test_cmp expected actual
'
+test_expect_success 'tree add A, B (same)' '
+ cat >expect <<-\EOF &&
+ EOF
+ git reset --hard initial &&
+ mkdir sub &&
+ test_commit "add sub/file" "sub/file" "file" add-tree-A &&
+ git merge-tree initial add-tree-A add-tree-A >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'tree add A, B (different)' '
+ cat >expect <<-\EOF &&
+ added in both
+ our 100644 43d5a8ed6ef6c00ff775008633f95787d088285d sub/file
+ their 100644 ba629238ca89489f2b350e196ca445e09d8bb834 sub/file
+ @@ -1 +1,5 @@
+ +<<<<<<< .our
+ AAA
+ +=======
+ +BBB
+ +>>>>>>> .their
+ EOF
+ git reset --hard initial &&
+ mkdir sub &&
+ test_commit "add sub/file" "sub/file" "AAA" add-tree-a-b-A &&
+ git reset --hard initial &&
+ mkdir sub &&
+ test_commit "add sub/file" "sub/file" "BBB" add-tree-a-b-B &&
+ git merge-tree initial add-tree-a-b-A add-tree-a-b-B >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'tree unchanged A, removed B' '
+ cat >expect <<-\EOF &&
+ removed in remote
+ base 100644 43d5a8ed6ef6c00ff775008633f95787d088285d sub/file
+ our 100644 43d5a8ed6ef6c00ff775008633f95787d088285d sub/file
+ @@ -1 +0,0 @@
+ -AAA
+ EOF
+ git reset --hard initial &&
+ mkdir sub &&
+ test_commit "add sub/file" "sub/file" "AAA" tree-remove-b-initial &&
+ git rm sub/file &&
+ test_tick &&
+ git commit -m "remove sub/file" &&
+ git tag tree-remove-b-B &&
+ git merge-tree tree-remove-b-initial tree-remove-b-initial tree-remove-b-B >actual &&
+ test_cmp expect actual
+'
+
test_expect_success 'turn file to tree' '
git reset --hard initial &&
rm initial-file &&