fix tests

pytest_asyncio/plugin.py

@@ -68,12 +68,6 @@ def pytest_fixture_setup(fixturedef, request):
         fixturedef.addfinalizer(lambda: policy.set_event_loop(old_loop))
         return
 
-    if 'context' in request.fixturenames:
-        if fixturedef.argname != 'context' and fixturedef.scope == 'function':
-            context = request.getfixturevalue('context')
-    else:
-        context = None
-
     if isasyncgenfunction(fixturedef.func):
         # This is an async generator function. Wrap it accordingly.
         generator = fixturedef.func
@@ -204,12 +198,12 @@ def __init__(self, coro, *, loop=None, name=None, context=None):
 
 
 @pytest.fixture
-def context(request):
+def context(event_loop, request):
     """Create an empty context for the async test case and it's async fixtures."""
     context = Context()
     def taskfactory(loop, coro):
         return Task(coro, loop=loop, context=context)
-    asyncio.get_event_loop().set_task_factory(taskfactory)
+    event_loop.set_task_factory(taskfactory)
     return context
 
 

tests/test_contextvars.py

@@ -0,0 +1,21 @@
+"""Quick'n'dirty unit tests for provided fixtures and markers."""
+import asyncio
+import pytest
+
+import pytest_asyncio.plugin
+
+from contextvars import ContextVar
+
+
+ctxvar = ContextVar('ctxvar')
+
+
+@pytest.fixture
+async def set_some_context(context):
+    ctxvar.set('quarantine is fun')
+
+
+@pytest.mark.asyncio
+async def test_test(set_some_context):
+    # print ("Context in test:", list(context.items()))
+    assert ctxvar.get() == 'quarantine is fun'