1 files changed, 147 insertions, 0 deletions
diff --git a/spec/lib/sidebars/menu_spec.rb b/spec/lib/sidebars/menu_spec.rb
new file mode 100644
index 00000000000..7dcf1940442
--- /dev/null
+++ b/spec/lib/sidebars/menu_spec.rb
@@ -0,0 +1,147 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Sidebars::Menu do
+  let(:menu) { described_class.new(context) }
+  let(:context) { Sidebars::Context.new(current_user: nil, container: nil) }
+  let(:nil_menu_item) { Sidebars::NilMenuItem.new(item_id: :foo) }
+
+  describe '#all_active_routes' do
+    it 'gathers all active routes of items and the current menu' do
+      menu.add_item(Sidebars::MenuItem.new(title: 'foo1', link: 'foo1', active_routes: { path: %w(bar test) }))
+      menu.add_item(Sidebars::MenuItem.new(title: 'foo2', link: 'foo2', active_routes: { controller: 'fooc' }))
+      menu.add_item(Sidebars::MenuItem.new(title: 'foo3', link: 'foo3', active_routes: { controller: 'barc' }))
+      menu.add_item(nil_menu_item)
+
+      allow(menu).to receive(:active_routes).and_return({ path: 'foo' })
+
+      expect(menu).to receive(:renderable_items).and_call_original
+      expect(menu.all_active_routes).to eq({ path: %w(foo bar test), controller: %w(fooc barc) })
+    end
+  end
+
+  describe '#render?' do
+    context 'when the menus has no items' do
+      it 'returns false' do
+        expect(menu.render?).to be false
+      end
+    end
+
+    context 'when the menu has items' do
+      it 'returns true' do
+        menu.add_item(Sidebars::MenuItem.new(title: 'foo1', link: 'foo1', active_routes: {}))
+
+        expect(menu.render?).to be true
+      end
+
+      context 'when menu items are NilMenuItem' do
+        it 'returns false' do
+          menu.add_item(nil_menu_item)
+
+          expect(menu.render?).to be false
+        end
+      end
+    end
+  end
+
+  describe '#has_items?' do
+    it 'returns true when there are regular menu items' do
+      menu.add_item(Sidebars::MenuItem.new(title: 'foo1', link: 'foo1', active_routes: {}))
+
+      expect(menu.has_items?).to be true
+    end
+
+    it 'returns true when there are nil menu items' do
+      menu.add_item(nil_menu_item)
+
+      expect(menu.has_items?).to be true
+    end
+  end
+
+  describe '#has_renderable_items?' do
+    it 'returns true when there are regular menu items' do
+      menu.add_item(Sidebars::MenuItem.new(title: 'foo1', link: 'foo1', active_routes: {}))
+
+      expect(menu.has_renderable_items?).to be true
+    end
+
+    it 'returns false when there are nil menu items' do
+      menu.add_item(nil_menu_item)
+
+      expect(menu.has_renderable_items?).to be false
+    end
+
+    it 'returns true when there are both regular and nil menu items' do
+      menu.add_item(Sidebars::MenuItem.new(title: 'foo1', link: 'foo1', active_routes: {}))
+      menu.add_item(nil_menu_item)
+
+      expect(menu.has_renderable_items?).to be true
+    end
+  end
+
+  describe '#renderable_items' do
+    it 'returns only regular menu items' do
+      item = Sidebars::MenuItem.new(title: 'foo1', link: 'foo1', active_routes: {})
+      menu.add_item(item)
+      menu.add_item(nil_menu_item)
+
+      expect(menu.renderable_items.size).to eq 1
+      expect(menu.renderable_items.first).to eq item
+    end
+  end
+
+  describe '#insert_element_before' do
+    let(:item1) { Sidebars::MenuItem.new(title: 'foo1', link: 'foo1', active_routes: {}, item_id: :foo1) }
+    let(:item2) { Sidebars::MenuItem.new(title: 'foo2', link: 'foo2', active_routes: {}, item_id: :foo2) }
+    let(:item3) { Sidebars::MenuItem.new(title: 'foo3', link: 'foo3', active_routes: {}, item_id: :foo3) }
+    let(:list) { [item1, item2] }
+
+    it 'adds element before the specific element class' do
+      menu.insert_element_before(list, :foo2, item3)
+
+      expect(list).to eq [item1, item3, item2]
+    end
+
+    it 'does not add nil elements' do
+      menu.insert_element_before(list, :foo2, nil)
+
+      expect(list).to eq [item1, item2]
+    end
+
+    context 'when reference element does not exist' do
+      it 'adds the element to the top of the list' do
+        menu.insert_element_before(list, :non_existent, item3)
+
+        expect(list).to eq [item3, item1, item2]
+      end
+    end
+  end
+
+  describe '#insert_element_after' do
+    let(:item1) { Sidebars::MenuItem.new(title: 'foo1', link: 'foo1', active_routes: {}, item_id: :foo1) }
+    let(:item2) { Sidebars::MenuItem.new(title: 'foo2', link: 'foo2', active_routes: {}, item_id: :foo2) }
+    let(:item3) { Sidebars::MenuItem.new(title: 'foo3', link: 'foo3', active_routes: {}, item_id: :foo3) }
+    let(:list) { [item1, item2] }
+
+    it 'adds element after the specific element class' do
+      menu.insert_element_after(list, :foo1, item3)
+
+      expect(list).to eq [item1, item3, item2]
+    end
+
+    it 'does not add nil elements' do
+      menu.insert_element_after(list, :foo1, nil)
+
+      expect(list).to eq [item1, item2]
+    end
+
+    context 'when reference element does not exist' do
+      it 'adds the element to the end of the list' do
+        menu.insert_element_after(list, :non_existent, item3)
+
+        expect(list).to eq [item1, item2, item3]
+      end
+    end
+  end
+end