software/erp5/test: test clean shutdown WIP 🚧

testing strategy:
 - use an external method with a transaction manager which sleeps
  for 20 seconds during tpc_vote and tpc_commit
 - commit such a transaction
 - stop zope
 - check the stop happens after the tpc_commit

software/erp5/test/test/test_erp5.py

@@ -1128,6 +1128,51 @@ class TestZopeWSGI(ZopeTestMixin, ERP5InstanceTestCase):
   pass
 
 
+
+if 0:
+  class TestZopeShutdown(ZopeSkinsMixin):
+    __partition_reference__ = 's'
+
+    @classmethod
+    def _setUpClass(cls):
+      super()._setUpClass()
+      cls.zope_base_url = cls._getAuthenticatedZopeUrl('')
+      param_dict = cls.getRootPartitionConnectionParameterDict()
+
+      # a python script to schedule activities
+      cls._addPythonScript(
+          script_id='ERP5Site_runActivityLoop',
+          params='mode,i=0',
+          body='''if 1:
+            import json
+            from time import sleep
+            portal = context.getPortalObject()
+            if mode == "run":
+              sleep(1)
+              portal.log("ERP5Site_runActivityLoop (loop %s)" % i)
+              return
+            if mode == "activate":
+              activate_kw = {"activity": "SQLQueue"}
+              previous_tag = None
+              for i in range(100):
+                if previous_tag:
+                  activate_kw["after_tag"] = previous_tag
+                activate_kw["tag"] = "tag-%s" % i
+                portal.portal_templates.activate(**activate_kw).ERP5Site_runActivityLoop(mode="run", i=i)
+                previous_tag = tag
+              return "activated"
+            raise ValueError("Unknown mode: %s" % mode)
+          ''',
+      )
+      cls.zope_verify_activity_processing_url = urllib.parse.urljoin(
+          cls.zope_base_url,
+          'ERP5Site_runActivityLoop',
+      )
+
+    def test_shutdown(self):
+      breakpoint()
+
+
 class TestZopePublisherTimeout(ZopeSkinsMixin, ERP5InstanceTestCase):
   __partition_reference__ = 't'