public function testExpired() { $collection = Braintree\CreditCard::expired(); $this->assertTrue($collection->maximumCount() > 1); $arr = array(); foreach ($collection as $creditCard) { $this->assertTrue($creditCard->isExpired()); array_push($arr, $creditCard->token); } $uniqueCreditCardTokens = array_unique(array_values($arr)); $this->assertEquals($collection->maximumCount(), count($uniqueCreditCardTokens)); }