listOf(
InvoiceItem.newInvoiceItem(null, null, null, null)
,InvoiceItem.newInvoiceItem(inv456, null, null, null)
,InvoiceItem.newInvoiceItem(inv456, null, null, null)
,InvoiceItem.newInvoiceItem(inv123, null, null, null)
InvoiceItem.newInvoiceItem(inv123, null, null, null)
,InvoiceItem.newInvoiceItem(inv123, "A", null, null)
,InvoiceItem.newInvoiceItem(inv123, "A", null, null)
,InvoiceItem.newInvoiceItem(inv123, "B", null, null)
InvoiceItem.newInvoiceItem(inv123, "A", new Integer(1), null)
,InvoiceItem.newInvoiceItem(inv123, "A", new Integer(2), null)
,InvoiceItem.newInvoiceItem(inv123, "A", new Integer(2), null)
,InvoiceItem.newInvoiceItem(inv123, "A", null, null)
InvoiceItem.newInvoiceItem(inv123, "A", new Integer(1), true)
,InvoiceItem.newInvoiceItem(inv123, "A", new Integer(1), false)
,InvoiceItem.newInvoiceItem(inv123, "A", new Integer(1), false)
,InvoiceItem.newInvoiceItem(inv123, "A", new Integer(1), null)