gh-117923: Catch test_webbrowser.test_parse_args_error stderr output

[Eclips4]

• Issue: test_webbrowser prints unnecessary information #117923

[sobolevn]

Thanks, cleaning up tests output is a good thing. But, tests are failing now :(

[sobolevn]

Thank you!

[sobolevn]

Before:

» ./python.exe -m test test_webbrowser -m test_parse_args_error -v

== CPython 3.13.0a6+ (heads/issue-116023-dirty:c96888591e8, Apr 16 2024, 11:11:16) [Clang 15.0.0 (clang-1500.3.9.4)]
== macOS-14.4.1-arm64-arm-64bit-Mach-O little-endian
== Python build: debug
== cwd: /Users/sobolev/Desktop/cpython2/build/test_python_worker_61399æ
== CPU count: 12
== encodings: locale=UTF-8 FS=utf-8
== resources: all test resources are disabled, use -u option to unskip tests

Using random seed: 1670789570
0:00:00 load avg: 1.75 Run 1 test sequentially
0:00:00 load avg: 1.75 [1/1] test_webbrowser
test_parse_args_error (test.test_webbrowser.CliTest.test_parse_args_error) ... usage: __main__.py [-h] [-n | -t] url
__main__.py: error: argument -t/--new-tab: not allowed with argument -n/--new-window
usage: __main__.py [-h] [-n | -t] url
__main__.py: error: argument -t/--new-tab: not allowed with argument -n/--new-window
usage: __main__.py [-h] [-n | -t] url
__main__.py: error: argument -t/--new-tab: not allowed with argument -n/--new-window
usage: __main__.py [-h] [-n | -t] url
__main__.py: error: argument -t/--new-tab: not allowed with argument -n/--new-window
usage: __main__.py [-h] [-n | -t] url
__main__.py: error: ambiguous option: --new could match --new-window, --new-tab
ok

----------------------------------------------------------------------
Ran 1 test in 0.003s

OK

== Tests result: SUCCESS ==

1 test OK.

Total duration: 72 ms
Total tests: run=1 (filtered)
Total test files: run=1/1 (filtered)
Result: SUCCESS

After:

» ./python.exe -m test test_webbrowser -m test_parse_args_error -v

== CPython 3.13.0a6+ (heads/issue-116023-dirty:c96888591e8, Apr 16 2024, 11:11:16) [Clang 15.0.0 (clang-1500.3.9.4)]
== macOS-14.4.1-arm64-arm-64bit-Mach-O little-endian
== Python build: debug
== cwd: /Users/sobolev/Desktop/cpython2/build/test_python_worker_61555æ
== CPU count: 12
== encodings: locale=UTF-8 FS=utf-8
== resources: all test resources are disabled, use -u option to unskip tests

Using random seed: 2078768694
0:00:00 load avg: 1.98 Run 1 test sequentially
0:00:00 load avg: 1.98 [1/1] test_webbrowser
test_parse_args_error (test.test_webbrowser.CliTest.test_parse_args_error) ... ok

----------------------------------------------------------------------
Ran 1 test in 0.003s

OK

== Tests result: SUCCESS ==

1 test OK.

Total duration: 85 ms
Total tests: run=1 (filtered)
Total test files: run=1/1 (filtered)
Result: SUCCESS

[sobolevn]

Does it need a backport?

[Eclips4]

Does it need a backport?

No, this test was not backported to 3.12/3.11 branches.
Thank you Nikita for your review!