Re: [PATCH] test-lib: stricter unzip(1) check

[Jeff King <peff@peff.net>]

On Mon, Jul 18, 2016 at 12:43:27PM -0700, Junio C Hamano wrote:

> -- >8 --
> test: check "unzip" and "unzip -a"
> 
> Different platforms have implementations "unzip" that behave
> differently.  Most of the tests we use GIT_UNZIP we only care about
> the command to be able to extract from *.zip archive, but one test
> in t5003 wants it to also be able to grok the "-a" option.
> 
> Prepare a sample zip file that has a single text file in it, and try
> extracting its contents to see GIT_UNZIP is usable. when setting
> UNZIP prerequisite.  Similarly, set UNZIP_AUTOTEXT prerequisite by
> running GIT_UNZIP with the "-a" option.

I like the direction here, modulo the problems with "-a" that Eric
pointed out. Maybe "zip -l" would be a better approach.

One nit:

> +test_lazy_prereq UNZIP_AUTOTEXT '
> +	(
> +		mkdir unzip-autotext &&
> +		cd unzip-autotext
> +		"$GIT_UNZIP" -a "$TEST_DIRECTORY"/t5003/infozip-text.zip &&
> +		test -f text
> +	)
> +'

I don't think we need the extra directory or the subshell here.
test_lazy_prereq takes care of that for us.

> diff --git a/t/t5003/infozip-text.zip b/t/t5003/infozip-text.zip
> new file mode 100644
> index 0000000..a019acb
> Binary files /dev/null and b/t/t5003/infozip-text.zip differ

Couldn't apply this locally without --binary, of course. :)

-Peff