Bugfix/raise exception when creating non executable spec

SpiffWorkflow/bpmn/parser/BpmnParser.py

@@ -174,7 +174,7 @@ def get_process_parser(self, process_id):
 
     def get_process_ids(self):
         """Returns a list of process IDs"""
-        return list(self.process_parsers.keys())
+        return list(proc_id for proc_id, parser in self.process_parsers.items() if parser.process_executable)
 
     def add_bpmn_file(self, filename):
         """
@@ -344,8 +344,8 @@ def find_all_specs(self):
         # This is a little convoluted, but we might add more processes as we generate
         # the dictionary if something refers to another subprocess that we haven't seen.
         processes = dict((id, self.get_spec(id)) for id in self.get_process_ids())
-        while sorted(processes.keys()) != sorted(self.process_parsers.keys()):
-            for process_id in tuple(self.process_parsers.keys()):
+        while sorted(processes.keys()) != sorted(self.get_process_ids()):
+            for process_id in self.get_process_ids():
                 processes[process_id] = self.get_spec(process_id)
         return processes
 

SpiffWorkflow/bpmn/parser/ProcessParser.py

@@ -46,7 +46,7 @@ def __init__(self, p, node, nsmap, data_stores, filename=None, lane=None):
         self.parser = p
         self.lane = lane
         self.spec = None
-        self.process_executable = self.is_executable()
+        self.process_executable = node.get('isExecutable', 'true') == 'true'
         self.data_stores = data_stores
         self.inherited_data_objects = {}
 
@@ -64,9 +64,6 @@ def has_lanes(self) -> bool:
                 return True
         return False
 
-    def is_executable(self) -> bool:
-        return self.node.get('isExecutable', 'true') == 'true'
-
     def start_messages(self):
         """ This returns a list of message names that would cause this
             process to start. """
@@ -117,6 +114,8 @@ def _parse(self):
         start_node_list = self.xpath('./bpmn:startEvent')
         if not start_node_list and self.process_executable:
             raise ValidationException("No start event found", node=self.node, file_name=self.filename)
+        if not self.process_executable:
+            raise ValidationException(f"Process {self.bpmn_id} is not executable.", node=self.node, file_name=self.filename)
         self.spec = BpmnProcessSpec(name=self.bpmn_id, description=self.get_name(), filename=self.filename)
 
         self.spec.data_objects.update(self.inherited_data_objects)

tests/SpiffWorkflow/bpmn/ParserTest.py

@@ -59,3 +59,11 @@ def testBoundaryEvent(self):
         self.assertIn(split_task, gw1.outputs)
         self.assertNotIn(task, gw2.outputs)
         self.assertIn(split_task, gw2.outputs)
+
+    def testNonExecutableProcessRaisesException(self):
+        bpmn_file = os.path.join(os.path.dirname(__file__), 'data/Invalid-Workflows', 'non-executable-process.bpmn')
+        self.parser.add_bpmn_file(bpmn_file)
+        self.assertRaisesRegex(
+            ValidationException, "Process \w+ is not executable.",
+            self.parser.get_spec, 'Process_14di7kj'
+        )