#include <stdlib.h>

#include <string.h>

#include <libgen.h>

#include "test.h"

static void t(char *p, char *b) {

	char *tmp = strdup(p);

	char *s = dirname(tmp);

	if (strcmp(b,s) != 0)

		error("dirname(\"%s\") returned \"%s\"; expected \"%s\"\n", p, s, b);

	free(tmp);

}

void test_dirname() {

	if (strcmp(dirname(0), ".") != 0)

		error("dirname(0) returned \"%s\"; expected \".\"\n", dirname(0));

	t("", ".");

	t("/usr/lib", "/usr");

	t("/usr/", "/");

	t("usr", ".");

	t("/", "/");

	t("///", "/");

	t(".", ".");

	t("..", ".");

}