function it_adds_an_equal_filter_on_an_field_in_the_query(QueryBuilder $qb, Expr $expr)
 {
     $qb->andWhere("p.release_date > '2014-03-20' AND p.release_date < '2014-03-20 23:59:59'")->willReturn($qb);
     $expr->andX("p.release_date > '2014-03-20'", "p.release_date < '2014-03-20 23:59:59'")->willReturn("p.release_date > '2014-03-20' AND p.release_date < '2014-03-20 23:59:59'");
     $qb->expr()->willReturn($expr);
     $expr->gt('p.release_date', '2014-03-20')->willReturn("p.release_date > '2014-03-20'");
     $expr->lt('p.release_date', '2014-03-20 23:59:59')->willReturn("p.release_date < '2014-03-20 23:59:59'");
     $expr->literal('2014-03-20')->willReturn('2014-03-20');
     $expr->literal('2014-03-20 23:59:59')->willReturn('2014-03-20 23:59:59');
     $this->addFieldFilter('release_date', '=', '2014-03-20');
 }