test/w3c/c89/test403b.scxml


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<?xml version="1.0" encoding="UTF-8"?>
<!-- we test that 'optimally enabled set' really is a set, specifically that if a transition is optimally enabled in
two different states, it is taken only once.  -->
<scxml xmlns="http://www.w3.org/2005/07/scxml" xmlns:conf="http://www.w3.org/2005/scxml-conformance" initial="s0" version="1.0" datamodel="c89">
  <datamodel>
    <data id="Var1" expr="0"/>
  </datamodel>
  <state id="s0" initial="p0">
    <!-- this transition should never be taken because a transition in a lower state should
  always be selected -->
    <transition event="event1">
      <assign location="Var1" expr="Var1 + 1"/>
    </transition>
    <parallel id="p0">
      <onentry>
        <raise event="event1"/>
        <raise event="event2"/>
      </onentry>
      <!-- this transition will be selected by both states p0s1 and p0s2, but should be executed only once -->
      <transition event="event1">
        <assign location="Var1" expr="Var1 + 1"/>
      </transition>
      <state id="p0s1">
        <transition event="event2" cond="Var1==1" target="pass"/>
        <transition event="event2" target="fail"/>
      </state>
      <state id="p0s2"/>
    </parallel>
  </state>
  <final id="pass">
    <onentry>
      <log label="Outcome" expr="&amp;pass&amp;"/>
    </onentry>
  </final>
  <final id="fail">
    <onentry>
      <log label="Outcome" expr="&amp;pass&amp;"/>
    </onentry>
  </final>
</scxml>