1 files changed, 40 insertions, 0 deletions
diff --git a/spec/lib/gitlab/middleware/sidekiq_web_static_spec.rb b/spec/lib/gitlab/middleware/sidekiq_web_static_spec.rb
new file mode 100644
index 00000000000..e6815a46a56
--- /dev/null
+++ b/spec/lib/gitlab/middleware/sidekiq_web_static_spec.rb
@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Middleware::SidekiqWebStatic do
+  let(:app) { double(:app) }
+  let(:middleware) { described_class.new(app) }
+  let(:env) { {} }
+
+  describe '#call' do
+    before do
+      env['HTTP_X_SENDFILE_TYPE'] = 'X-Sendfile'
+      env['PATH_INFO'] = path
+    end
+
+    context 'with an /admin/sidekiq route' do
+      let(:path) { '/admin/sidekiq/javascripts/application.js'}
+
+      it 'deletes the HTTP_X_SENDFILE_TYPE header' do
+        expect(app).to receive(:call)
+
+        middleware.call(env)
+
+        expect(env['HTTP_X_SENDFILE_TYPE']).to be_nil
+      end
+    end
+
+    context 'with some static asset route' do
+      let(:path) { '/assets/test.png' }
+
+      it 'keeps the HTTP_X_SENDFILE_TYPE header' do
+        expect(app).to receive(:call)
+
+        middleware.call(env)
+
+        expect(env['HTTP_X_SENDFILE_TYPE']).to eq('X-Sendfile')
+      end
+    end
+  end
+end