spec/helpers/tab_helper_spec.rb


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require 'spec_helper'

describe TabHelper do
  include ApplicationHelper

  describe 'nav_link' do
    before do
      allow(controller).to receive(:controller_name).and_return('foo')
      allow(self).to receive(:action_name).and_return('foo')
    end

    it "captures block output" do
      expect(nav_link { "Testing Blocks" }).to match(/Testing Blocks/)
    end

    it "performs checks on the current controller" do
      expect(nav_link(controller: :foo)).to match(/<li class="active">/)
      expect(nav_link(controller: :bar)).not_to match(/active/)
      expect(nav_link(controller: [:foo, :bar])).to match(/active/)
    end

    it "performs checks on the current action" do
      expect(nav_link(action: :foo)).to match(/<li class="active">/)
      expect(nav_link(action: :bar)).not_to match(/active/)
      expect(nav_link(action: [:foo, :bar])).to match(/active/)
    end

    it "performs checks on both controller and action when both are present" do
      expect(nav_link(controller: :bar, action: :foo)).not_to match(/active/)
      expect(nav_link(controller: :foo, action: :bar)).not_to match(/active/)
      expect(nav_link(controller: :foo, action: :foo)).to match(/active/)
    end

    it "accepts a path shorthand" do
      expect(nav_link(path: 'foo#bar')).not_to match(/active/)
      expect(nav_link(path: 'foo#foo')).to match(/active/)
    end

    it "passes extra html options to the list element" do
      expect(nav_link(action: :foo, html_options: { class: 'home' })).to match(/<li class="home active">/)
      expect(nav_link(html_options: { class: 'active' })).to match(/<li class="active">/)
    end
  end
end