CI fix

Author: cretz

README.md

@@ -733,8 +733,7 @@ This internally downloads the Temporal time-skipping test server to a temporary
 then starts the test server which has special APIs for skipping time.
 
 **NOTE:** The time-skipping test environment does not work on ARM. The SDK will try to download the x64 binary on macOS
-for use with the Intel emulator, but for Linux or Windows ARM there will be no proper time-skipping test server at this
-time.
+for use with the Intel emulator, but for Linux or Windows ARM there is no proper time-skipping test server at this time.
 
 ##### Automatic Time Skipping
 

tests/test_client.py

@@ -910,10 +910,7 @@ async def test_schedule_backfill(
         pytest.skip("Java test server doesn't support schedules")
     await assert_no_schedules(client)
 
-    # Just in case it's on the minute boundary, move it off
-    now = datetime.utcnow()
-    if now.second == 0:
-        now += timedelta(seconds=1)
+    begin = datetime(year=2020, month=1, day=20, hour=5)
 
     # Create paused schedule that runs every minute and has two backfills
     handle = await client.create_schedule(
@@ -934,8 +931,8 @@ async def test_schedule_backfill(
         ),
         backfill=[
             ScheduleBackfill(
-                start_at=now - timedelta(minutes=30),
-                end_at=now - timedelta(minutes=29),
+                start_at=begin - timedelta(minutes=30),
+                end_at=begin - timedelta(minutes=29),
                 overlap=ScheduleOverlapPolicy.ALLOW_ALL,
             )
         ],
@@ -945,13 +942,13 @@ async def test_schedule_backfill(
     # Add two more backfills and and -2m will be deduped
     await handle.backfill(
         ScheduleBackfill(
-            start_at=now - timedelta(minutes=4),
-            end_at=now - timedelta(minutes=2),
+            start_at=begin - timedelta(minutes=4),
+            end_at=begin - timedelta(minutes=2),
             overlap=ScheduleOverlapPolicy.ALLOW_ALL,
         ),
         ScheduleBackfill(
-            start_at=now - timedelta(minutes=2),
-            end_at=now,
+            start_at=begin - timedelta(minutes=2),
+            end_at=begin,
             overlap=ScheduleOverlapPolicy.ALLOW_ALL,
         ),
     )

tests/testing/test_workflow.py

@@ -132,8 +132,7 @@ async def test_workflow_env_time_skipping_heartbeat_timeout():
             # Check the causes until heartbeat timeout
             assert isinstance(err.value.cause, ActivityError)
             assert isinstance(err.value.cause.cause, TimeoutError)
-            assert isinstance(err.value.cause.cause.cause, TimeoutError)
-            assert err.value.cause.cause.cause.type == TimeoutType.HEARTBEAT
+            assert err.value.cause.cause.type == TimeoutType.HEARTBEAT
 
 
 @workflow.defn