vboot/tests/utility_tests.c

/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 *
 * Tests for utility functions
 */

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "test_common.h"
#include "utility.h"
#include "vboot_common.h"

/* Test utility.h and sysincludes.h macros */
static void MacrosTest(void)
{
	int64_t a = -10, b = -20;
	uint64_t u = (0xABCD00000000ULL);
	uint64_t v = (0xABCD000000ULL);

	TEST_EQ(CombineUint16Pair(1, 2), 0x00010002, "CombineUint16Pair");
	TEST_EQ(CombineUint16Pair(0xFFFE, 0xFFFF), 0xFFFEFFFF,
		"CombineUint16Pair 2");
	TEST_EQ(CombineUint16Pair(-4, -16), 0xFFFCFFF0,
		"CombineUint16Pair big negative");
	TEST_EQ(CombineUint16Pair(0x10003, 0x10004), 0x00030004,
		"CombineUint16Pair overflow");

	TEST_EQ(Min(1, 2), 1, "Min 1");
	TEST_EQ(Min(4, 3), 3, "Min 2");
	TEST_EQ(Min(5, 5), 5, "Min 5");
	TEST_EQ(Min(a, b), b, "Min uint64 1");
	TEST_EQ(Min(b, a), b, "Min uint64 2");
	TEST_EQ(Min(b, b), b, "Min uint64 same");

	TEST_EQ(u >> 8, v, "uint64_t >> 8");
	TEST_EQ(u >> 0, u, "uint64_t >> 0");
	TEST_EQ(u >> 36, (uint64_t)0xABC, "uint64_t >> 36");

	TEST_EQ(v * (uint32_t)0, 0, "uint64_t * uint32_t 0");
	TEST_EQ(v * (uint32_t)1, v, "uint64_t * uint32_t 1");
	TEST_EQ(v * (uint32_t)256, u, "uint64_t * uint32_t 256");
}

int main(int argc, char* argv[])
{
	int error_code = 0;

	MacrosTest();

	if (!gTestSuccess)
		error_code = 255;

	return error_code;
}