test: make sure sub-process-blank-start-event also applies to an ad…

…-hoc sub-process

test/rules/sub-process-blank-start-event.mjs

@@ -36,6 +36,14 @@ RuleTester.verify('sub-process-blank-start-event', rule, {
         message: 'Start event must be blank',
         path: [ 'eventDefinitions' ]
       }
+    },
+    {
+      moddleElement: readModdle(__dirname + '/sub-process-blank-start-event/invalid-ad-hoc.bpmn'),
+      report: {
+        id: 'StartEvent',
+        message: 'Start event must be blank',
+        path: [ 'eventDefinitions' ]
+      }
     }
   ]
 });

test/rules/sub-process-blank-start-event/invalid-ad-hoc.bpmn

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<bpmn:definitions xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" id="Definitions_1ntx4rf" targetNamespace="http://bpmn.io/schema/bpmn" exporter="Camunda Modeler" exporterVersion="1.16.2">
+  <bpmn:process id="Process_1" isExecutable="true">
+    <bpmn:adHocSubProcess id="SubProcess_0zz45ap">
+      <bpmn:startEvent id="StartEvent">
+        <bpmn:messageEventDefinition />
+      </bpmn:startEvent>
+    </bpmn:adHocSubProcess>
+  </bpmn:process>
+  <bpmndi:BPMNDiagram id="BPMNDiagram_1">
+    <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="Process_1">
+      <bpmndi:BPMNShape id="SubProcess_0zz45ap_di" bpmnElement="SubProcess_0zz45ap" isExpanded="true">
+        <dc:Bounds x="112" y="65" width="350" height="200" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="StartEvent_13o4awz_di" bpmnElement="StartEvent">
+        <dc:Bounds x="185" y="116" width="36" height="36" />
+      </bpmndi:BPMNShape>
+    </bpmndi:BPMNPlane>
+  </bpmndi:BPMNDiagram>
+</bpmn:definitions>