public function testSetLimit()
{
$this->subject = new Filter();
$this->assertSame(null, $this->subject->getLimit(), 'init limit should ne null');
$this->subject->setLimit(10);
$this->assertSame(10, $this->subject->getLimit(), 'set limit correctly');
$this->subject->setLimit('string value');
$this->assertSame(0, $this->subject->getLimit(), 'every value is converted to int values');
}
