", autouse=True)
+def delete_test_keys(redis, request, key_prefix):
+    _delete_test_keys(key_prefix, redis)