1 files changed, 28 insertions, 0 deletions
diff --git a/spec/frontend/lib/utils/dom_utils_spec.js b/spec/frontend/lib/utils/dom_utils_spec.js
index b537e6b2bf8..d6bac935970 100644
--- a/spec/frontend/lib/utils/dom_utils_spec.js
+++ b/spec/frontend/lib/utils/dom_utils_spec.js
@@ -1,8 +1,10 @@
 import { setHTMLFixture, resetHTMLFixture } from 'helpers/fixtures';
+
 import {
   addClassIfElementExists,
   canScrollUp,
   canScrollDown,
+  getContentWrapperHeight,
   parseBooleanDataAttributes,
   isElementVisible,
   getParents,
@@ -235,4 +237,30 @@ describe('DOM Utils', () => {
       expect(div.getAttribute('title')).toBe('another test');
     });
   });
+
+  describe('getContentWrapperHeight', () => {
+    const fixture = `
+      <div>
+        <div class="content-wrapper">
+          <div class="content"></div>
+        </div>
+      </div>
+    `;
+
+    beforeEach(() => {
+      setHTMLFixture(fixture);
+    });
+
+    afterEach(() => {
+      resetHTMLFixture();
+    });
+
+    it('returns the height of an element that exists', () => {
+      expect(getContentWrapperHeight('.content-wrapper')).toBe('0px');
+    });
+
+    it('returns an empty string for a class that does not exist', () => {
+      expect(getContentWrapperHeight('.does-not-exist')).toBe('');
+    });
+  });
 });