tests: Modernize uvloop tests

See-Also: MagicStack/uvloop#521

tox.ini

@@ -2,9 +2,10 @@
 ; py3.7 runs into aiocoap unrelated trouble in setups on Debian sid, leaving
 ; this to `setup.py test` for now
 ;
-; For uvloop not being tested with pyp3, see
-; https://github.com/chrysn/aiocoap/issues/193.
-envlist = {py37,py38,py39,py310,py311,py312,pypy3}-{noextras,allextras},py38-uvloop
+; uvloop is only tested on one recent version; it is not tested on pypy
+; because pypy support for uvloop is currently broken
+; <https://github.com/MagicStack/uvloop/issues/521>
+envlist = {py37,py38,py39,py310,py311,py312,pypy3}-{noextras,allextras},py311-uvloop
 skip_missing_interpreters = true
 
 [testenv]
@@ -33,16 +34,18 @@ extras =
 setenv =
     AIOCOAP_DEFAULTS_EXPECT_ALL=1
 
-[testenv:{py38,pypy3}-uvloop]
+[testenv:py311-uvloop]
 description = Running on uvloop
 deps =
     coverage
+    pytest
     uvloop
 extras =
     all
-; client-/server-transport could just as well be done on the default main loop,
+; client-/server-transport substitute the default udp6 with the non-udp6
+; alternative. that test could just as well be done on the default main loop,
 ; but AFAIR uvloop required occasional workarounds
 setenv =
     AIOCOAP_TESTS_LOOP=uvloop
-    AIOCOAP_CLIENT_TRANSPORT=oscore:simple6
-    AIOCOAP_SERVER_TRANSPORT=oscore:simplesocketserver
+    AIOCOAP_CLIENT_TRANSPORT=oscore:tinydtls:tcpclient:tlsclient:ws:simple6
+    AIOCOAP_SERVER_TRANSPORT=oscore:tinydtls_server:tinydtls:tcpserver:tcpclient:tlsserver:tlsclient:ws:simplesocketserver