Add test for `git_worktree_add` no checkout

tests/worktree/worktree.c

@@ -292,6 +292,27 @@ void test_worktree_worktree__add_with_explicit_branch(void)
 	git_worktree_free(wt);
 }
 
+void test_worktree_worktree__add_no_checkout(void)
+{
+	git_worktree *wt;
+	git_repository *wtrepo;
+	git_index *index;
+	git_buf path = GIT_BUF_INIT;
+	git_worktree_add_options opts = GIT_WORKTREE_ADD_OPTIONS_INIT;
+
+	opts.checkout_opts.checkout_strategy = GIT_CHECKOUT_NONE;
+
+	cl_git_pass(git_buf_joinpath(&path, fixture.repo->workdir, "../worktree-no-checkout"));
+	cl_git_pass(git_worktree_add(&wt, fixture.repo, "worktree-no-checkout", path.ptr, &opts));
+
+	cl_git_pass(git_repository_open(&wtrepo, path.ptr));
+	cl_git_pass(git_repository_index(&index, wtrepo));
+	cl_assert_equal_i(git_index_entrycount(index), 0);
+
+	git_buf_dispose(&path);
+	git_worktree_free(wt);
+	git_repository_free(wtrepo);
+}
 
 void test_worktree_worktree__init_existing_worktree(void)
 {