Update the upper bound for Python and Gerrit tests

OpenDev is preparing to upgrade its Gerrit deployment to 3.9, so
make sure git-review is working with the latest 3.9 point release.
This also requires a newer JDK.

While we're at it, switch from testing with Python 3.11 to 3.12
since that's ending up in more user environments these days.

Also drop unit test jobs that exercise old Python with new Gerrit
and new Python with old Gerrit to simplify the test matrix, because
our Python 3.6 platform lacks new enough Java to support current
Gerrit releases.

And since the Python 3.12 testing uses a platform with newer tools,
remove an unnecessary Git command output assert where the output has
diverged significantly from version to version, trusting that Git
will do what it's asked to do because we're not interested in
testing it for regressions anyway.

Depends-On: https://review.opendev.org/920841
Change-Id: Idb1af841ba68a6f536117ef64f3bec011e905203

.zuul.yaml

@@ -4,23 +4,12 @@
     nodeset: ubuntu-bionic
 
 - job:
-    name: nox-py36-gerrit-371
-    parent: nox-py36-gerrit-default
+    name: nox-py312-gerrit-395
+    parent: nox-py312
+    nodeset: ubuntu-noble
     vars:
       nox_environment:
-        WAR_URL: 'https://gerrit-releases.storage.googleapis.com/gerrit-3.7.1.war'
-
-- job:
-    name: nox-py311-gerrit-default
-    parent: nox-py311
-    nodeset: ubuntu-jammy
-
-- job:
-    name: nox-py311-gerrit-371
-    parent: nox-py311-gerrit-default
-    vars:
-      nox_environment:
-        WAR_URL: 'https://gerrit-releases.storage.googleapis.com/gerrit-3.7.1.war'
+        WAR_URL: 'https://gerrit-releases.storage.googleapis.com/gerrit-3.9.5.war'
 
 - project:
     vars:
@@ -32,9 +21,7 @@
         - build-python-release
         - nox-linters
         - nox-py36-gerrit-default
-        - nox-py36-gerrit-371
-        - nox-py311-gerrit-default
-        - nox-py311-gerrit-371
+        - nox-py312-gerrit-395
     gate:
       jobs: *jobs
     promote:

bindep.txt

@@ -2,4 +2,5 @@
 # install and tests; see http://docs.opendev.org/opendev/bindep/ for additional
 # information.
 
-openjdk-11-jdk [test]
+openjdk-11-jdk [test platform:ubuntu-bionic]
+openjdk-17-jdk [test platform:ubuntu-noble]

git_review/tests/test_git_review.py

@@ -19,7 +19,6 @@ import json
 import os
 import shutil
 import tempfile
-import testtools
 
 from git_review import tests
 from git_review.tests import utils
@@ -431,12 +430,7 @@ class GitReviewTestCase(tests.BaseGitReviewTestCase):
                              'maint', head_1)
         self._run_git('fetch')
 
-        br_out = self._run_git('checkout',
-                               '-b', 'test_branch', 'origin/maint')
-        expected_track = (".*\nBranch '?test_branch'? set up to track remote "
-                          "branch '?maint'? from '?origin'?.")
-        track_matcher = testtools.matchers.MatchesRegex(expected_track)
-        self.assertThat(br_out, track_matcher)
+        self._run_git('checkout', '-b', 'test_branch', 'origin/maint')
         branches = self._run_git('branch', '-a')
         expected_branch = '* test_branch'
         observed = branches.split('\n')