fix testing against cryptography main branch and improve twisted (#1209)

* fix testing against cryptography main branch and improve twisted

* oops

.github/workflows/ci.yml

@@ -41,7 +41,7 @@ jobs:
           # Random order
           - {VERSION: "3.9", TOXENV: "py39-randomorder"}
           # Downstreams
-          - {VERSION: "3.7", TOXENV: "py37-twistedTrunk"}
+          - {VERSION: "3.11", TOXENV: "py311-twistedTrunk"}
           # Meta
           - {VERSION: "3.9", TOXENV: "check-manifest"}
           - {VERSION: "3.9", TOXENV: "flake8"}

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{py,py3,36,37,38,39,310,311}{,-cryptographyMain,-cryptographyMinimum}{,-useWheel}{,-randomorder},py37-twistedTrunk,check-manifest,flake8,py311-mypy,docs,coverage-report
+envlist = py{py,py3,36,37,38,39,310,311}{,-cryptographyMinimum}{,-useWheel}{,-randomorder},py311-twistedTrunk,check-manifest,flake8,py311-mypy,docs,coverage-report
 
 [testenv]
 allowlist_externals =
@@ -18,7 +18,6 @@ extras =
     test
 deps =
     coverage>=4.2
-    cryptographyMain: git+https://github.com/pyca/cryptography.git
     cryptographyMinimum: cryptography==38.0.0
     randomorder: pytest-randomly
 setenv =
@@ -28,17 +27,17 @@ setenv =
     PIP_NO_BINARY=cryptography
     useWheel: PIP_NO_BINARY=
 commands =
+    cryptographyMain: pip install -U git+https://github.com/pyca/cryptography.git
     openssl version
     coverage run --parallel -m OpenSSL.debug
     coverage run --parallel -m pytest -v {posargs}
 
-[testenv:py37-twistedTrunk]
+[testenv:py311-twistedTrunk]
 deps =
     Twisted[all_non_platform] @ git+https://github.com/twisted/twisted
 setenv =
 commands =
-    python -c "import OpenSSL.SSL; print(OpenSSL.SSL.SSLeay_version(OpenSSL.SSL.SSLEAY_VERSION))"
-    python -c "import cryptography; print(cryptography.__version__)"
+    python -m OpenSSL.debug
     python -m twisted.trial -j4 --reporter=text twisted
 
 [testenv:flake8]