t3903: abstract away SHA-1-specific constants

diff --git a/t/t3411-rebase-preserve-around-merges.sh b/t/t3411-rebase-preserve-around-merges.sh
index dc81bf27eb736d32df0f0c3205de3254898d20b5..fb45e7bf7bd638314b67d593327474cea06be9bb 100755 (executable)
--- a/t/t3411-rebase-preserve-around-merges.sh
+++ b/t/t3411-rebase-preserve-around-merges.sh
@@ -10,6 +10,11 @@ a merge to before the merge.
 '
 . ./test-lib.sh
 
+if ! test_have_prereq REBASE_P; then
+       skip_all='skipping git rebase -p tests, as asked for'
+       test_done
+fi
+
 . "$TEST_DIRECTORY"/lib-rebase.sh
 
 set_fake_editor