Added integration tests

spec/features/projects/services/mattermost_slash_command_spec.rb

@@ -10,23 +10,18 @@ feature 'Setup Mattermost slash commands', feature: true do
   before do
     project.team << [user, :master]
     login_as(user)
+    visit edit_namespace_project_service_path(project.namespace, project, service)
   end
 
-  describe 'user visites the mattermost slash command config page', js: true do
+  describe 'user visits the mattermost slash command config page', js: true do
     it 'shows a help message' do
-      visit edit_namespace_project_service_path(project.namespace, project, service)
-
       wait_for_ajax
 
       expect(page).to have_content("This service allows GitLab users to perform common")
     end
-  end
-
-  describe 'saving a token' do
-    let(:token) { ('a'..'z').to_a.join }
 
     it 'shows the token after saving' do
-      visit edit_namespace_project_service_path(project.namespace, project, service)
+      token = ('a'..'z').to_a.join
 
       fill_in 'service_token', with: token
       click_on 'Save'
@@ -35,14 +30,58 @@ feature 'Setup Mattermost slash commands', feature: true do
 
       expect(value).to eq(token)
     end
+
+    describe 'mattermost service is enabled' do
+      let(:info) { find('.services-installation-info') }
+
+      before do
+        Gitlab.config.mattermost.enabled = true
       end
 
-  describe 'the trigger url' do
-    it 'shows the correct url' do
-      visit edit_namespace_project_service_path(project.namespace, project, service)
+      it 'shows the correct mattermost url' do
+        expect(page).to have_content Gitlab.config.mattermost.host
+      end
+
+      describe 'mattermost service is active' do
+        before do
+          service.active = true
+        end
+
+        it 'shows that mattermost is active' do
+          expect(info).to have_content 'Installed'
+          expect(info).not_to have_content 'Not installed'
+        end
 
+        it 'shows the edit mattermost button' do
+          expect(info).to have_button 'Edit Mattermost'
+        end
+      end
+
+      describe 'mattermost service is not active' do
+        before do
+          service.active = false
+        end
+
+        it 'shows that mattermost is not active' do
+          expect(info).to have_content 'Not installed'
+        end
+
+        it 'shows the add to mattermost button' do
+          expect(info).to have_button 'Add to Mattermost'
+        end
+      end
+    end
+
+    describe 'mattermost service is not enabled' do
+      before do
+        Gitlab.config.mattermost.enabled = false
+      end
+
+      it 'shows the correct trigger url' do
         value = find_field('request_url').value
+
         expect(value).to match("api/v3/projects/#{project.id}/services/mattermost_slash_commands/trigger")
       end
     end
+  end
 end