git read-tree -m "$1" "$2" && git ls-files --stage
}
-_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
-_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
compare_change () {
sed -n >current \
-e '/^--- /d; /^+++ /d; /^@@ /d;' \
git ls-files --stage | tee >treeMcheck.out &&
test_cmp treeM.out treeMcheck.out'
+test_expect_success '-m references the correct modified tree' '
+ echo >file-a &&
+ echo >file-b &&
+ git add file-a file-b &&
+ git commit -a -m "test for correct modified tree"
+ git branch initial-mod &&
+ echo b >file-b &&
+ git commit -a -m "B" &&
+ echo a >file-a &&
+ git add file-a &&
+ git ls-tree $(git write-tree) file-a >expect &&
+ git read-tree -m HEAD initial-mod &&
+ git ls-tree $(git write-tree) file-a >actual &&
+ test_cmp expect actual
+'
+
test_done