feat: expand platform APIs, sources, and test coverage

tests/apps/exchange/test_serializers.py

@@ -0,0 +1,29 @@
+"""Tests for exchange serializers."""
+
+from apps.exchange.serializers import ExchangeCopyRequestSerializer
+from django.test import SimpleTestCase
+
+
+class ExchangeCopyRequestSerializerTest(SimpleTestCase):
+    def test_single_mode_requires_table(self):
+        serializer = ExchangeCopyRequestSerializer(data={"mode": "single"})
+        self.assertFalse(serializer.is_valid())
+        self.assertIn("table", serializer.errors)
+
+    def test_selected_mode_requires_tables(self):
+        serializer = ExchangeCopyRequestSerializer(data={"mode": "selected"})
+        self.assertFalse(serializer.is_valid())
+        self.assertIn("tables", serializer.errors)
+
+    def test_table_and_tables_are_rejected_for_wrong_modes(self):
+        serializer_with_table = ExchangeCopyRequestSerializer(
+            data={"mode": "all", "table": "parsers_manufacturer"}
+        )
+        self.assertFalse(serializer_with_table.is_valid())
+        self.assertIn("table", serializer_with_table.errors)
+
+        serializer_with_tables = ExchangeCopyRequestSerializer(
+            data={"mode": "all", "tables": ["parsers_manufacturer"]}
+        )
+        self.assertFalse(serializer_with_tables.is_valid())
+        self.assertIn("tables", serializer_with_tables.errors)