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I am using below util class to encrypt and decrypt the Salesforce Id.

Apex Class

public class EncryptDecryptUtil
{

    public static string encyptData(String decryptedString)
    {
        Blob data = Blob.valueOf(decryptedString);
        Blob encryptedBlobData = Crypto.encryptWithManagedIV('AES128', encryptionKey , data );
        String base64EncryptedString = EncodingUtil.base64Encode(encryptedBlobData);
        return base64EncryptedString;
    }

    public static string decryptData(String encryptedString)
    {
        Blob data = EncodingUtil.base64Decode(encryptedString);
        Blob decryptedBlobData = Crypto.decryptWithManagedIV('AES128', encryptionKey , data);
        String decryptedString= decryptedBlobData.toString();
        return decryptedString;
    }

}

Test Class:

@isTest
public class HOJ_AppController_Test
{
    public static void prepareSharedTestData()
        {
            //Inserting the custom setting for the encryption 

            Encryption__c privateKeyCustomSetting = new Encryption__c();         
            privateKeyCustomSetting.Name = 'App1';         
            privateKeyCustomSetting.Key__c = '1234567890123456';       
            insert privateKeyCustomSetting;

        Account acc = new Account(Name='Test Acct');
        insert acc ;
      String Encrypt =EncryptDecryptUtil.encyptData(acc.id);
      EncryptDecryptUtil.decryptData(Encrypt );

}

ERROR : While the encrypting the Data In test Class String Encrypt =EncryptDecryptUtil.encyptData(acc.id);

  • Which line is throwing the error? Please edit your post to include that info. – David Cheng Sep 27 '18 at 5:40
  • String Encrypt =EncryptDecryptUtil.encyptData(acc.id); line is throwing the Error ... This is happening in the test class only. When I run the code through Execute anonymous it works fine. – Donald Sep 27 '18 at 11:46
  • 1
    How does the Util class get access to variable encryptionKey ? Do you have it cached somehow and the value supplied by the testmethod (presumably in custom object Encryption__c) Does the testmethod encryption key agree with the structure of the org's value that you used in anonymous apex? – cropredy Sep 30 '18 at 3:42
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I don't know why it's throwing that error there, but you're missing the closing curly bracket on the prepareSharedTestData method. Fix that and it should do the trick.

  • The close bracket should yield a compile-time syntax error, though. I think cropredy's comment is on the money - that key variable is probably null, and its initialization has been elided from the post. – David Reed Oct 1 '18 at 21:19

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