Convert "New menu" feature spec to a view spec

A feature spec to test this simple behavior takes about 2 minutes to run
in CI. Everything it's testing is conditionals and `href` attributes,
which can easily be done in a view spec that runs in about 8 seconds.

spec/features/explore/new_menu_spec.rb

-require 'spec_helper'
-
-describe 'Top Plus Menu', :js do
-  let(:user) { create(:user) }
-  let(:group) { create(:group) }
-  let(:project) { create(:project, :repository, creator: user, namespace: user.namespace) }
-  let(:public_project) { create(:project, :public) }
-
-  before do
-    group.add_owner(user)
-  end
-
-  context 'used by full user' do
-    before do
-      sign_in(user)
-    end
-
-    it 'click on New project shows new project page' do
-      visit root_dashboard_path
-
-      click_topmenuitem("New project")
-
-      expect(page).to have_content('Project URL')
-      expect(page).to have_content('Project name')
-    end
-
-    it 'click on New group shows new group page' do
-      visit root_dashboard_path
-
-      click_topmenuitem("New group")
-
-      expect(page).to have_content('Group URL')
-      expect(page).to have_content('Group name')
-    end
-
-    it 'click on New snippet shows new snippet page' do
-      visit root_dashboard_path
-
-      click_topmenuitem("New snippet")
-
-      expect(page).to have_content('New Snippet')
-      expect(page).to have_content('Title')
-    end
-
-    it 'click on New issue shows new issue page' do
-      visit project_path(project)
-
-      click_topmenuitem("New issue")
-
-      expect(page).to have_content('New Issue')
-      expect(page).to have_content('Title')
-    end
-
-    it 'click on New merge request shows new merge request page' do
-      visit project_path(project)
-
-      click_topmenuitem("New merge request")
-
-      expect(page).to have_content('New Merge Request')
-      expect(page).to have_content('Source branch')
-      expect(page).to have_content('Target branch')
-    end
-
-    it 'click on New project snippet shows new snippet page' do
-      visit project_path(project)
-
-      page.within '.header-content' do
-        find('.header-new-dropdown-toggle').click
-        expect(page).to have_selector('.header-new.dropdown.show', count: 1)
-        find('.header-new-project-snippet a').click
-      end
-
-      expect(page).to have_content('New Snippet')
-      expect(page).to have_content('Title')
-    end
-
-    it 'Click on New subgroup shows new group page', :nested_groups do
-      visit group_path(group)
-
-      click_topmenuitem("New subgroup")
-
-      expect(page).to have_content('Group URL')
-      expect(page).to have_content('Group name')
-    end
-
-    it 'Click on New project in group shows new project page' do
-      visit group_path(group)
-
-      page.within '.header-content' do
-        find('.header-new-dropdown-toggle').click
-        expect(page).to have_selector('.header-new.dropdown.show', count: 1)
-        find('.header-new-group-project a').click
-      end
-
-      expect(page).to have_content('Project URL')
-      expect(page).to have_content('Project name')
-    end
-  end
-
-  context 'used by guest user' do
-    let(:guest_user) { create(:user) }
-
-    before do
-      group.add_guest(guest_user)
-      project.add_guest(guest_user)
-
-      sign_in(guest_user)
-    end
-
-    it 'click on New issue shows new issue page' do
-      visit project_path(project)
-
-      click_topmenuitem("New issue")
-
-      expect(page).to have_content('New Issue')
-      expect(page).to have_content('Title')
-    end
-
-    it 'has no New merge request menu item' do
-      visit project_path(project)
-
-      hasnot_topmenuitem("New merge request")
-    end
-
-    it 'has no New project snippet menu item' do
-      visit project_path(project)
-
-      expect(find('.header-new.dropdown')).not_to have_selector('.header-new-project-snippet')
-    end
-
-    it 'public project has no New merge request menu item' do
-      visit project_path(public_project)
-
-      hasnot_topmenuitem("New merge request")
-    end
-
-    it 'public project has no New project snippet menu item' do
-      visit project_path(public_project)
-
-      expect(find('.header-new.dropdown')).not_to have_selector('.header-new-project-snippet')
-    end
-
-    it 'has no New subgroup menu item' do
-      visit group_path(group)
-
-      hasnot_topmenuitem("New subgroup")
-    end
-
-    it 'has no New project for group menu item' do
-      visit group_path(group)
-
-      expect(find('.header-new.dropdown')).not_to have_selector('.header-new-group-project')
-    end
-  end
-
-  def click_topmenuitem(item_name)
-    page.within '.header-content' do
-      find('.header-new-dropdown-toggle').click
-      expect(page).to have_selector('.header-new.dropdown.show', count: 1)
-      click_link item_name
-    end
-  end
-
-  def hasnot_topmenuitem(item_name)
-    expect(find('.header-new.dropdown')).not_to have_content(item_name)
-  end
-end

spec/views/layouts/header/_new_dropdown.haml_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'layouts/header/_new_dropdown' do
+  let(:user) { create(:user) }
+
+  context 'group-specific links' do
+    let(:group) { create(:group) }
+
+    before do
+      stub_current_user(user)
+
+      assign(:group, group)
+    end
+
+    context 'as a Group owner' do
+      before do
+        group.add_owner(user)
+      end
+
+      it 'has a "New project" link' do
+        render
+
+        expect(rendered).to have_link(
+          'New project',
+          href: new_project_path(namespace_id: group.id)
+        )
+      end
+
+      it 'has a "New subgroup" link', :nested_groups do
+        render
+
+        expect(rendered).to have_link(
+          'New subgroup',
+          href: new_group_path(parent_id: group.id)
+        )
+      end
+    end
+  end
+
+  context 'project-specific links' do
+    let(:project) { create(:project, creator: user, namespace: user.namespace) }
+
+    before do
+      assign(:project, project)
+    end
+
+    context 'as a Project owner' do
+      before do
+        stub_current_user(user)
+      end
+
+      it 'has a "New issue" link' do
+        render
+
+        expect(rendered).to have_link(
+          'New issue',
+          href: new_project_issue_path(project)
+        )
+      end
+
+      it 'has a "New merge request" link' do
+        render
+
+        expect(rendered).to have_link(
+          'New merge request',
+          href: project_new_merge_request_path(project)
+        )
+      end
+
+      it 'has a "New snippet" link' do
+        render
+
+        expect(rendered).to have_link(
+          'New snippet',
+          href: new_project_snippet_path(project)
+        )
+      end
+    end
+
+    context 'as a Project guest' do
+      let(:guest) { create(:user) }
+
+      before do
+        stub_current_user(guest)
+        project.add_guest(guest)
+      end
+
+      it 'has no "New merge request" link' do
+        render
+
+        expect(rendered).not_to have_link('New merge request')
+      end
+
+      it 'has no "New snippet" link' do
+        render
+
+        expect(rendered).not_to have_link(
+          'New snippet',
+          href: new_project_snippet_path(project)
+        )
+      end
+    end
+  end
+
+  context 'global links' do
+    before do
+      stub_current_user(user)
+    end
+
+    it 'has a "New project" link' do
+      render
+
+      expect(rendered).to have_link('New project', href: new_project_path)
+    end
+
+    it 'has a "New group" link' do
+      render
+
+      expect(rendered).to have_link('New group', href: new_group_path)
+    end
+
+    it 'has a "New snippet" link' do
+      render
+
+      expect(rendered).to have_link('New snippet', href: new_snippet_path)
+    end
+  end
+
+  def stub_current_user(current_user)
+    allow(view).to receive(:current_user).and_return(current_user)
+  end
+end