From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 07 Sep 2016 18:35:44 GMT
Subject: Re: [PATCH] t9903: fix broken && chain
Message-ID: <xmqqbmzzmubj.fsf@gitster.mtv.corp.google.com>
In-Reply-To: <61de943c-df93-58e9-ca48-c469a71a1d43@kdbg.org>

Johannes Sixt <j6t@kdbg.org> writes:

> We might wonder why our && chain check does not catch this case:
> The && chain check uses a strange exit code with the expectation that
> the second or later part of a broken && chain would not exit with this
> particular code.
>
> This expectation does not work in this case because __git_ps1, being
> the first command in the second part of the broken && chain, records
> the current exit code, does its work, and finally returns to the caller
> with the recorded exit code. This fools our && chain check.
>
> Signed-off-by: Johannes Sixt <j6t@kdbg.org>
> ---
>  t/t9903-bash-prompt.sh | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/t/t9903-bash-prompt.sh b/t/t9903-bash-prompt.sh
> index 0db4469..97c9b32 100755
> --- a/t/t9903-bash-prompt.sh
> +++ b/t/t9903-bash-prompt.sh
> @@ -177,7 +177,7 @@ test_expect_success 'prompt - interactive rebase' '
>  	git checkout b1 &&
>  	test_when_finished "git checkout master" &&
>  	git rebase -i HEAD^ &&
> -	test_when_finished "git rebase --abort"
> +	test_when_finished "git rebase --abort" &&
>  	__git_ps1 >"$actual" &&
>  	test_cmp expected "$actual"
>  '

Thanks.