Hello

I'm trying to create a Web Service and it's test class in order to upsert Accounts from another system.

I'm encoutering a problem when trying to generate exception : my test class will fail and complete with errors :

Here is my Web Service Class :

global class ReceiveAccountWS {

    // Receive Account Web Service
    // Receives an Account and upsert it based on External ID : CIEID__c

    webService static Id UpdateAccount(String extID, Account acc) {

        Account a = new Account();
	system.debug('*** Debug acc: ' + acc);
	a = acc;
	system.debug('*** Debug a : ' + a);
        a.CIEID__c = '' + extID;
        try {
            upsert a CIEID__c;
            system.debug('*** Debug upsert OK : ' + a);
            return a.id;
        } catch (StringException s) {
            System.debug('*** Debug Error String : ' + s.getMessage());
	    string Ers = s.getMessage();
	    throw s;
	    return Ers;
        } catch (DmlException d) {
	    System.debug('*** Debug Error DML : ' + d.getMessage());
	    string Erd = d.getMessage();
	    return Erd;
        } catch (Exception e) {
	    System.debug('*** Debug Error Exception: ' + e.getMessage());
	    string Ere = e.getMessage();
	    return Ere;
        }
    }
}

And here is my Test Class : for acc2, the Account name is intentionaly left blank :

public class Z_TestReceiveAccountWS {

    static testMethod void TestReceiveAccountWS() {
        Account acc 			= new Account();
	Account acc2			= new Account();
	acc.Name			= 'TEST Account';
	String MyID			= '007';
	String MyID2			= '008';

	ReceiveAccountWS.UpdateAccount(MyID, acc);
	ReceiveAccountWS.UpdateAccount(MyID2, acc2);
    }
}

The test result is the following :

System.StringException: Invalid id: Upsert failed. First exception on row 0; first error: REQUIRED_FIELD_MISSING, Required fields are missing: [Name]: [Name]

Class.ReceiveAccountWS: line 8, column 23 Class.Z_TestReceiveAccountWS.TestReceiveAccountWS: line 11, column 3 External entry point

How may I avoid to receive such an exception that I thought I had catched ??

Any help is appreciated.

Thank you

Dimitri