message: billing - trace to troubleshoot test issues
diff: @@ -147,7 +147,7 @@ class TestData {
  if (expectedInvoiceStatus !== BillingInvoiceStatus.DRAFT) {
  assert(billingDataStop?.invoiceNumber, 'Invoice Number should be set');
  } else {
  - assert(billingDataStop?.invoiceNumber === null, 'Invoice Number should not yet been set');
  + assert(billingDataStop?.invoiceNumber === null, `Invoice Number should not yet been set - Invoice Number is: ${billingDataStop?.invoiceNumber}`);
  }
  }
  