Test suite: Provide t-git-get-ref-exact

No callers right now but I keep reinventing this.

diff --git a/tests/lib b/tests/lib
index e1bc6d941e8f66b60f1d4d5d1d089049e6da4bcc..0b0ae47280f0158efd3471ccf869d25afe6c1414 100644 (file)
--- a/tests/lib
+++ b/tests/lib
@@ -302,6 +302,16 @@ t-clean-on-branch () {
        t-output "## $1" git status -b --porcelain
 }
 
+t-git-get-ref-exact () {
+       local ref=$1
+       # does not dereference, unlike t-git-get-ref
+       case "$ref" in
+       refs/*) ;;
+       *) fail "t-git-get-ref-exact bad $ref" ;;
+       esac
+       git for-each-ref --format='%(objectname)' "[r]efs/${ref#refs/}"
+}
+
 t-git-get-ref () {
        local ref=$1
        case "$ref" in