APEX Trigger and Test Class to Prevent Account Deletion | #Salesforce Tutorials

Kapil June 14, 2020


In this article you will learn to create a Before Delete Trigger and Test Class to prevent Account deletion based on a field's value condition.

Please follow below code : 

Trigger
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trigger beforeAccDeletion on Account (before delete) {
    for(Account acc : trigger.old){
        if(acc.myField__c != null){
            acc.adderror('Can not delete the Account if myField is available');
        }
    }

}

Test Class
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@isTest
private class beforeAccDeletionTest {
    static testmethod void testAccDelete(){
        Account acc = new Account();
        acc.Name='Acc1';
        acc.myField__c='AnyValue';
        insert acc;
        try{
            delete acc;
        }catch(DMLexception e){
            system.assert(e.getMessage().contains('Can not delete the Account if myField is available'),'Can not delete the Account if myField is available');                       
        }
    }
}

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