Re: [PATCH v1 1/2] t: increase test coverage of signature verification output

[Johannes Schindelin <Johannes.Schindelin@gmx.de>]

Hi Hans,

I was wondering why your patches made the CI/PR builds fail on macOS and
Windows. This was a pretty hard thing to figure out, see below:

On Wed, 4 Mar 2020, Hans Jerry Illikainen wrote:

> diff --git a/t/t6200-fmt-merge-msg.sh b/t/t6200-fmt-merge-msg.sh
> index 8a72b4c43a..1922c1c42e 100755
> --- a/t/t6200-fmt-merge-msg.sh
> +++ b/t/t6200-fmt-merge-msg.sh
> @@ -6,6 +6,7 @@
>  test_description='fmt-merge-msg test'
>
>  . ./test-lib.sh
> +. "$TEST_DIRECTORY/lib-gpg.sh"
>
>  test_expect_success setup '
>  	echo one >one &&
> @@ -73,6 +74,10 @@ test_expect_success setup '
>  	apos="'\''"
>  '
>
> +test_expect_success GPG '

For developers who are very familiar with Git's test suite, it is really
hard to spot what is wrong with this line, and I was fooled for quite a
few days, too.

The thing is that this `GPG` looks like an innocent prereq and it is
correct: this test case really depends on GPG being present and working.

But it is not a prereq.

This is used as the _title_ of the test case. And on the macOS/Windows
agents, the GPG prereq is not met.

The reason is that this `test_expect_success` call only receives two
arguments, so it does not interpret the first one as a prereq. But I think
that this `GPG` was actually intended as a prereq, so the test case's
title is missing.

Could you kindly change this patch so that it adds a title, e.g. `set up
signed tag`?

That should let the CI build pass again.

Thank you,
Dscho

> +	git tag -s -m signed-tag-msg signed-good-tag left
> +'
> +
>  test_expect_success 'message for merging local branch' '
>  	echo "Merge branch ${apos}left${apos}" >expected &&
>
> @@ -83,6 +88,24 @@ test_expect_success 'message for merging local branch' '
>  	test_cmp expected actual
>  '
>
> +test_expect_success GPG 'message for merging local tag signed by good key' '
> +	git checkout master &&
> +	git fetch . signed-good-tag &&
> +	git fmt-merge-msg <.git/FETCH_HEAD >actual 2>&1 &&
> +	grep "^Merge tag ${apos}signed-good-tag${apos}" actual &&
> +	grep "^# gpg: Signature made" actual &&
> +	grep "^# gpg: Good signature from" actual
> +'
> +
> +test_expect_success GPG 'message for merging local tag signed by unknown key' '
> +	git checkout master &&
> +	git fetch . signed-good-tag &&
> +	GNUPGHOME=. git fmt-merge-msg <.git/FETCH_HEAD >actual 2>&1 &&
> +	grep "^Merge tag ${apos}signed-good-tag${apos}" actual &&
> +	grep "^# gpg: Signature made" actual &&
> +	grep "^# gpg: Can${apos}t check signature: \(public key not found\|No public key\)" actual
> +'
> +
>  test_expect_success 'message for merging external branch' '
>  	echo "Merge branch ${apos}left${apos} of $(pwd)" >expected &&
>
> --
> 2.25.1.709.g558d21736a
>
>
>