/**
  * Tests is_theme_active.
  *
  * @covers CustomizeSnapshots\Customize_Snapshot_Manager::is_theme_active()
  */
 public function test_is_theme_active()
 {
     global $wp_customize;
     $wp_customize = null;
     // WPCS: global override ok.
     $manager = new Customize_Snapshot_Manager($this->plugin);
     $this->assertTrue($manager->is_theme_active());
     $manager->ensure_customize_manager();
     $this->assertTrue($manager->is_theme_active());
 }