workflow_test: mock date globally for skip time action (#88412)

debian/control

@@ -23,6 +23,7 @@ Depends: graphviz,
          python3-django-ratelimit,
          python3-dnspython,
          python3-emoji,
+         python3-freezegun,
          python3-hobo,
          python3-lasso,
          python3-lxml,

setup.py

@@ -205,6 +205,7 @@ setup(
         'phonenumbers',
         'emoji',
         'psutil',
+        'freezegun',
     ],
     package_dir={'wcs': 'wcs'},
     packages=find_packages(),

tests/test_workflow_tests.py

@@ -458,7 +458,6 @@ def test_workflow_tests_automatic_jump_condition(pub):
     assert str(excinfo.value) == 'Form should be in status "Frog status" but is in status "Bear status".'
 
 
-@pytest.mark.freeze_time('2024-02-19 12:00')
 def test_workflow_tests_automatic_jump_timeout(pub):
     user = pub.user_class(name='test user')
     user.store()

wcs/workflow_tests.py

@@ -17,6 +17,8 @@
 import datetime
 import uuid
 
+import freezegun
+from django.utils.timezone import localtime
 from quixote import get_publisher, get_session
 
 from wcs import wf
@@ -90,9 +92,13 @@ class WorkflowTests(XmlStorableObject):
         # mark formdata as running workflow tests
         formdata.workflow_test = True
 
-        formdata.frozen_receipt_time = formdata.receipt_time
         self.reset_formdata_test_attributes(formdata)
 
+        with freezegun.freeze_time(formdata.receipt_time) as frozen_datetime:
+            formdata.frozen_datetime = frozen_datetime
+            self._run(formdata)
+
+    def _run(self, formdata):
         formdata.perform_workflow()
         for action in self.actions:
             status = formdata.get_status()
@@ -542,15 +548,8 @@ class SkipTime(WorkflowTestAction):
         if previous_trace:
             self.seconds = (trace.timestamp - previous_trace.timestamp).total_seconds()
 
-    def rewind(self, formdata):
-        def rewind_time(timestamp):
-            return timestamp - datetime.timedelta(seconds=self.seconds)
-
-        formdata.receipt_time = rewind_time(formdata.receipt_time)
-        formdata.evolution[-1].time = rewind_time(formdata.evolution[-1].time)
-
     def perform(self, formdata):
-        self.rewind(formdata)
+        formdata.frozen_datetime.tick(self.seconds)
 
         jump_actions = []
         status = formdata.get_status()
@@ -560,7 +559,7 @@ class SkipTime(WorkflowTestAction):
 
         delay = wf.jump.get_min_jumps_delay(jump_actions)
 
-        if formdata.last_update_time > formdata.frozen_receipt_time - datetime.timedelta(seconds=delay):
+        if formdata.last_update_time > localtime() - datetime.timedelta(seconds=delay):
             return
 
         for jump_action in jump_actions: