dev-python/tornado: add test suite tweaks

- Skip tests marked as skipOnTravis (timing sensitive)
- Explicitly set NO_NETWORK too to avoid network tests
- Don't treat DeprecationWarning as fatal for tests (grabbed from Fedora)

Signed-off-by: Sam James <sam@gentoo.org>

dev-python/tornado/files/tornado-6.3.2-ignore-deprecationwarning.patch

@@ -0,0 +1,12 @@
+https://src.fedoraproject.org/rpms/python-tornado/raw/rawhide/f/Do-not-turn-DeprecationWarning-into-Exception.patch
+--- a/tornado/test/runtests.py
++++ b/tornado/test/runtests.py
+@@ -126,7 +126,6 @@
+     # Tornado generally shouldn't use anything deprecated, but some of
+     # our dependencies do (last match wins).
+     warnings.filterwarnings("ignore", category=DeprecationWarning)
+-    warnings.filterwarnings("error", category=DeprecationWarning, module=r"tornado\..*")
+     warnings.filterwarnings("ignore", category=PendingDeprecationWarning)
+     warnings.filterwarnings(
+         "error", category=PendingDeprecationWarning, module=r"tornado\..*"
+

dev-python/tornado/tornado-6.3.2.ebuild

@@ -5,7 +5,7 @@ EAPI=8
 
 DISTUTILS_EXT=1
 DISTUTILS_USE_PEP517=setuptools
-PYTHON_COMPAT=( python3_{9..11} pypy3 )
+PYTHON_COMPAT=( python3_{10..11} pypy3 )
 PYTHON_REQ_USE="threads(+)"
 
 inherit distutils-r1 pypi
@@ -37,6 +37,7 @@ BDEPEND="
 
 PATCHES=(
 	"${FILESDIR}"/${PN}-6.3.2-test-timeout-increase.patch
+	"${FILESDIR}"/${PN}-6.3.2-ignore-deprecationwarning.patch
 )
 
 src_prepare() {
@@ -49,6 +50,11 @@ src_prepare() {
 
 python_test() {
 	local -x ASYNC_TEST_TIMEOUT=60
+	# Avoid time-sensitive tests
+	# https://github.com/tornadoweb/tornado/blob/10974e6ebee80a26a2a65bb9bd715cf858fafde5/tornado/test/util.py#L19
+	local -x TRAVIS=1
+	local -x NO_NETWORK=1
+
 	cd "${T}" || die
 	"${EPYTHON}" -m tornado.test.runtests --verbose ||
 		die "tests failed under ${EPYTHON}"