Test against psycopg 2 and 3

.github/workflows/test.yml

@@ -13,22 +13,22 @@ concurrency:
   cancel-in-progress: true
 
 # Our test suite should cover:
-# - all supported databases against current Python and Django
+# - all supported databases against current Python and Django (including psycopg v2 and v3)
 # - at least one test run for each older supported version of Python and Django
 # - at least one test run for each supported Elasticsearch version
 # - a test run against Django's git main and active stable branch (allowing failures)
 # - test runs with USE_EMAIL_USER_MODEL=yes, DISABLE_TIMEZONE=yes and WAGTAIL_CHECK_TEMPLATE_NUMBER_FORMAT=1
 
 # Current configuration:
-# - django 4.2, python 3.9, postgres:12, parallel
+# - django 4.2, python 3.9, postgres:12, psycopg 2, parallel
 # - django 4.2, python 3.10, mysql:8.0
 # - django 5.0, python 3.11, sqlite, WAGTAIL_CHECK_TEMPLATE_NUMBER_FORMAT=1
 # - django 5.1, python 3.12, mysql:8.1, parallel
 # - django 5.1, python 3.12, sqlite, parallel, USE_EMAIL_USER_MODEL=yes
-# - django 5.1, python 3.12, postgres:15, parallel, DISABLE_TIMEZONE=yes
-# - django stable/5.1.x, python 3.11, postgres:15 (allow failures)
-# - django main, python 3.12, postgres:latest, parallel (allow failures)
-# - elasticsearch 7, django 4.2, python 3.9, postgres:latest
+# - django 5.1, python 3.12, postgres:15, psycopg 3, parallel, DISABLE_TIMEZONE=yes
+# - django stable/5.1.x, python 3.11, postgres:15, psycopg 3 (allow failures)
+# - django main, python 3.12, postgres:latest, psycopg 3, parallel (allow failures)
+# - elasticsearch 7, django 4.2, python 3.9, postgres:latest, psycopg 2
 # - opensearch 2, django 5.0, python 3.10, sqlite
 # - elasticsearch 8, django 5.1, python 3.12, sqlite, USE_EMAIL_USER_MODEL=yes
 
@@ -89,20 +89,24 @@ jobs:
         include:
           - python: '3.9'
             django: 'Django>=4.2,<4.3'
+            psycopg: 'psycopg2>=2.6'
             experimental: false
             parallel: '--parallel'
           - python: '3.12'
             django: 'Django>=5.0,<5.1'
+            psycopg: 'psycopg>=3.1.8'
             postgres: 'postgres:15'
             notz: notz
             experimental: false
             parallel: '--parallel'
           - python: '3.11'
             django: 'git+https://github.com/django/django.git@stable/5.1.x#egg=Django'
+            psycopg: 'psycopg>=3.1.8'
             postgres: 'postgres:15'
             experimental: true
           - python: '3.12'
             django: 'git+https://github.com/django/django.git@main#egg=Django'
+            psycopg: 'psycopg>=3.1.8'
             experimental: true
             postgres: 'postgres:latest'
             parallel: '--parallel'
@@ -125,7 +129,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install "psycopg2>=2.6"
+          pip install "${{ matrix.psycopg }}"
           pip install -e '.[testing]' --config-settings editable_mode=strict
           pip install "${{ matrix.django }}"
           ${{ matrix.install_extras }}