1 files changed, 158 insertions, 0 deletions
diff --git a/spec/features/projects/integrations/user_activates_mattermost_slash_command_spec.rb b/spec/features/projects/integrations/user_activates_mattermost_slash_command_spec.rb
new file mode 100644
index 00000000000..ed0877ab0e9
--- /dev/null
+++ b/spec/features/projects/integrations/user_activates_mattermost_slash_command_spec.rb
@@ -0,0 +1,158 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Set up Mattermost slash commands', :js do
+  describe 'user visits the mattermost slash command config page' do
+    include_context 'project integration activation'
+
+    before do
+      stub_mattermost_setting(enabled: mattermost_enabled)
+      visit_project_integration('Mattermost slash commands')
+    end
+
+    context 'mattermost integration is enabled' do
+      let(:mattermost_enabled) { true }
+
+      describe 'activation' do
+        let(:edit_path) { edit_project_integration_path(project, :mattermost_slash_commands) }
+
+        include_examples 'user activates the Mattermost Slash Command integration'
+      end
+
+      it 'shows the add to mattermost button' do
+        expect(page).to have_link('Add to Mattermost')
+      end
+
+      it 'shows an explanation if user is a member of no teams' do
+        stub_teams(count: 0)
+
+        click_link 'Add to Mattermost'
+
+        expect(page).to have_content('You aren’t a member of any team on the Mattermost instance')
+        expect(page).to have_link('join a team', href: "#{Gitlab.config.mattermost.host}/select_team")
+      end
+
+      it 'shows an explanation if user is a member of 1 team' do
+        stub_teams(count: 1)
+
+        click_link 'Add to Mattermost'
+
+        expect(page).to have_content('The team where the slash commands will be used in')
+        expect(page).to have_content('This is the only available team that you are a member of.')
+      end
+
+      it 'shows a disabled prefilled select if user is a member of 1 team' do
+        teams = stub_teams(count: 1)
+
+        click_link 'Add to Mattermost'
+
+        team_name = teams.first['display_name']
+        select_element = find('#mattermost_team_id')
+        selected_option = select_element.find('option[selected]')
+
+        expect(select_element['disabled']).to eq("true")
+        expect(selected_option).to have_content(team_name.to_s)
+      end
+
+      it 'has a hidden input for the prefilled value if user is a member of 1 team' do
+        teams = stub_teams(count: 1)
+
+        click_link 'Add to Mattermost'
+
+        expect(find('input#mattermost_team_id', visible: false).value).to eq(teams.first['id'])
+      end
+
+      it 'shows an explanation user is a member of multiple teams' do
+        stub_teams(count: 2)
+
+        click_link 'Add to Mattermost'
+
+        expect(page).to have_content('Select the team where the slash commands will be used in')
+        expect(page).to have_content('The list shows all available teams that you are a member of.')
+      end
+
+      it 'shows a select with team options user is a member of multiple teams' do
+        stub_teams(count: 2)
+
+        click_link 'Add to Mattermost'
+
+        select_element = find('#mattermost_team_id')
+
+        expect(select_element['disabled']).to be_falsey
+        expect(select_element.all('option').count).to eq(3)
+      end
+
+      it 'shows an error alert with the error message if there is an error requesting teams' do
+        allow_next_instance_of(Integrations::MattermostSlashCommands) do |integration|
+          allow(integration).to receive(:list_teams).and_return([[], 'test mattermost error message'])
+        end
+
+        click_link 'Add to Mattermost'
+
+        expect(page).to have_selector('.gl-alert')
+        expect(page).to have_content('test mattermost error message')
+      end
+
+      it 'enables the submit button if the required fields are provided', :js do
+        stub_teams(count: 1)
+
+        click_link 'Add to Mattermost'
+
+        expect(find('input[type="submit"]')['disabled']).not_to eq("true")
+      end
+
+      it 'disables the submit button if the required fields are not provided', :js do
+        stub_teams(count: 1)
+
+        click_link 'Add to Mattermost'
+
+        fill_in('mattermost_trigger', with: '')
+
+        expect(find('input[type="submit"]')['disabled']).to eq("true")
+      end
+
+      def stub_teams(count: 0)
+        teams = create_teams(count)
+
+        allow_next_instance_of(Integrations::MattermostSlashCommands) do |integration|
+          allow(integration).to receive(:list_teams).and_return([teams, nil])
+        end
+
+        teams
+      end
+
+      def create_teams(count = 0)
+        teams = []
+
+        count.times do |i|
+          teams.push({ "id" => "x#{i}", "display_name" => "x#{i}-name" })
+        end
+
+        teams
+      end
+    end
+
+    context 'mattermost integration is not enabled' do
+      let(:mattermost_enabled) { false }
+
+      it 'shows the correct trigger url' do
+        value = find_field('request_url').value
+
+        expect(value).to match("api/v4/projects/#{project.id}/services/mattermost_slash_commands/trigger")
+      end
+
+      it 'shows a token placeholder' do
+        token_placeholder = find_field('service_token')['placeholder']
+
+        expect(token_placeholder).to eq('XXxxXXxxXXxxXXxxXXxxXXxx')
+      end
+    end
+  end
+
+  describe 'stable logo url' do
+    it 'shows a publicly available logo' do
+      expect(File.exist?(Rails.root.join('public/slash-command-logo.png'))).to be_truthy
+    end
+  end
+end