Merge branch 'main' into tp

api/tests/unit_tests/services/recommend_app/test_category_order.py

@@ -0,0 +1,26 @@
+import json
+from unittest.mock import patch
+
+from services.recommend_app.category_order import get_explore_app_category_order, order_categories
+
+
+@patch("services.recommend_app.category_order.redis_client.get")
+def test_get_explore_app_category_order_returns_redis_list(mock_get):
+    mock_get.return_value = json.dumps(["C", "A", "B"]).encode()
+
+    assert get_explore_app_category_order("en-US") == ["C", "A", "B"]
+    mock_get.assert_called_once_with("explore:apps:category_order:en-US")
+
+
+@patch("services.recommend_app.category_order.redis_client.get")
+def test_order_categories_uses_redis_order_as_source_of_truth(mock_get):
+    mock_get.return_value = json.dumps(["C", "A", "B"]).encode()
+
+    assert order_categories({"A", "B", "C", "D"}, "en-US") == ["C", "A", "B"]
+
+
+@patch("services.recommend_app.category_order.redis_client.get")
+def test_order_categories_falls_back_to_sorted_categories_without_redis_order(mock_get):
+    mock_get.return_value = None
+
+    assert order_categories({"B", "A", "C"}, "en-US") == ["A", "B", "C"]