/**
  * @covers WhereBuilder::separateAttributeFromRelations
  */
 public function testSeparateAttributeFromRelations()
 {
     $b = new WhereBuilder();
     $str = 'my/related/attribute';
     $this->assertEquals(['my/related', 'attribute'], $b->separateAttributeFromRelations($str));
     $str = 'myAttribute';
     $this->assertEquals(['', 'myAttribute'], $b->separateAttributeFromRelations($str));
     $b->setQueryOptionRelationSeparator('@');
     $this->assertEquals(['', $str], $b->separateAttributeFromRelations($str));
 }