/**
  * Test is/setter for negativeAllowed property
  *
  * TODO : Test with the both values
  */
 public function testIsSetNegativeAllowed()
 {
     $this->assertNull($this->attribute->isNegativeAllowed());
     // Change value and assert new
     $this->assertEntity($this->attribute->setNegativeAllowed(false));
     $this->assertFalse($this->attribute->isNegativeAllowed());
 }