Add epic issues feature specs

spec/ee/spec/features/epics/epic_issues_spec.rb

+require 'spec_helper'
+
+describe 'Epic Issues', :js do
+  let(:user) { create(:user) }
+  let(:group) { create(:group, :public) }
+  let(:epic) { create(:epic, group: group) }
+  let(:public_project) { create(:project, :public, group: group) }
+  let(:private_project) { create(:project, :private, group: group) }
+  let(:public_issue) { create(:issue, project: public_project) }
+  let(:private_issue) { create(:issue, project: private_project) }
+
+  let!(:epic_issues) do
+    [
+      create(:epic_issue, epic: epic, issue: public_issue),
+      create(:epic_issue, epic: epic, issue: private_issue)
+    ]
+  end
+
+  def visit_epic
+    sign_in(user)
+    visit group_epic_path(group, epic)
+    wait_for_requests
+  end
+
+  context 'when user is not a group member of a public group' do
+    before do
+      visit_epic
+    end
+
+    it 'user can see issues from public project but cannot delete the associations' do
+      within('.related-issues-block ul.issuable-list') do
+        expect(page).to have_selector('li', count: 1)
+        expect(page).to have_content(public_issue.title)
+        expect(page).not_to have_selector('button.js-issue-token-remove-button')
+      end
+    end
+
+    it 'user cannot add new issues to the epic' do
+      expect(page).not_to have_selector('.related-issues-block h3.panel-title button')
+    end
+  end
+
+  context 'when user is a group member' do
+    before do
+      group.add_developer(user)
+      visit_epic
+    end
+
+    it 'user can see all issues of the group and delete the associations' do
+      within('.related-issues-block ul.issuable-list') do
+        expect(page).to have_selector('li', count: 2)
+        expect(page).to have_content(public_issue.title)
+        expect(page).to have_content(private_issue.title)
+
+        first('li button.js-issue-token-remove-button').click
+      end
+
+      wait_for_requests
+
+      within('.related-issues-block ul.issuable-list') do
+        expect(page).to have_selector('li', count: 1)
+      end
+    end
+
+    it 'user can add new issues to the epic' do
+      issue_to_add = create(:issue, project: private_project)
+      issue_invalid = create(:issue)
+      references = "#{issue_to_add.to_reference(full: true)} #{issue_invalid.to_reference(full: true)}"
+
+      find('.related-issues-block h3.panel-title button').click
+      find('.js-add-issuable-form-input').set references
+      find('.js-add-issuable-form-add-button').click
+
+      wait_for_requests
+
+      within('.related-issues-block ul.issuable-list') do
+        expect(page).to have_selector('li', count: 3)
+        expect(page).to have_content(issue_to_add.title)
+      end
+    end
+  end
+end