Always run the asgi tests

Since the client now requires a minimum of Python 3.9, we don't need to
have this feature gate in place any more

Signed-off-by: Lexi Robinson <lexi@lexi.org.uk>

Author: Lexicality

tests/test_asgi.py

@@ -1,19 +1,11 @@
+import asyncio
 import gzip
-from unittest import skipUnless, TestCase
+from unittest import TestCase
 
-from prometheus_client import CollectorRegistry, Counter
-from prometheus_client.exposition import CONTENT_TYPE_PLAIN_0_0_4
-
-try:
-    # Python >3.5 only
-    import asyncio
+from asgiref.testing import ApplicationCommunicator
 
-    from asgiref.testing import ApplicationCommunicator
-
-    from prometheus_client import make_asgi_app
-    HAVE_ASYNCIO_AND_ASGI = True
-except ImportError:
-    HAVE_ASYNCIO_AND_ASGI = False
+from prometheus_client import CollectorRegistry, Counter, make_asgi_app
+from prometheus_client.exposition import CONTENT_TYPE_PLAIN_0_0_4
 
 
 def setup_testing_defaults(scope):
@@ -33,7 +25,6 @@ def setup_testing_defaults(scope):
 
 
 class ASGITest(TestCase):
-    @skipUnless(HAVE_ASYNCIO_AND_ASGI, "Don't have asyncio/asgi installed.")
     def setUp(self):
         self.registry = CollectorRegistry()
         self.captured_status = None

tox.ini

@@ -3,6 +3,7 @@ envlist = coverage-clean,py{3.9,3.10,3.11,3.12,3.13,py3.9,3.9-nooptionals},cover
 
 [testenv]
 deps =
+    asgiref
     coverage
     pytest
     pytest-benchmark