Re: [PATCH 7/8] t: introduce compatibility options to clar-based tests

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Patrick Steinhardt <ps@xxxxxx> writes:

> Our unit tests that don't yet use the clar unit testing framework ignore
> any option that they do not understand. It is thus fine to just pass
> test options we set up globally to those unit tests as they are simply
> ignored. This makes our life easier because we don't have to special
> case those options with Meson, where test options are set up globally
> via `meson test --test-args=`.
>
> But our clar-based unit testing framework is way stricter here and will
> fail in case it is passed an unknown option. Stub out these options with
> no-ops to make our life a bit easier.
>
> Signed-off-by: Patrick Steinhardt <ps@xxxxxx>
> ---
>  parse-options.h          | 12 ++++++++++++
>  t/unit-tests/unit-test.c | 19 ++++++++++++++++++-
>  2 files changed, 30 insertions(+), 1 deletion(-)
>
> diff --git a/parse-options.h b/parse-options.h
> index f0801d4532a175b65783689f2a68fb56da2c8e87..d01361ca97fd7227a0005b5c447d954fea472ca0 100644
> --- a/parse-options.h
> +++ b/parse-options.h
> @@ -353,6 +353,18 @@ struct option {
>  	.callback = parse_opt_noop_cb, \
>  }
>  
> +static char *parse_options_noop_ignored_value MAYBE_UNUSED;
> +#define OPT_NOOP_ARG(s, l) { \
> +	.type = OPTION_CALLBACK, \
> +	.short_name = (s), \
> +	.long_name = (l), \
> +	.value = &parse_options_noop_ignored_value, \
> +	.argh = "ignored", \
> +	.help = N_("no-op (backward compatibility)"), \
> +	.flags = PARSE_OPT_HIDDEN, \
> +	.callback = parse_opt_noop_cb, \
> +}
> +
>  #define OPT_ALIAS(s, l, source_long_name) { \
>  	.type = OPTION_ALIAS, \
>  	.short_name = (s), \
> diff --git a/t/unit-tests/unit-test.c b/t/unit-tests/unit-test.c
> index a474cdcfd351d9d624178a769329252237f951b7..fa8818842a42478c7a8fa6f6ecbee0777bdf472f 100644
> --- a/t/unit-tests/unit-test.c
> +++ b/t/unit-tests/unit-test.c
> @@ -18,8 +18,25 @@ int cmd_main(int argc, const char **argv)
>  			 N_("immediately exit upon the first failed test")),
>  		OPT_STRING_LIST('r', "run", &run_args, N_("suite[::test]"),
>  				N_("run only test suite or individual test <suite[::test]>")),
> -		OPT_STRING_LIST('x', "exclude", &exclude_args, N_("suite"),
> +		OPT_STRING_LIST(0, "exclude", &exclude_args, N_("suite"),

Could you please explain in the commit message why it's safe to unassign
`-x` from `--exclude`?


-- 
Toon




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