public function testCreatePostSetTagValuesAsArray()
 {
     $post = new Post();
     $post->attachBehavior('target-tags', ['class' => Target::className(), 'targetAttribute' => 'tagNames', 'beforeLink' => function ($tag) {
         /** @var Tag $tag */
         $tag->frequency++;
     }, 'afterUnlink' => function ($tag) {
         /** @var Tag $tag */
         $tag->frequency--;
         if ($tag->frequency == 0) {
             $tag->delete();
         } else {
             $tag->update(false);
         }
     }]);
     $post->title = 'New post title';
     $post->body = 'New post body';
     $post->tagNames = ['tag 4', 'tag 5', '', 'tag 6'];
     $this->assertTrue($post->save());
     $dataSet = $this->getConnection()->createDataSet(['post', 'tag', 'post_tag']);
     $expectedDataSet = $this->createFlatXMLDataSet(__DIR__ . '/data/test-create-post-set-tag-values.xml');
     $this->assertDataSetsEqual($expectedDataSet, $dataSet);
 }