Inserting an object with not writable field

Question

I've this class that I need to test it:

    public class A800ExpiredClientReportV2 {
        Public ID quotID {get;set;}
        Public  List<Quotation__c> quotList {set;get;}
        Public  List<Call__c> callList {set;get;}
        public A800ExpiredClientReportV2(){
            quotList = [SELECT ID, To__c, Quotation_Total__c, Time_Left__c, Client_Name__c, Client__c, Name, Phone__c, Confirm_Renewal__c FROM Quotation__c WHERE (Expiry_Notification_1__c = true AND Confirm_Renewal__c = false AND Stored_Inventory_Items__c > 0 AND Paid_Invoices__c >0) OR (Expiry_Notification_1__c = true AND Subsequent_Quotation__c != null AND Paid_Invoices__c >0) ORDER BY To__c];
            callList = [SELECT Call_Date__c, Client_Name__c,Phone__c, Response__c, Quotation__c, Quotation_Name__c, Client__c FROM Call__c ORDER BY Client_Name__c ];
        }
     }

My prototype test class is:

@isTest
private class A800ExpiredClientReportV2Test {

static testMethod void myUnitTest() {
    Client__c randomClient = new Client__c(Name__c = 'MAZEN', Phone__c='0000');
    insert randomClient;

    Quotation__c quotation_tst_1 = new Quotation__c(Client__c = randomClient.Id, Duration_Months__c = 1, Expiry_Notification_1__c = true, Confirm_Renewal__c = false, Stored_Inventory_Items__c = 1, Paid_Invoices__c = 1);
    insert quotation_tst_1;

    Test.startTest();
        A800ExpiredClientReportV2 expiredReport = new A800ExpiredClientReportV2();
    Test.stopTest();

    System.assertEquals(quotation_tst_1, expiredReport.quotList[0]);

I've got an error message that told me:
Field is not writeable: Quotation__c.Expiry_Notification_1__c A800ExpiredClientReportV2Test.cls How can I solve this problem?

Answer 1

Non-writeable fields usually are formulas, roll-up summaries or auto-number fields.

For auto-number there isn't much you can do and it doesn't seem to be the case, so I won't talk about them.

For formulas and roll-up summaries, you need to create data so they'll be evaluated correctly.

Ex.: If you have a formula that returns true if the Expiration Date is in the past, you need to create a record with a Expiration Date in the past.

Answer 2

Formula fields are read only and the value cannot be modified.

Quotation__c quotation_tst_1 = new Quotation__c(Client__c = randomClient.Id, Duration_Months__c = 1, **Expiry_Notification_1__c = true**, Confirm_Renewal__c = false, Stored_Inventory_Items__c = 1, Paid_Invoices__c = 1);
    insert quotation_tst_1;

Being a formula field, you need to remove Expiry_Notification_1__c from insert statement.

Expiry_Notification_1__c field will be automatically populated based on its formula. Check the formula for this field and based on the formula provide values for a record.