1 files changed, 53 insertions, 0 deletions
diff --git a/spec/helpers/nav_helper_spec.rb b/spec/helpers/nav_helper_spec.rb
new file mode 100644
index 00000000000..e840c927d59
--- /dev/null
+++ b/spec/helpers/nav_helper_spec.rb
@@ -0,0 +1,53 @@
+require 'spec_helper'
+
+describe NavHelper do
+  describe '#header_links' do
+    before do
+      allow(helper).to receive(:session) { {} }
+    end
+
+    context 'when the user is logged in' do
+      let(:user) { build(:user) }
+
+      before do
+        allow(helper).to receive(:current_user).and_return(user)
+        allow(helper).to receive(:can?) { true }
+      end
+
+      it 'has all the expected links by default' do
+        menu_items = [:user_dropdown, :search, :issues, :merge_requests, :todos]
+
+        expect(helper.header_links).to contain_exactly(*menu_items)
+      end
+
+      it 'contains the impersonation link while impersonating' do
+        expect(helper).to receive(:session) { { impersonator_id: 1 } }
+
+        expect(helper.header_links).to include(:admin_impersonation)
+      end
+
+      context 'when the user cannot read cross project' do
+        before do
+          allow(helper).to receive(:can?).with(user, :read_cross_project) { false }
+        end
+
+        it 'does not contain cross project elements when the user cannot read cross project' do
+          expect(helper.header_links).not_to include(:issues, :merge_requests, :todos, :search)
+        end
+
+        it 'shows the search box when the user cannot read cross project and he is visiting a project' do
+          helper.instance_variable_set(:@project, create(:project))
+
+          expect(helper.header_links).to include(:search)
+        end
+      end
+    end
+
+    it 'returns only the sign in and search when the user is not logged in' do
+      allow(helper).to receive(:current_user).and_return(nil)
+      allow(helper).to receive(:can?).with(nil, :read_cross_project) { true }
+
+      expect(helper.header_links).to contain_exactly(:sign_in, :search)
+    end
+  end
+end