Lucas Seiki Oshiro [off-list ref] writes:

quoted

+test_repo_info_path () {
+ field_name=$1
+ expect_relative=$2
+
+ test_expect_success "query individual key: path.$field_name.absolute" '
+ (
+ cd test-repo/sub &&
+ expect_absolute=$(cd .. && pwd)/.git &&

Note that this semi-hardcoded path won't work for other values (e.g.
top level dir, superproject working tree). This needs to be a parameter
just like `expect_relative`

Good thinking.  Thanks for carefully reading.