add test for togows utils

backend/Pipfile

@@ -28,6 +28,7 @@ jupyter = "*"
 factory-boy = "*"
 pytest-factoryboy = "*"
 pylint = "*"
+mock = "*"
 
 [packages]
 certifi = "*"

backend/metagenedb/common/utils/external_api/test_togows.py

+from unittest import TestCase
+
+import mock
+from django.conf import settings
+
+from metagenedb.common.utils.external_api.togows import GetFunctionExternalInfo
+
+
+class TestGetFunctionExternalInfo(TestCase):
+
+    def test_get_details_unknown_source(self):
+        external_info_retriever = GetFunctionExternalInfo("test_id", "unknown")
+        self.assertDictEqual(external_info_retriever.get_details(), {})
+
+    def test_get_details_kegg(self):
+        with mock.patch('metagenedb.common.utils.external_api.togows.TogoWSEntryAPI') as MockTogoWSEntryAPI:
+            MockTogoWSEntryAPI.return_value.get.return_value = [{"info": "some_info"}]
+            test_url = "http://test.com/"
+            test_id = "test_kegg_id"
+            MockTogoWSEntryAPI.return_value.url = test_url
+            expected_dict = {
+                'info': 'some_info',
+                settings.API_KEY_ADDITIONAL_INFO: {
+                    'comment': f"Information retrieved from external source: {test_url}",
+                    'url': f"{test_url}{test_id}"
+                }
+            }
+            external_info_retriever = GetFunctionExternalInfo(test_id, "kegg")
+            self.assertDictEqual(external_info_retriever.get_details(), expected_dict)