1 files changed, 16 insertions, 0 deletions
diff --git a/spec/frontend/jobs/store/utils_spec.js b/spec/frontend/jobs/store/utils_spec.js
index 35ac2945ab5..0c5fa150002 100644
--- a/spec/frontend/jobs/store/utils_spec.js
+++ b/spec/frontend/jobs/store/utils_spec.js
@@ -19,6 +19,7 @@ import {
   collapsibleTrace,
   collapsibleTraceIncremental,
   multipleCollapsibleSectionsMockData,
+  backwardsCompatibilityTrace,
 } from '../components/log/mock_data';
 
 describe('Jobs Store Utils', () => {
@@ -297,6 +298,21 @@ describe('Jobs Store Utils', () => {
         expect(result.parsedLines[1].lines).toEqual(expect.arrayContaining(innerSection));
       });
     });
+
+    describe('backwards compatibility', () => {
+      beforeEach(() => {
+        result = logLinesParser(backwardsCompatibilityTrace);
+      });
+
+      it('should return an object with a parsedLines prop', () => {
+        expect(result).toEqual(
+          expect.objectContaining({
+            parsedLines: expect.any(Array),
+          }),
+        );
+        expect(result.parsedLines).toHaveLength(1);
+      });
+    });
   });
 
   describe('findOffsetAndRemove', () => {