✅ Add tests for TypeSerializer class

tests/test_serializer.py

@@ -0,0 +1,24 @@
+import pytest
+
+from fastango.serializer import TypeSerializer
+
+
+class TestTypeSerializer:
+    @pytest.fixture
+    def type_serializer(self):
+        return TypeSerializer()
+
+    def test_serialize_valid(self, type_serializer):
+        obj = {"key": "value"}
+        serialized_data = type_serializer.serialize(obj)
+        assert isinstance(serialized_data, bytes)
+
+    def test_serialize_auto_detection(self, type_serializer):
+        # Define a sample object where auto-detection should be used
+        obj = [{"key1": "value1"}, {"key2": "value2"}]  # List of dictionaries
+
+        # Call the serialize method with from_attributes="auto"
+        serialized_data = type_serializer.serialize(obj, from_attributes="auto")
+
+        # Assert that serialized_data is of type bytes
+        assert isinstance(serialized_data, bytes)