fix: extend wait timeout for test_delete_user()

Have been seeing intermittent failures of the test_delete_user()
functional test. Have made the following changes to hopefully resolve
the issue and if it still fails to know better why the failure
occurred.

*  Extend the wait timeout for test_delete_user() from 30 to 60
   tries of 0.5 seconds each.

*  Modify wait_for_sidekiq() to return True if sidekiq process
   terminated. Return False if the timeout expired.

*  Modify wait_for_sidekiq() to loop through all processes instead of
   assuming there is only one process. If all processes are not busy
   then return.

*  Modify wait_for_sidekiq() to sleep at least once before checking
   for processes being busy.

*  Check for True being returned in test_delete_user() call to
   wait_for_sidekiq()

tools/functional/api/test_users.py

@@ -56,7 +56,8 @@ def test_delete_user(gl, wait_for_sidekiq):
     )
 
     new_user.delete()
-    wait_for_sidekiq()
+    result = wait_for_sidekiq(timeout=60)
+    assert result == True, "sidekiq process should have terminated but did not"
 
     assert new_user.id not in [user.id for user in gl.users.list()]
 

tools/functional/conftest.py

@@ -89,9 +89,15 @@ def wait_for_sidekiq(gl):
 
     def _wait(timeout=30, step=0.5):
         for _ in range(timeout):
-            if not gl.sidekiq.process_metrics()["processes"][0]["busy"]:
-                return
             time.sleep(step)
+            busy = False
+            processes = gl.sidekiq.process_metrics()["processes"]
+            for process in processes:
+                if process["busy"]:
+                    busy = True
+            if not busy:
+                return True
+        return False
 
     return _wait