1 files changed, 6 insertions, 0 deletions
diff --git a/spec/frontend/diffs/components/diff_file_header_spec.js b/spec/frontend/diffs/components/diff_file_header_spec.js
index e0b7e0bc0f3..8e6a5576015 100644
--- a/spec/frontend/diffs/components/diff_file_header_spec.js
+++ b/spec/frontend/diffs/components/diff_file_header_spec.js
@@ -61,6 +61,7 @@ describe('DiffFileHeader component', () => {
   const findTitleLink = () => wrapper.find({ ref: 'titleWrapper' });
   const findExpandButton = () => wrapper.find({ ref: 'expandDiffToFullFileButton' });
   const findFileActions = () => wrapper.find('.file-actions');
+  const findActiveHeader = () => wrapper.find('.is-active');
   const findModeChangedLine = () => wrapper.find({ ref: 'fileMode' });
   const findLfsLabel = () => wrapper.find('.label-lfs');
   const findToggleDiscussionsButton = () => wrapper.find({ ref: 'toggleDiscussionsButton' });
@@ -143,6 +144,11 @@ describe('DiffFileHeader component', () => {
     expect(wrapper.find(ClipboardButton).exists()).toBe(true);
   });
 
+  it('contains a active header class if this is the active file header', () => {
+    createComponent({ isActive: true });
+    expect(findActiveHeader().exists()).toBe(true);
+  });
+
   describe('for submodule', () => {
     const submoduleDiffFile = {
       ...diffFile,