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Re: [GSoC][PATCH v1] t9811: avoid pipe in git commands in test script




Khalid Ali <khalludi123@xxxxxxxxx> writes:

> The exit code of the upstream in a pipe is ignored thus we
> should avoid using it. By writing out the output of the git command to a
> file, we can test the exit codes of both the commands.

End the log message here by moving the next two paragraphs below the
three-dash line.

>
> Aside from the commit message, I plan to apply for GSoC. Planning to
> solve the rebase/cherry-pick issue or adding functionality for the
> rebase interactive command. 
>
> Any review on this commit would be appreciated!
>
> Signed-off-by: Khalid Ali <khalludi123@xxxxxxxxx>
> ---
>  t/t9811-git-p4-label-import.sh | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/t/t9811-git-p4-label-import.sh b/t/t9811-git-p4-label-import.sh
> index 602b0a5d5c..2f4e80ed55 100755
> --- a/t/t9811-git-p4-label-import.sh
> +++ b/t/t9811-git-p4-label-import.sh
> @@ -63,7 +63,8 @@ test_expect_success 'basic p4 labels' '
>  		git checkout TAG_WITH\$_SHELL_CHAR &&
>  		test -f f1 && test -f f2 && test -f file_with_\$metachar &&
>  
> -		git show TAG_LONG_LABEL | grep -q "A Label second line"
> +		git show TAG_LONG_LABEL >actual &&
> +		grep -q "A Label second line" actual

There is no mention of file 'actual' before this patch, so we can
reasonably be sure that we are not breaking expectations of existing
test that a file with that name has contents different from what the
above command produces.  On the other hand, if later tests have
things like "git add ." or "git status -s" and expects that there is
no such file called 'actual', this change may have broken the
expectation.

I *think* the above is done after going inside $git directory, which
will be removed with "test_when_finished cleanup_git", so it is
fairly clear that leaving an extra file 'actual' behind at this
point is safe.

This is not a problem with this conversion, but we tend to avoid
squelching standard output to help debugging tests.  An independent
clean-up patch may want to replace "grep -q" with just "grep".

> @@ -92,9 +93,9 @@ test_expect_success 'two labels on the same changelist' '
>  		cd "$git" &&
>  		git p4 sync --import-labels &&
>  
> -		git tag | grep TAG_F1 &&
> -		git tag | grep -q TAG_F1_1 &&
> -		git tag | grep -q TAG_F1_2 &&
> +		git tag >actual && grep TAG_F1 actual &&
> +		git tag >actual && grep -q TAG_F1_1 actual &&
> +		git tag >actual && grep -q TAG_F1_2 actual &&

Ditto.

>  
>  		cd main &&
>  
> @@ -205,7 +206,7 @@ test_expect_success 'use git config to enable import/export of tags' '
>  		git p4 rebase --verbose &&
>  		git p4 submit --verbose &&
>  		git tag &&
> -		git tag | grep TAG_F1_1
> +		git tag >actual && grep TAG_F1_1 actual
>  	) &&

I notice that this test piece does not call cleanup_git when it is
done.  I think that is a mistake (not introduced by this patch) that
ma want to get fixed independently.

>  	(
>  		cd "$cli" &&