1 files changed, 92 insertions, 0 deletions
diff --git a/spec/features/projects/merge_requests/user_views_open_merge_request_spec.rb b/spec/features/projects/merge_requests/user_views_open_merge_request_spec.rb
new file mode 100644
index 00000000000..8970cf54457
--- /dev/null
+++ b/spec/features/projects/merge_requests/user_views_open_merge_request_spec.rb
@@ -0,0 +1,92 @@
+require 'spec_helper'
+
+describe 'User views an open merge request' do
+  let(:merge_request) do
+    create(:merge_request, source_project: project, target_project: project, description: '# Description header')
+  end
+
+  context 'when a merge request does not have repository' do
+    let(:project) { create(:project, :public) }
+
+    before do
+      visit(merge_request_path(merge_request))
+    end
+
+    it 'renders both the title and the description' do
+      node = find('.wiki h1 a#user-content-description-header')
+      expect(node[:href]).to end_with('#description-header')
+
+      # Work around a weird Capybara behavior where calling `parent` on a node
+      # returns the whole document, not the node's actual parent element
+      expect(find(:xpath, "#{node.path}/..").text).to eq(merge_request.description[2..-1])
+
+      expect(page).to have_content(merge_request.title).and have_content(merge_request.description)
+    end
+  end
+
+  context 'when a merge request has repository', :js do
+    let(:project) { create(:project, :public, :repository) }
+
+    context 'when rendering description preview' do
+      let(:user) { create(:user) }
+
+      before do
+        project.add_master(user)
+        sign_in(user)
+
+        visit(edit_project_merge_request_path(project, merge_request))
+      end
+
+      it 'renders empty description preview' do
+        find('.gfm-form').fill_in(:merge_request_description, with: '')
+
+        page.within('.gfm-form') do
+          click_link('Preview')
+
+          expect(find('.js-md-preview')).to have_content('Nothing to preview.')
+        end
+      end
+
+      it 'renders description preview' do
+        find('.gfm-form').fill_in(:merge_request_description, with: ':+1: Nice')
+
+        page.within('.gfm-form') do
+          click_link('Preview')
+
+          expect(find('.js-md-preview')).to have_css('gl-emoji')
+        end
+
+        expect(find('.gfm-form')).to have_css('.js-md-preview').and have_link('Write')
+        expect(find('#merge_request_description', visible: false)).not_to be_visible
+      end
+    end
+
+    context 'when the branch is rebased on the target' do
+      let(:merge_request) { create(:merge_request, :rebased, source_project: project, target_project: project) }
+
+      before do
+        visit(merge_request_path(merge_request))
+      end
+
+      it 'does not show diverged commits count' do
+        page.within('.mr-source-target') do
+          expect(page).not_to have_content(/([0-9]+ commit[s]? behind)/)
+        end
+      end
+    end
+
+    context 'when the branch is diverged on the target' do
+      let(:merge_request) { create(:merge_request, :diverged, source_project: project, target_project: project) }
+
+      before do
+        visit(merge_request_path(merge_request))
+      end
+
+      it 'shows diverged commits count' do
+        page.within('.mr-source-target') do
+          expect(page).to have_content(/([0-9]+ commits behind)/)
+        end
+      end
+    end
+  end
+end