function testVerifyInvalidSignatureTest123() { $postData = $this->schemaNotification('transaction_notification.json'); $postData['unique_id'] = '130319cfb3bf65ff3c4a4045487b173e'; $postData['signature'] = 'wrongabed996788efcc049567809484454ee8b17'; $tn = new TransactionNotification($postData); $apiPassword = '******'; $tn->verify($apiPassword); $this->assertFalse($tn->isVerified()); }