testInvoicePerShipment is broken

List invoices = testInvoicePerShipment("GZ-1000", "N") 

assert ServiceUtil.isSuccess(serviceResult) | | false ['shipmentId':'EMPTY', 'errorMessage':'No items currently set to be shipped. Cannot complete!', 'responseMessage':'error']

Assertion failed: 

assert ServiceUtil.isSuccess(serviceResult)
| |
false ['shipmentId':'EMPTY', 'errorMessage':'No items currently set to be shipped. Cannot complete!', 'responseMessage':'error']

at org.codehaus.groovy.runtime.InvokerHelper.assertFailed(InvokerHelper.java:415)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.assertFailed(ScriptBytecodeAdapter.java:670)
at org.apache.ofbiz.accounting.InvoicePerShipmentTests.testInvoicePerShipment(InvoicePerShipmentTests.groovy:137)
at org.apache.ofbiz.accounting.InvoicePerShipmentTests.testInvoicePerShipmentSetFalse(InvoicePerShipmentTests.groovy:154)
at org.apache.ofbiz.testtools.TestRunContainer.start(TestRunContainer.java:90)
at org.apache.ofbiz.base.container.ContainerLoader.startLoadedContainers(ContainerLoader.java:153)
at org.apache.ofbiz.base.container.ContainerLoader.load(ContainerLoader.java:77)
at org.apache.ofbiz.base.start.StartupControlPanel.loadContainers(StartupControlPanel.java:146)
at org.apache.ofbiz.base.start.StartupControlPanel.start(StartupControlPanel.java:70)
at org.apache.ofbiz.base.start.Start.main(Start.java:89)