Code Coverage for IF statement [duplicate]

Question

May I know how I can create a code coverage for if statement code? Here is my if statement code:

    @AuraEnabled
    public static void submitFinalApproval(Id recordId) {

        //1. RS
        if(String.valueOf(recordId).startsWith('a0O')){
            update new Return_Shipment__c(Id = recordId, Final_Approved__c = true); 
        }
        //2. VO__c
        if(String.valueOf(recordId).startsWith('a0G')){
            update new VO__c(Id = recordId, Final_Approved__c = true); 
        }
        //3. RPR__c
        if(String.valueOf(recordId).startsWith('a0A')){
            update new RPR__c(Id = recordId, Final_Approved__c = true); 
        }
}

Answer 1

You can easily make this 100% coverable by changing the code as follows:

@AuraEnabled
public static void submitFinalApproval(Id recordId) {
    sObject record = recordId.getSObjectType().newSobject(recordId);
    record.put('Final_Approved__c',true);
    update record;
}

You can read more about this in the relevant document: Dynamic DML and Dynamic Apex. Writing the unit test for this should be trivial at this point.