Fixed failing Jest specs

Fixed failing specs due to template changes

spec/frontend/diffs/components/tree_list_spec.js

@@ -91,12 +91,12 @@ describe('Diffs tree list component', () => {
       expect(
         getFileRows()
           .at(0)
-          .text(),
+          .html(),
       ).toContain('index.js');
       expect(
         getFileRows()
           .at(1)
-          .text(),
+          .html(),
       ).toContain('app');
     });
 
@@ -138,7 +138,7 @@ describe('Diffs tree list component', () => {
       wrapper.vm.$store.state.diffs.renderTreeList = false;
 
       return wrapper.vm.$nextTick().then(() => {
-        expect(wrapper.find('.file-row').text()).toContain('index.js');
+        expect(wrapper.find('.file-row').html()).toContain('index.js');
       });
     });
   });

spec/frontend/vue_shared/components/__snapshots__/file_row_header_spec.js.snap

@@ -5,11 +5,11 @@ exports[`File row header component adds multiple ellipsises after 40 characters
   class="file-row-header bg-white sticky-top p-2 js-file-row-header"
   title="app/assets/javascripts/merge_requests/widget/diffs/notes"
 >
-  <span
+  <gl-truncate-stub
     class="bold"
-  >
-    app/assets/javascripts/…/…/diffs/notes
-  </span>
+    position="middle"
+    text="app/assets/javascripts/merge_requests/widget/diffs/notes"
+  />
 </div>
 `;
 
@@ -18,11 +18,11 @@ exports[`File row header component renders file path 1`] = `
   class="file-row-header bg-white sticky-top p-2 js-file-row-header"
   title="app/assets"
 >
-  <span
+  <gl-truncate-stub
     class="bold"
-  >
-    app/assets
-  </span>
+    position="middle"
+    text="app/assets"
+  />
 </div>
 `;
 
@@ -31,10 +31,10 @@ exports[`File row header component trucates path after 40 characters 1`] = `
   class="file-row-header bg-white sticky-top p-2 js-file-row-header"
   title="app/assets/javascripts/merge_requests"
 >
-  <span
+  <gl-truncate-stub
     class="bold"
-  >
-    app/assets/javascripts/merge_requests
-  </span>
+    position="middle"
+    text="app/assets/javascripts/merge_requests"
+  />
 </div>
 `;