Adjust tests for Python 3.13

And use this version in CI.
Also adjust the sample output of --help in README.

.github/workflows/tests.yml

@@ -10,14 +10,15 @@ jobs:
         include:
           - python: "3.9"
             psycopg: "psycopg2"
-          - python: "3.12"
+          - python: "3.13"
             psycopg: "psycopg3"
     steps:
       - uses: actions/checkout@v4
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python }}
+          allow-prereleases: true
       - name: Install tox
         run: pip install tox
       - name: Add fr_FR and zh_TW for test purposes

README.md

@@ -87,7 +87,7 @@ ex:
     pg_activity [options] [connection string]
 
     Configuration:
-      -P PROFILE, --profile PROFILE
+      -P, --profile PROFILE
                             Configuration profile matching a PROFILE.conf file in
                             ${XDG_CONFIG_HOME:~/.config}/pg_activity/ or
                             /etc/pg_activity/, or a built-in profile.
@@ -123,13 +123,11 @@ ex:
     Connection Options:
       connection string     A valid connection string to the database, e.g.:
                             'host=HOSTNAME port=PORT user=USER dbname=DBNAME'.
-      -h HOSTNAME, --host HOSTNAME
-                            Database server host or socket directory.
-      -p PORT, --port PORT  Database server port.
-      -U USERNAME, --username USERNAME
+      -h, --host HOSTNAME   Database server host or socket directory.
+      -p, --port PORT       Database server port.
+      -U, --username USERNAME
                             Database user name.
-      -d DBNAME, --dbname DBNAME
-                            Database name to connect to.
+      -d, --dbname DBNAME   Database name to connect to.
 
     Process table display options:
       These options may be used hide some columns from the processes table.

tests/test_cli_help.txt

@@ -1,7 +1,7 @@
 >>> import sys
 >>> import pytest
->>> if sys.version_info < (3, 9):
-...     pytest.skip("only applies for Python version >= 3.9")
+>>> if sys.version_info < (3, 13):
+...     pytest.skip("only applies for Python version >= 3.13")
 ...
 
 >>> from pgactivity import cli
@@ -12,7 +12,7 @@ usage: pytest [options] [connection string]
 htop like application for PostgreSQL server activity monitoring.
 <BLANKLINE>
 Configuration:
-  -P PROFILE, --profile PROFILE
+  -P, --profile PROFILE
                         Configuration profile matching a PROFILE.conf file in
                         ${XDG_CONFIG_HOME:~/.config}/pg_activity/ or
                         /etc/pg_activity/, or a built-in profile.
@@ -48,13 +48,11 @@ Options:
 Connection Options:
   connection string     A valid connection string to the database, e.g.:
                         'host=HOSTNAME port=PORT user=USER dbname=DBNAME'.
-  -h HOSTNAME, --host HOSTNAME
-                        Database server host or socket directory.
-  -p PORT, --port PORT  Database server port.
-  -U USERNAME, --username USERNAME
+  -h, --host HOSTNAME   Database server host or socket directory.
+  -p, --port PORT       Database server port.
+  -U, --username USERNAME
                         Database user name.
-  -d DBNAME, --dbname DBNAME
-                        Database name to connect to.
+  -d, --dbname DBNAME   Database name to connect to.
 <BLANKLINE>
 Process table display options:
   These options may be used hide some columns from the processes table.

tests/test_cli_help_py312.txt

@@ -0,0 +1,92 @@
+>>> import sys
+>>> import pytest
+>>> if sys.version_info >= (3, 13):
+...     pytest.skip("only applies for Python version < 3.13")
+...
+
+>>> from pgactivity import cli
+>>> parser = cli.get_parser()
+>>> parser.print_help()
+usage: pytest [options] [connection string]
+<BLANKLINE>
+htop like application for PostgreSQL server activity monitoring.
+<BLANKLINE>
+Configuration:
+  -P PROFILE, --profile PROFILE
+                        Configuration profile matching a PROFILE.conf file in
+                        ${XDG_CONFIG_HOME:~/.config}/pg_activity/ or
+                        /etc/pg_activity/, or a built-in profile.
+<BLANKLINE>
+Options:
+  --blocksize BLOCKSIZE
+                        Filesystem blocksize (default: 4096).
+  --rds                 Enable support for AWS RDS (implies --no-tempfiles and
+                        filters out the rdsadmin database from space
+                        calculation).
+  --output FILEPATH     Store running queries as CSV.
+  --db-size, --no-db-size
+                        Enable/disable total size of DB.
+  --tempfiles, --no-tempfiles
+                        Enable/disable tempfile count and size.
+  --walreceiver, --no-walreceiver
+                        Enable/disable walreceiver checks.
+  -w, --wrap-query      Wrap query column instead of truncating.
+  --duration-mode DURATION_MODE
+                        Duration mode. Values: 1-QUERY(default),
+                        2-TRANSACTION, 3-BACKEND.
+  --min-duration SECONDS
+                        Don't display queries with smaller than specified
+                        duration (in seconds).
+  --filter FIELD:REGEX  Filter activities with a (case insensitive) regular
+                        expression applied on selected fields. Known fields
+                        are: dbname.
+  --debug-file DEBUG_FILE
+                        Enable debug and write it to DEBUG_FILE.
+  --version             show program's version number and exit.
+  --help                Show this help message and exit.
+<BLANKLINE>
+Connection Options:
+  connection string     A valid connection string to the database, e.g.:
+                        'host=HOSTNAME port=PORT user=USER dbname=DBNAME'.
+  -h HOSTNAME, --host HOSTNAME
+                        Database server host or socket directory.
+  -p PORT, --port PORT  Database server port.
+  -U USERNAME, --username USERNAME
+                        Database user name.
+  -d DBNAME, --dbname DBNAME
+                        Database name to connect to.
+<BLANKLINE>
+Process table display options:
+  These options may be used hide some columns from the processes table.
+<BLANKLINE>
+  --pid, --no-pid       Enable/disable PID.
+  --database, --no-database
+                        Enable/disable DATABASE.
+  --user, --no-user     Enable/disable USER.
+  --client, --no-client
+                        Enable/disable CLIENT.
+  --cpu, --no-cpu       Enable/disable CPU%.
+  --mem, --no-mem       Enable/disable MEM%.
+  --read, --no-read     Enable/disable READ/s.
+  --write, --no-write   Enable/disable WRITE/s.
+  --time, --no-time     Enable/disable TIME+.
+  --wait, --no-wait     Enable/disable W.
+  --app-name, --no-app-name
+                        Enable/disable APP.
+<BLANKLINE>
+Header display options:
+  --no-inst-info        Hide instance information.
+  --no-sys-info         Hide system information.
+  --no-proc-info        Hide workers process information.
+<BLANKLINE>
+Other display options:
+  --hide-queries-in-logs
+                        Disable log_min_duration_statements and
+                        log_min_duration_sample for pg_activity.
+  --refresh REFRESH     Refresh rate. Values: 0.5, 1, 2, 3, 4, 5 (default: 2).
+<BLANKLINE>
+The connection string can be in the form of a list of Key/Value parameters or
+an URI as described in the PostgreSQL documentation. The parsing is delegated
+to the libpq: different versions of the client library may support different
+formats or parameters (for example, connection URIs are only supported from
+libpq 9.2).