diff --git a/tasks/tests/unit/test_upload_processing_task.py b/tasks/tests/unit/test_upload_processing_task.py
index 7cafdd534..2f22fa7e5 100644
--- a/tasks/tests/unit/test_upload_processing_task.py
+++ b/tasks/tests/unit/test_upload_processing_task.py
@@ -8,11 +8,16 @@
 from shared.reports.enums import UploadState
 from shared.reports.resources import Report, ReportFile, ReportLine, ReportTotals
 from shared.storage.exceptions import FileNotInStorageError
+from shared.torngit.exceptions import TorngitObjectNotFoundError
 from shared.upload.constants import UploadErrorCode
 
 from database.models import CommitReport, ReportDetails, UploadError
 from database.tests.factories import CommitFactory, UploadFactory
-from helpers.exceptions import ReportEmptyError, ReportExpiredException
+from helpers.exceptions import (
+    ReportEmptyError,
+    ReportExpiredException,
+    RepositoryWithoutValidBotError,
+)
 from helpers.parallel import ParallelProcessing
 from rollouts import USE_LABEL_INDEX_IN_REPORT_PROCESSING_BY_REPO_ID
 from services.archive import ArchiveService
@@ -22,7 +27,11 @@
     SessionAdjustmentResult,
     UploadProcessingResult,
 )
-from tasks.upload_processor import UploadProcessorTask, save_report_results
+from tasks.upload_processor import (
+    UploadProcessorTask,
+    load_commit_diff,
+    save_report_results,
+)
 
 here = Path(__file__)
 
@@ -1036,6 +1045,29 @@ def test_save_report_results_apply_diff_not_there(
         }
         assert report.diff_totals is None
 
+    def test_load_commit_diff_no_diff(
+        self, mocker, mock_configuration, dbsession, mock_repo_provider
+    ):
+        commit = CommitFactory.create()
+        dbsession.add(commit)
+        dbsession.flush()
+        mock_repo_provider.get_commit_diff.side_effect = TorngitObjectNotFoundError(
+            "response", "message"
+        )
+        diff = load_commit_diff(commit, None, None)
+        assert diff is None
+
+    def test_load_commit_diff_no_bot(self, mocker, mock_configuration, dbsession):
+        commit = CommitFactory.create()
+        dbsession.add(commit)
+        dbsession.flush()
+        mock_get_repo_service = mocker.patch(
+            "tasks.upload_processor.get_repo_provider_service"
+        )
+        mock_get_repo_service.side_effect = RepositoryWithoutValidBotError()
+        diff = load_commit_diff(commit, None, None)
+        assert diff is None
+
     def test_save_report_results_apply_diff_valid(
         self, mocker, mock_configuration, dbsession, mock_storage
     ):