/**
  * @test
  * it should configure the admin bar
  */
 public function it_should_configure_the_admin_bar()
 {
     $constants = new Constants(true);
     $configurator = $this->prophesize('Tribe__Events__Admin__Bar__Configurator_Interface');
     $admin_bar = $this->getMockBuilder('WP_Admin_Bar')->disableOriginalConstructor()->getMock();
     $configurator->configure($admin_bar)->willReturn(true);
     $sut = new Admin_Bar($configurator->reveal(), $constants);
     $sut->init($admin_bar);
     $configurator->configure($admin_bar)->shouldHaveBeenCalled();
 }
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 /**
  * Singleton constructor for the class.
  *
  * @return Tribe__Events__Admin__Bar__Admin_Bar
  */
 public static function instance()
 {
     if (empty(self::$instance)) {
         self::$instance = new self();
     }
     return self::$instance;
 }
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 /**
  * Add the buttons/dropdown to the admin toolbar
  *
  * @return null
  */
 public function add_toolbar_items()
 {
     $admin_bar = Tribe__Events__Admin__Bar__Admin_Bar::instance();
     if (!$admin_bar->is_enabled()) {
         return;
     }
     global $wp_admin_bar;
     $admin_bar->init($wp_admin_bar);
 }