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tests/lib/crc_byte-test: Fix incorrect variable types 

Some crc16_byte() and crc32_byte() tests had uint8_t instead of uint16_t
or uint32_t. That caused CRC values to be truncated and made tests
incorrect.
Also fix incorrect pre-calculated CRC values and change test buffer name
to more the accurate.

Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: I61ee029a6950a8dfeb54520b634eaf4ed6bac576
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52708
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
This commit is contained in:
Jakub Czapiga 2021-04-27 17:48:44 +02:00 committed by Patrick Georgi
parent 045fbf138a
commit ce38084db6
1 changed files with 23 additions and 20 deletions
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43
tests/lib/crc_byte-test.c
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@ -3,7 +3,7 @@
#include <tests/test.h>
#include <crc_byte.h>
static const uint8_t test_data_u8[] = {
static const uint8_t test_data_bytes[] = {
0x2f, 0x8f, 0x2d, 0x06, 0xc2, 0x11, 0x0c, 0xaf,
0xd7, 0x4b, 0x48, 0x71, 0xce, 0x3c, 0xfe, 0x29,
0x90, 0xf6, 0x33, 0x6d, 0x79, 0x23, 0x9d, 0x84,
@ -37,10 +37,10 @@ static const uint8_t test_data_u8[] = {
0xf5, 0x45, 0x05, 0x0d, 0x3d, 0x62, 0xb9, 0x00,
0x7b, 0x1e, 0xe8, 0xb5, 0x97, 0x6e, 0xa8, 0xf3,
};
static const size_t test_data_u8_sz = ARRAY_SIZE(test_data_u8);
static const size_t test_data_bytes_sz = ARRAY_SIZE(test_data_bytes);
static const uint8_t test_data_crc7_checksum = 0x30;
static const uint16_t test_data_crc16_checksum = 0x63;
static const uint32_t test_data_crc32_checksum = 0x93;
static const uint16_t test_data_crc16_checksum = 0x1263;
static const uint32_t test_data_crc32_checksum = 0xc7f52a93;
static void test_crc7_byte_zeros(void **state)
{
@ -106,9 +106,10 @@ static void test_crc7_byte_single_bit_difference(void **state)
assert_int_not_equal(crc_value_1, crc_value_2);
}
/* This test uses CRC() macro to check if it works correctly with provided crc function */
static void test_crc7_byte_static_data(void **state)
{
uint8_t crc_value = CRC(test_data_u8, test_data_u8_sz, crc7_byte);
uint8_t crc_value = CRC(test_data_bytes, test_data_bytes_sz, crc7_byte);
assert_int_equal(test_data_crc7_checksum, crc_value);
@ -146,8 +147,8 @@ static void test_crc16_same_data_twice_different_value(void **state)
static void test_crc16_byte_repeat_stream(void **state)
{
uint8_t crc_value_1 = 0u;
uint8_t crc_value_2 = 0u;
uint16_t crc_value_1 = 0u;
uint16_t crc_value_2 = 0u;
const size_t iterations = 17777;
/* Calculate CRC16 twice for the same data and expect the same result.
@ -167,8 +168,8 @@ static void test_crc16_byte_repeat_stream(void **state)
static void test_crc16_byte_single_bit_difference(void **state)
{
uint8_t crc_value_1 = 0u;
uint8_t crc_value_2 = 0u;
uint16_t crc_value_1 = 0u;
uint16_t crc_value_2 = 0u;
for (size_t i = 0; i < 2000; ++i) {
crc_value_1 = crc16_byte(crc_value_1, (i % 128) << 1);
@ -181,9 +182,10 @@ static void test_crc16_byte_single_bit_difference(void **state)
assert_int_not_equal(crc_value_1, crc_value_2);
}
/* This test uses CRC() macro to check if it works correctly with provided crc function */
static void test_crc16_byte_static_data(void **state)
{
uint8_t crc_value = CRC(test_data_u8, test_data_u8_sz, crc16_byte);
uint16_t crc_value = CRC(test_data_bytes, test_data_bytes_sz, crc16_byte);
assert_int_equal(test_data_crc16_checksum, crc_value);
@ -196,7 +198,7 @@ static void test_crc16_byte_static_data(void **state)
static void test_crc32_byte_zeros(void **state)
{
uint16_t crc_value = 0u;
uint32_t crc_value = 0u;
/* Expect zero as crc value after calculating it for single zero byte */
crc_value = crc32_byte(crc_value, 0);
@ -211,20 +213,20 @@ static void test_crc32_byte_zeros(void **state)
static void test_crc32_same_data_twice_different_value(void **state)
{
uint16_t crc_value = 0u;
uint32_t crc_value = 0u;
/* Expect value to change after feeding crc function with the same byte twice. */
crc_value = crc32_byte(crc_value, 0xDF);
assert_int_equal(0xf654, crc_value);
assert_int_equal(0x29d4f654, crc_value);
crc_value = crc32_byte(crc_value, 0xDF);
assert_int_equal(0xa254, crc_value);
assert_int_equal(0x47c8e4bb, crc_value);
}
static void test_crc32_byte_repeat_stream(void **state)
{
uint8_t crc_value_1 = 0u;
uint8_t crc_value_2 = 0u;
uint32_t crc_value_1 = 0u;
uint32_t crc_value_2 = 0u;
const size_t iterations = 8935;
/* Calculate CRC16 twice for the same data and expect the same result.
@ -244,8 +246,8 @@ static void test_crc32_byte_repeat_stream(void **state)
static void test_crc32_byte_single_bit_difference(void **state)
{
uint8_t crc_value_1 = 0u;
uint8_t crc_value_2 = 0u;
uint32_t crc_value_1 = 0u;
uint32_t crc_value_2 = 0u;
for (size_t i = 0; i < 1338; ++i) {
crc_value_1 = crc32_byte(crc_value_1, (i % 128) << 1);
@ -258,15 +260,16 @@ static void test_crc32_byte_single_bit_difference(void **state)
assert_int_not_equal(crc_value_1, crc_value_2);
}
/* This test uses CRC() macro to check if it works correctly with provided crc function */
static void test_crc32_byte_static_data(void **state)
{
uint8_t crc_value = CRC(test_data_u8, test_data_u8_sz, crc32_byte);
uint32_t crc_value = CRC(test_data_bytes, test_data_bytes_sz, crc32_byte);
assert_int_equal(test_data_crc32_checksum, crc_value);
/* Calculating CRC of data with its CRC should yield zero if data
and/or checksum is correct */
for (int i = 0; i < 4; ++i)
for (int i = 3; i >= 0; --i)
crc_value = crc32_byte(crc_value, (test_data_crc32_checksum >> 8 * i) & 0xFF);
assert_int_equal(0, crc_value);
}