1 files changed, 123 insertions, 0 deletions

diff --git a/spec/features/projects/issues/design_management/user_links_to_designs_in_issue_spec.rb b/spec/features/projects/issues/design_management/user_links_to_designs_in_issue_spec.rb
new file mode 100644
index 00000000000..8d5e99d7e2b
--- /dev/null
+++ b/spec/features/projects/issues/design_management/user_links_to_designs_in_issue_spec.rb
@@ -0,0 +1,123 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'viewing issues with design references' do
+  include DesignManagementTestHelpers
+
+  let_it_be(:public_project) { create(:project_empty_repo, :public) }
+  let_it_be(:private_project) { create(:project_empty_repo) }
+
+  let(:user) { create(:user) }
+  let(:design_issue) { create(:issue, project: project) }
+  let(:design_a) { create(:design, :with_file, issue: design_issue) }
+  let(:design_b) { create(:design, :with_file, issue: design_issue) }
+  let(:issue_ref) { design_issue.to_reference(public_project) }
+  let(:design_ref_a) { design_a.to_reference(public_project) }
+  let(:design_ref_b) { design_b.to_reference(public_project) }
+  let(:design_tab_ref) { "#{issue_ref} (designs)" }
+
+  let(:description) do
+    <<~MD
+    The designs I mentioned:
+
+    * #{url_for_designs(design_issue)}
+    * #{url_for_design(design_a)}
+    * #{url_for_design(design_b)}
+    MD
+  end
+
+  def visit_page_with_design_references
+    public_issue = create(:issue, project: public_project, description: description)
+    visit project_issue_path(public_issue.project, public_issue)
+  end
+
+  shared_examples 'successful use of design link references' do
+    before do
+      enable_design_management
+    end
+
+    it 'shows the issue description and design references', :aggregate_failures do
+      visit_page_with_design_references
+
+      expect(page).to have_text('The designs I mentioned')
+      expect(page).to have_link(design_tab_ref)
+      expect(page).to have_link(design_ref_a)
+      expect(page).to have_link(design_ref_b)
+    end
+  end
+
+  context 'the user has access to a public project' do
+    let(:project) { public_project }
+
+    it_behaves_like 'successful use of design link references'
+  end
+
+  context 'the user does not have access to a private project' do
+    let(:project) { private_project }
+
+    it 'redacts inaccessible design references', :aggregate_failures do
+      visit_page_with_design_references
+
+      expect(page).to have_text('The designs I mentioned')
+      expect(page).not_to have_link(issue_ref)
+      expect(page).not_to have_link(design_tab_ref)
+      expect(page).not_to have_link(design_ref_a)
+      expect(page).not_to have_link(design_ref_b)
+    end
+  end
+
+  context 'the user has access to a private project' do
+    let(:project) { private_project }
+
+    before do
+      project.add_developer(user)
+      sign_in(user)
+    end
+
+    it_behaves_like 'successful use of design link references'
+
+    context 'design management is entirely disabled' do
+      it 'processes design links as issue references', :aggregate_failures do
+        enable_design_management(false)
+
+        visit_page_with_design_references
+
+        expect(page).to have_text('The designs I mentioned')
+        expect(page).to have_link(issue_ref)
+        expect(page).not_to have_link(design_tab_ref)
+        expect(page).not_to have_link(design_ref_a)
+        expect(page).not_to have_link(design_ref_b)
+      end
+    end
+
+    context 'design management is enabled, but the filter is disabled globally' do
+      before do
+        enable_design_management
+        stub_feature_flags(
+          Banzai::Filter::DesignReferenceFilter::FEATURE_FLAG => false
+        )
+      end
+
+      it 'processes design tab links successfully, and design references as issue references', :aggregate_failures do
+        visit_page_with_design_references
+
+        expect(page).to have_text('The designs I mentioned')
+        expect(page).to have_link(design_tab_ref)
+        expect(page).to have_link(issue_ref)
+        expect(page).not_to have_link(design_ref_a)
+        expect(page).not_to have_link(design_ref_b)
+      end
+    end
+
+    context 'design management is enabled, and the filter is enabled for the current project' do
+      before do
+        stub_feature_flags(
+          Banzai::Filter::DesignReferenceFilter::FEATURE_FLAG => public_project
+        )
+      end
+
+      it_behaves_like 'successful use of design link references'
+    end
+  end
+end