Add a test for checking pages setting

spec/features/projects/pages_spec.rb

+require 'spec_helper'
+
+feature 'Pages', feature: true do
+  given(:project) { create(:empty_project) }
+  given(:user) { create(:user) }
+  given(:role) { :master }
+
+  background do
+    project.team << [user, role]
+
+    login_as(user)
+  end
+
+  shared_examples 'no pages deployed' do
+    scenario 'does not see anything to destroy' do
+      visit namespace_project_pages_path(project.namespace, project)
+
+      expect(page).not_to have_link('Remove pages')
+      expect(page).not_to have_text('Only the project owner can remove pages')
+    end
+  end
+
+  context 'when user is the owner' do
+    background do
+      project.namespace.update(owner: user)
+    end
+
+    context 'when pages deployed' do
+      background do
+        allow_any_instance_of(Project).to receive(:pages_deployed?) { true }
+      end
+
+      scenario 'sees "Remove pages" link' do
+        visit namespace_project_pages_path(project.namespace, project)
+
+        expect(page).to have_link('Remove pages')
+      end
+    end
+
+    it_behaves_like 'no pages deployed'
+  end
+
+  context 'when the user is not the owner' do
+    context 'when pages deployed' do
+      background do
+        allow_any_instance_of(Project).to receive(:pages_deployed?) { true }
+      end
+
+      scenario 'sees "Only the project owner can remove pages" text' do
+        visit namespace_project_pages_path(project.namespace, project)
+
+        expect(page).to have_text('Only the project owner can remove pages')
+      end
+    end
+
+    it_behaves_like 'no pages deployed'
+  end
+end