/**
  * Test customize preview init.
  *
  * @see Customize_Snapshot_Manager::customize_preview_init()
  */
 function test_customize_preview_init()
 {
     $manager = new Customize_Snapshot_Manager($this->plugin);
     $this->assertFalse(has_action('wp_enqueue_scripts', array($manager, 'enqueue_preview_scripts')));
     $manager->customize_preview_init();
     $this->assertEquals(10, has_action('wp_enqueue_scripts', array($manager, 'enqueue_preview_scripts')));
 }