1 files changed, 10 insertions, 6 deletions
diff --git a/spec/features/projects/blobs/edit_spec.rb b/spec/features/projects/blobs/edit_spec.rb
index a369bacc4dd..5aca994f53e 100644
--- a/spec/features/projects/blobs/edit_spec.rb
+++ b/spec/features/projects/blobs/edit_spec.rb
@@ -11,10 +11,6 @@ RSpec.describe 'Editing file blob', :js do
   let(:file_path) { project.repository.ls_files(project.repository.root_ref)[1] }
   let(:readme_file_path) { 'README.md' }
 
-  before do
-    stub_feature_flags(web_ide_default: false)
-  end
-
   context 'as a developer' do
     let(:user) { create(:user) }
     let(:role) { :developer }
@@ -36,8 +32,7 @@ RSpec.describe 'Editing file blob', :js do
 
     def fill_editor(content: 'class NextFeature\\nend\\n')
       wait_for_requests
-      find('#editor')
-      execute_script("ace.edit('editor').setValue('#{content}')")
+      execute_script("monaco.editor.getModels()[0].setValue('#{content}')")
     end
 
     context 'from MR diff' do
@@ -67,6 +62,15 @@ RSpec.describe 'Editing file blob', :js do
       expect(find_by_id('file_path').value).to eq('ci/.gitlab-ci.yml')
     end
 
+    it 'updating file path updates syntax highlighting' do
+      visit project_edit_blob_path(project, tree_join(branch, readme_file_path))
+      expect(find('#editor')['data-mode-id']).to eq('markdown')
+
+      find('#file_path').send_keys('foo.txt') do
+        expect(find('#editor')['data-mode-id']).to eq('plaintext')
+      end
+    end
+
     context 'from blob file path' do
       before do
         visit project_blob_path(project, tree_join(branch, file_path))