1 files changed, 24 insertions, 2 deletions
diff --git a/spec/javascripts/diffs/store/utils_spec.js b/spec/javascripts/diffs/store/utils_spec.js
index d4ef17c5ef8..f096638e3d6 100644
--- a/spec/javascripts/diffs/store/utils_spec.js
+++ b/spec/javascripts/diffs/store/utils_spec.js
@@ -150,7 +150,7 @@ describe('DiffsStoreUtils', () => {
         note: {
           noteable_type: options.noteableType,
           noteable_id: options.noteableData.id,
-          commit_id: '',
+          commit_id: undefined,
           type: DIFF_NOTE_TYPE,
           line_code: options.noteTargetLine.line_code,
           note: options.note,
@@ -209,7 +209,7 @@ describe('DiffsStoreUtils', () => {
         note: {
           noteable_type: options.noteableType,
           noteable_id: options.noteableData.id,
-          commit_id: '',
+          commit_id: undefined,
           type: LEGACY_DIFF_NOTE_TYPE,
           line_code: options.noteTargetLine.line_code,
           note: options.note,
@@ -559,4 +559,26 @@ describe('DiffsStoreUtils', () => {
       ]);
     });
   });
+
+  describe('getDiffMode', () => {
+    it('returns mode when matched in file', () => {
+      expect(
+        utils.getDiffMode({
+          renamed_file: true,
+        }),
+      ).toBe('renamed');
+    });
+
+    it('returns mode_changed if key has no match', () => {
+      expect(
+        utils.getDiffMode({
+          mode_changed: true,
+        }),
+      ).toBe('mode_changed');
+    });
+
+    it('defaults to replaced', () => {
+      expect(utils.getDiffMode({})).toBe('replaced');
+    });
+  });
 });