1 files changed, 78 insertions, 0 deletions
diff --git a/third_party/git/t/t3503-cherry-pick-root.sh b/third_party/git/t/t3503-cherry-pick-root.sh
new file mode 100755
index 000000000000..e27f39d1e5b0
--- /dev/null
+++ b/third_party/git/t/t3503-cherry-pick-root.sh
@@ -0,0 +1,78 @@
+#!/bin/sh
+
+test_description='test cherry-picking (and reverting) a root commit'
+
+. ./test-lib.sh
+
+test_expect_success setup '
+
+	echo first > file1 &&
+	git add file1 &&
+	test_tick &&
+	git commit -m "first" &&
+
+	git symbolic-ref HEAD refs/heads/second &&
+	rm .git/index file1 &&
+	echo second > file2 &&
+	git add file2 &&
+	test_tick &&
+	git commit -m "second" &&
+
+	git symbolic-ref HEAD refs/heads/third &&
+	rm .git/index file2 &&
+	echo third > file3 &&
+	git add file3 &&
+	test_tick &&
+	git commit -m "third"
+
+'
+
+test_expect_success 'cherry-pick a root commit' '
+
+	git checkout second^0 &&
+	git cherry-pick master &&
+	echo first >expect &&
+	test_cmp expect file1
+
+'
+
+test_expect_success 'revert a root commit' '
+
+	git revert master &&
+	test_path_is_missing file1
+
+'
+
+test_expect_success 'cherry-pick a root commit with an external strategy' '
+
+	git cherry-pick --strategy=resolve master &&
+	echo first >expect &&
+	test_cmp expect file1
+
+'
+
+test_expect_success 'revert a root commit with an external strategy' '
+
+	git revert --strategy=resolve master &&
+	test_path_is_missing file1
+
+'
+
+test_expect_success 'cherry-pick two root commits' '
+
+	echo first >expect.file1 &&
+	echo second >expect.file2 &&
+	echo third >expect.file3 &&
+
+	git checkout second^0 &&
+	git cherry-pick master third &&
+
+	test_cmp expect.file1 file1 &&
+	test_cmp expect.file2 file2 &&
+	test_cmp expect.file3 file3 &&
+	git rev-parse --verify HEAD^^ &&
+	test_must_fail git rev-parse --verify HEAD^^^
+
+'
+
+test_done