Re: [PATCH v5 4/6] dir_iterator: add tests for dir_iterator API

> Create t/helper/test-dir-iterator.c, which prints relevant information
> about a directory tree iterated over with dir_iterator.
> 
> Create t/t0065-dir-iterator.sh, which tests that dir_iterator does
> iterate through a whole directory tree and that post-order directory
> iteration is correctly implemented.
> 
> [...]
> diff --git a/t/helper/test-dir-iterator.c b/t/helper/test-dir-iterator.c
> new file mode 100644
> index 0000000..b4a148f
> --- /dev/null
> +++ b/t/helper/test-dir-iterator.c
> @@ -0,0 +1,32 @@
> [...]
> +
> +int cmd_main(int argc, const char **argv) {
> +	if (argc < 2) {
> +		return 1;
> +	}
> +
> +	struct strbuf path = STRBUF_INIT;
> +	strbuf_add(&path, argv[1], strlen(argv[1]));
> +
> +	unsigned flag = 0;
> +	if (argc == 3 && strcmp(argv[2], "--post-order") == 0)
> +		flag = DIR_ITERATOR_POST_ORDER_TRAVERSAL;
> +
> +	struct dir_iterator *diter = dir_iterator_begin((&path)->buf, flag);
> +
> +	while (dir_iterator_advance(diter) == ITER_OK) {
> +		if (S_ISDIR(diter->st.st_mode))
> +			printf("[d] ");
> +		else
> +			printf("[f] ");
> +
> +		printf("(%s) %s\n", diter->relative_path, diter->path.buf);
> +	}
> +
> +	return 0;
> +}
> [...]