dev-python/testtools: extend twisted test dep to py3.13

Some tests need to be addapted for dev-python/twisted-24.3.0_p20240628
snapshot we have in our tree. The patch is backported from upstream.

Signed-off-by: Petr Vaněk <arkamar@gentoo.org>

dev-python/testtools/files/testtools-2.7.2-twisted-fix.patch

@@ -0,0 +1,45 @@
+From 5b8cb6497c7159f593e68de6a13e15f7e78e56e3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20Van=C4=9Bk?= <arkamar@atlas.cz>
+Date: Mon, 1 Jul 2024 10:00:05 +0200
+Subject: [PATCH] Prepare tests for upcoming twisted version
+
+Twisted recently changed behavior of logger on failures [1]. It newly
+logs the `Main loop terminated.` even on exceptions, which breaks two
+test in twistedsupport test suite. This hack attempts to address the
+upcoming issue.
+
+[1] https://github.com/twisted/twisted/pull/12207
+
+Upstream-PR: https://github.com/testing-cabal/testtools/pull/387
+
+diff --git a/testtools/tests/twistedsupport/test_runtest.py b/testtools/tests/twistedsupport/test_runtest.py
+index 4b46cc64..f8faf7c6 100644
+--- a/testtools/tests/twistedsupport/test_runtest.py
++++ b/testtools/tests/twistedsupport/test_runtest.py
+@@ -16,7 +16,6 @@
+     Contains,
+     ContainsAll,
+     ContainsDict,
+-    EndsWith,
+     Equals,
+     Is,
+     KeysEqual,
+@@ -749,7 +748,7 @@ def test_something(self):
+                     test,
+                     {
+                         "traceback": Not(Is(None)),
+-                        "twisted-log": AsText(EndsWith(" foo\n")),
++                        "twisted-log": AsText(Contains(" foo\n")),
+                     },
+                 ),
+                 ("stopTest", test),
+@@ -790,7 +789,8 @@ def test_something(self):
+         result = self.make_result()
+         runner.run(result)
+         self.assertThat(
+-            messages, MatchesListwise([ContainsDict({"message": Equals(("foo",))})])
++            messages[0:1],
++            MatchesListwise([ContainsDict({"message": Equals(("foo",))})]),
+         )
+ 
+     def test_restore_observers(self):

dev-python/testtools/testtools-2.7.2.ebuild

@@ -27,12 +27,14 @@ BDEPEND="
 		>=dev-python/fixtures-2.0.0[${PYTHON_USEDEP}]
 		dev-python/testscenarios[${PYTHON_USEDEP}]
 		dev-python/testresources[${PYTHON_USEDEP}]
-		$(python_gen_cond_dep '
-			dev-python/twisted[${PYTHON_USEDEP}]
-		' 3.{10..12})
+		dev-python/twisted[${PYTHON_USEDEP}]
 	)
 "
 
+PATCHES=(
+	"${FILESDIR}/${PN}-2.7.2-twisted-fix.patch"
+)
+
 distutils_enable_sphinx doc
 
 python_test() {