check_cache_at DF/DF dirty &&
:'
+test_expect_success \
+ 'a/b (untracked) vs a case setup.' \
+ 'rm -f .git/index &&
+ : >a &&
+ git update-index --add a &&
+ treeM=`git write-tree` &&
+ echo treeM $treeM &&
+ git ls-tree $treeM &&
+ git ls-files --stage >treeM.out &&
+
+ rm -f a &&
+ git update-index --remove a &&
+ mkdir a &&
+ : >a/b &&
+ treeH=`git write-tree` &&
+ echo treeH $treeH &&
+ git ls-tree $treeH'
+
+test_expect_success \
+ 'a/b (untracked) vs a, plus c/d case test.' \
+ '! git read-tree -u -m "$treeH" "$treeM" &&
+ git ls-files --stage &&
+ test -f a/b'
+
+test_expect_success \
+ 'a/b vs a, plus c/d case setup.' \
+ 'rm -f .git/index &&
+ rm -fr a &&
+ : >a &&
+ mkdir c &&
+ : >c/d &&
+ git update-index --add a c/d &&
+ treeM=`git write-tree` &&
+ echo treeM $treeM &&
+ git ls-tree $treeM &&
+ git ls-files --stage >treeM.out &&
+
+ rm -f a &&
+ mkdir a
+ : >a/b &&
+ git update-index --add --remove a a/b &&
+ treeH=`git write-tree` &&
+ echo treeH $treeH &&
+ git ls-tree $treeH'
+
+test_expect_success \
+ 'a/b vs a, plus c/d case test.' \
+ 'git read-tree -u -m "$treeH" "$treeM" &&
+ git ls-files --stage | tee >treeMcheck.out &&
+ test_cmp treeM.out treeMcheck.out'
+
test_done