Re: [PATCH v0 2/3] t/t3400-rebase.sh: add more tests to help migrating git-rebase.sh to C

[Junio C Hamano <gitster@pobox.com>]

Nguyễn Thái Ngọc Duy <pclouds@gmail.com> writes:

> +test_expect_success 'rebase on dirty worktree' '
> +     echo dirty >> A &&
> +     ! git rebase master'

It is a good defensive way to use "test_must_fail" instead of "!" when
testing git itself; test_must_fail does not allow the program to terminate
with non-zero value by segfaulting, while "!" does.

> +test_expect_success 'rebase on dirty cache' '
> +     git add  A &&

Two-spaces?

> +     ! git rebase master'
> +
>  test_expect_success 'rebase against master' '
> +     git reset HEAD &&
> +     git checkout -f &&

Hmm, why not "reset --hard HEAD".  Not asking to change (yet), but just
asking if there is a reason.

>       git rebase master'
>  
> +test_expect_success 'rebase against master twice' '
> +	git rebase master 2>&1|grep "Current branch my-topic-branch is up to date\\."
> +'
> +
> +test_expect_success 'rebase against master twice with --force' '
> +	git rebase --force-rebase master 2>&1|grep "Current branch my-topic-branch is up to date, rebase forced"

Do not to use any pipe while testing, i.e.

	git rebase >out 2>err &&
        grep "what you expect in 'out'" out &&
        grep "what you expect in 'err'" err

so that you can catch exit status from the command you placed in the
upstream of the pipe.