Re: [PATCH 2/2] t0303: resurrect commit message as test documentation

> --- a/t/t0303-credential-external.sh
> +++ b/t/t0303-credential-external.sh
> @@ -1,5 +1,23 @@
>  #!/bin/sh
>  
> +# Test harness for external credential helpers
> +#
> +# This is a tool for authors of external helper tools to sanity-check
> +# their helpers. If you have written the "git-credential-foo" helper,
> +# you check it with:
> +#
> +# GIT_TEST_CREDENTIAL_HELPER=foo make t0303-credential-external.sh
> +#
> +# This assumes that your helper is capable of both storing and
> +# retrieving credentials (some helpers may be read-only, and
> +# they will fail these tests).
> +#
> +# If your helper supports time-based expiration with a
> +# configurable timeout, you can test that feature with:
> +#
> +#  GIT_TEST_CREDENTIAL_HELPER_TIMEOUT="foo --timeout=1" \
> +#      make t0303-credential-external.sh
> +
>  test_description='external credential helper tests'