Merge branch 'master' into feature/gb/paginated-environments-api

* master: (295 commits)
  Add index to labels for `type` and project_id`
  fix rack-proxy dependency in production
  Fixed typo
  fix failing test
  fix Vue warnings for missing element
  UX Guide: Button placement in groups
  Change window size before visiting page, to get correct scroll position
  Fix slash commands spec error
  Move project services to new location under Integrations
  Move webhooks to new a location under Integrations
  Fixed eslint test failure
  Fixed adding to list bug
  Remove unnecessary queries for .atom and .json in Dashboard::ProjectsController#index
  Fixed modal lists dropdown not updating when list is deleted
  Fixed remove btn error after creating new issue in list
  Removed duplicated test
  Removed Masonry, instead uses groups of data
  Uses mixins for repeated functions
  Fixed up specs
  Props use objects with required & type values
  ...

1 files changed, 76 insertions, 0 deletions

diff --git a/spec/features/merge_requests/user_uses_slash_commands_spec.rb b/spec/features/merge_requests/user_uses_slash_commands_spec.rb
index 2582a540240..2f3c3e45ae6 100644
--- a/spec/features/merge_requests/user_uses_slash_commands_spec.rb
+++ b/spec/features/merge_requests/user_uses_slash_commands_spec.rb
@@ -120,5 +120,81 @@ feature 'Merge Requests > User uses slash commands', feature: true, js: true do
         expect(page).not_to have_content '/due 2016-08-28'
       end
     end
+
+    describe '/target_branch command in merge request' do
+      let(:another_project) { create(:project, :public) }
+      let(:new_url_opts) { { merge_request: { source_branch: 'feature' } } }
+
+      before do
+        logout
+        another_project.team << [user, :master]
+        login_with(user)
+      end
+
+      it 'changes target_branch in new merge_request' do
+        visit new_namespace_project_merge_request_path(another_project.namespace, another_project, new_url_opts)
+        click_button "Compare branches and continue"
+
+        fill_in "merge_request_title", with: 'My brand new feature'
+        fill_in "merge_request_description", with: "le feature \n/target_branch fix\nFeature description:"
+        click_button "Submit merge request"
+
+        merge_request = another_project.merge_requests.first
+        expect(merge_request.description).to eq "le feature \nFeature description:"
+        expect(merge_request.target_branch).to eq 'fix'
+      end
+
+      it 'does not change target branch when merge request is edited' do
+        new_merge_request = create(:merge_request, source_project: another_project)
+
+        visit edit_namespace_project_merge_request_path(another_project.namespace, another_project, new_merge_request)
+        fill_in "merge_request_description", with: "Want to update target branch\n/target_branch fix\n"
+        click_button "Save changes"
+
+        new_merge_request = another_project.merge_requests.first
+        expect(new_merge_request.description).to include('/target_branch')
+        expect(new_merge_request.target_branch).not_to eq('fix')
+      end
+    end
+
+    describe '/target_branch command from note' do
+      context 'when the current user can change target branch' do
+        it 'changes target branch from a note' do
+          write_note("message start \n/target_branch merge-test\n message end.")
+
+          expect(page).not_to have_content('/target_branch')
+          expect(page).to have_content('message start')
+          expect(page).to have_content('message end.')
+
+          expect(merge_request.reload.target_branch).to eq 'merge-test'
+        end
+
+        it 'does not fail when target branch does not exists' do
+          write_note('/target_branch totally_not_existing_branch')
+
+          expect(page).not_to have_content('/target_branch')
+
+          expect(merge_request.target_branch).to eq 'feature'
+        end
+      end
+
+      context 'when current user can not change target branch' do
+        let(:guest) { create(:user) }
+        before do
+          project.team << [guest, :guest]
+          logout
+          login_with(guest)
+          visit namespace_project_merge_request_path(project.namespace, project, merge_request)
+        end
+
+        it 'does not change target branch' do
+          write_note('/target_branch merge-test')
+
+          expect(page).not_to have_content '/target_branch merge-test'
+
+          expect(merge_request.target_branch).to eq 'feature'
+        end
+      end
+    end
   end
 end