Braintree\TransactionSearch::failedAt PHP Method

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

 public function test_rangeNode_failedAt()
 {
     $transaction = Braintree\Transaction::sale(['amount' => '3000.00', 'creditCard' => ['number' => '4111111111111111', 'expirationDate' => '05/12']])->transaction;
     $twenty_min_ago = date_create("now -20 minutes", new DateTimeZone("UTC"));
     $ten_min_ago = date_create("now -10 minutes", new DateTimeZone("UTC"));
     $ten_min_from_now = date_create("now +10 minutes", new DateTimeZone("UTC"));
     $collection = Braintree\Transaction::search([Braintree\TransactionSearch::id()->is($transaction->id), Braintree\TransactionSearch::failedAt()->between($twenty_min_ago, $ten_min_ago)]);
     $this->assertEquals(0, $collection->maximumCount());
     $collection = Braintree\Transaction::search([Braintree\TransactionSearch::id()->is($transaction->id), Braintree\TransactionSearch::failedAt()->between($ten_min_ago, $ten_min_from_now)]);
     $this->assertEquals(1, $collection->maximumCount());
     $this->assertEquals($transaction->id, $collection->firstItem()->id);
 }