Braintree\TransactionSearch::disputeDate PHP Method

    public static function disputeDate()
    {
        return new RangeNode("disputeDate");
    }

 public function test_rangeNode_disputeDate_is()
 {
     $knownId = "disputedtransaction";
     $now = new DateTime("2014-03-01");
     $past = clone $now;
     $past->modify("-1 day");
     $future = clone $now;
     $future->modify("+1 day");
     $future2 = clone $now;
     $future2->modify("+2 days");
     $collection = Braintree\Transaction::search([Braintree\TransactionSearch::id()->is($knownId), Braintree\TransactionSearch::disputeDate()->is($past)]);
     $this->assertEquals(0, $collection->maximumCount());
     $collection = Braintree\Transaction::search([Braintree\TransactionSearch::id()->is($knownId), Braintree\TransactionSearch::disputeDate()->is($now)]);
     $this->assertEquals(1, $collection->maximumCount());
     $this->assertEquals($knownId, $collection->firstItem()->id);
     $collection = Braintree\Transaction::search([Braintree\TransactionSearch::id()->is($knownId), Braintree\TransactionSearch::disputeDate()->is($future)]);
     $this->assertEquals(0, $collection->maximumCount());
 }