################################################################
# Try merging and showing the various diffs
-test_expect_success \
+# The tree is dirty at this point.
+test_expect_failure \
'3-way merge with git-read-tree -m' \
"git-read-tree -m $tree_O $tree_A $tree_B"
+# This is done on an empty work directory, which is the normal
+# merge person behaviour.
+test_expect_success \
+ '3-way merge with git-read-tree -m' \
+ "rm -fr [NDMALTS][NDMALTSF] Z &&
+ rm .git/index &&
+ git-read-tree -m $tree_O $tree_A $tree_B"
+
+# This starts out with the first head, which is the normal
+# patch submitter behaviour.
+test_expect_success \
+ '3-way merge with git-read-tree -m' \
+ "git-read-tree $tree_A &&
+ git-checkout-cache -f -u -a &&
+ git-read-tree -m $tree_O $tree_A $tree_B"
+
_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
test_expect_success \