Revision control
++ <?xml version="1.0" encoding="UTF-8"?><!-- check that the required fields are present in both internal and external events --><scxml xmlns="http://www.w3.org/2005/07/scxml" xmlns:conf="http://www.w3.org/2005/scxml-conformance" version="1.0" initial="s0" datamodel="ecmascript" name="machineName">
++
++ <state id="s0">
++ <onentry>
++ <raise event="foo"/>
++ </onentry>
++ <transition event="foo" cond="'name' in _event && 'type' in _event && 'sendid' in _event && 'origin' in _event && 'invokeid' && 'data' in _event" target="s1"/>
++ <transition event="*" target="fail"/>
++ </state>
++
++ <state id="s1">
++ <onentry>
++ <send event="foo"/>
++ </onentry>
++ <transition event="foo" cond="'name' in _event && 'type' in _event && 'sendid' in _event && 'origin' in _event && 'invokeid' && 'data' in _event" target="pass"/>
++ <transition event="*" target="fail"/>
++ </state>
++
++
++ <final xmlns="http://www.w3.org/2005/07/scxml" id="pass"><onentry><log label="Outcome" expr="'pass'"/></onentry></final>
++ <final xmlns="http://www.w3.org/2005/07/scxml" id="fail"><onentry><log label="Outcome" expr="'fail'"/></onentry></final>
++
++ </scxml>