test(huey): break out preparing the environment vars

I did it for testing redis socketing too, but I guess this will wait for
another time. Somehow it worked even without an actual redis socket and it was
creepy. Idk yet how one can best make redis to make sockets at arbitrary
temporary dirs without starting another redis.

tests/test_huey.py

@@ -1,11 +1,9 @@
 import pytest
 
 from subprocess import Popen
-from os import environ
+from os import environ, path
 
-
-# from selfprivacy_api.backup.util import output_yielder
-from selfprivacy_api.utils.huey import huey
+from selfprivacy_api.utils.huey import huey, immediate
 
 
 @huey.task()
@@ -14,28 +12,37 @@ def sum(a: int, b: int) -> int:
 
 
 @pytest.fixture()
-def huey_queues():
-    """
-    Full, not-immediate, queued huey, with consumer starting and stopping.
-    IMPORTANT: Assumes tests are run from the project directory.
-    The above is needed by consumer to find our huey setup.
-    """
+def not_immediate():
     old_immediate = huey.immediate
-
     environ["HUEY_QUEUES_FOR_TESTS"] = "Yes"
-    command = ["huey_consumer.py", "selfprivacy_api.task_registry.huey"]
     huey.immediate = False
     assert huey.immediate is False
-    consumer_handle = Popen(command)
 
-    yield huey
+    yield
 
-    consumer_handle.terminate()
     del environ["HUEY_QUEUES_FOR_TESTS"]
     huey.immediate = old_immediate
     assert huey.immediate == old_immediate
 
 
+@pytest.fixture()
+def huey_queues(not_immediate):
+    """
+    Full, not-immediate, queued huey, with consumer starting and stopping.
+    IMPORTANT: Assumes tests are run from the project directory.
+    The above is needed by consumer to find our huey setup.
+    """
+    command = ["huey_consumer.py", "selfprivacy_api.task_registry.huey"]
+    consumer_handle = Popen(command)
+
+    yield huey
+
+    consumer_handle.terminate()
+
+
 def test_huey(huey_queues):
+    assert huey.immediate is False
+    assert immediate() is False
+
     result = sum(2, 5)
     assert result(blocking=True) == 7