1 files changed, 61 insertions, 0 deletions
diff --git a/spec/controllers/help_controller_spec.rb b/spec/controllers/help_controller_spec.rb
new file mode 100644
index 00000000000..93535ced7ae
--- /dev/null
+++ b/spec/controllers/help_controller_spec.rb
@@ -0,0 +1,61 @@
+require 'spec_helper'
+
+describe HelpController do
+  let(:user) { create(:user) }
+
+  before do
+    sign_in(user)
+  end
+
+  describe 'GET #show' do
+    context 'for Markdown formats' do
+      context 'when requested file exists' do
+        before do
+          get :show, category: 'ssh', file: 'README', format: :md
+        end
+
+        it 'assigns to @markdown' do
+          expect(assigns[:markdown]).not_to be_empty
+        end
+
+        it 'renders HTML' do
+          expect(response).to render_template('show.html.haml')
+          expect(response.content_type).to eq 'text/html'
+        end
+      end
+
+      context 'when requested file is missing' do
+        it 'renders not found' do
+          get :show, category: 'foo', file: 'bar', format: :md
+          expect(response).to be_not_found
+        end
+      end
+    end
+
+    context 'for image formats' do
+      context 'when requested file exists' do
+        it 'renders the raw file' do
+          get :show, category: 'workflow/protected_branches',
+            file: 'protected_branches1', format: :png
+          expect(response).to be_success
+          expect(response.content_type).to eq 'image/png'
+          expect(response.headers['Content-Disposition']).to match(/^inline;/)
+        end
+      end
+
+      context 'when requested file is missing' do
+        it 'renders not found' do
+          get :show, category: 'foo', file: 'bar', format: :png
+          expect(response).to be_not_found
+        end
+      end
+    end
+
+    context 'for other formats' do
+      it 'always renders not found' do
+        get :show, category: 'ssh', file: 'README', format: :foo
+        expect(response).to be_not_found
+      end
+    end
+  end
+end