test "$(cat a)" = "$(printf "1\n2\n3\n4\n5\n6\n7\n8\n")"
'
+#
+# criss-cross with rename/rename(1to2)/add-dest + simple modify:
+#
+# B D
+# o---o
+# / \ / \
+# A o X ? F
+# \ / \ /
+# o---o
+# C E
+#
+# Commit A: new file: a
+# Commit B: rename a->b, add c
+# Commit C: rename a->c
+# Commit D: merge B&C, keeping A:a and B:c
+# Commit E: merge B&C, keeping A:a and slightly modified c from B
+#
+# Merging commits D & E should result in no conflict. The virtual merge
+# base of B & C needs to not delete B:c for that to work, though...
+
+test_expect_success 'setup criss-cross+rename/rename/add-dest + simple modify' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ >a &&
+ git add a &&
+ git commit -m A &&
+ git tag A &&
+
+ git checkout -b B A &&
+ git mv a b &&
+ printf "1\n2\n3\n4\n5\n6\n7\n" >c &&
+ git add c &&
+ git commit -m B &&
+
+ git checkout -b C A &&
+ git mv a c &&
+ git commit -m C &&
+
+ git checkout B^0 &&
+ git merge --no-commit -s ours C^0 &&
+ git mv b a &&
+ git commit -m "D is like B but renames b back to a" &&
+ git tag D &&
+
+ git checkout B^0 &&
+ git merge --no-commit -s ours C^0 &&
+ git mv b a &&
+ echo 8 >>c &&
+ git add c &&
+ git commit -m "E like D but has mod in c" &&
+ git tag E
+'
+
+test_expect_success 'virtual merge base handles rename/rename(1to2)/add-dest' '
+ git checkout D^0 &&
+
+ git merge -s recursive E^0 &&
+
+ test 2 -eq $(git ls-files -s | wc -l) &&
+ test 0 -eq $(git ls-files -u | wc -l) &&
+ test 0 -eq $(git ls-files -o | wc -l) &&
+
+ test $(git rev-parse HEAD:a) = $(git rev-parse A:a) &&
+ test $(git rev-parse HEAD:c) = $(git rev-parse E:c)
+'
+
test_done