Test suite: Make t-ref-same* errors better by tracking and printing names

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

1 files changed, 4 insertions, 2 deletions

diff --git a/tests/lib b/tests/lib
index 401331a..039484d 100644
--- a/tests/lib
+++ b/tests/lib
@@ -492,14 +492,16 @@ t-ref-same-val () {
 	case "${t_ref_val-unset}" in
 	unset)		;;
 	"$val")		;;
-	*)		fail "ref varies: $name:\
- ${val:-nothing} != ${t_ref_val:-nothing}" ;;
+	*)		fail "ref varies: ($name)\
+ ${val:-nothing} != ${t_ref_val:-nothing} (${t_ref_names[*]})" ;;
 	esac
 	t_ref_val="$val"
+	t_ref_names+=("$name")
 }
 
 t-refs-same-start () {
 	unset t_ref_val
+	t_ref_names=()
 }
 
 t-refs-same () {