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/* test_compare256_rle.cc -- compare256_rle unit tests
* Copyright (C) 2022 Nathan Moinvaziri
* For conditions of distribution and use, see copyright notice in zlib.h
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
extern "C" {
# include "zbuild.h"
# include "zutil.h"
# include "compare256_rle.h"
}
#include <gtest/gtest.h>
#define MAX_COMPARE_SIZE (256)
/* Ensure that compare256_rle returns the correct match length */
static inline void compare256_rle_match_check(compare256_rle_func compare256_rle) {
int32_t match_len, i;
uint8_t str1[] = {'a', 'a', 0};
uint8_t *str2;
str2 = (uint8_t *)PREFIX(zcalloc)(NULL, 1, MAX_COMPARE_SIZE);
ASSERT_TRUE(str2 != NULL);
memset(str2, 'a', MAX_COMPARE_SIZE);
for (i = 0; i <= MAX_COMPARE_SIZE; i++) {
if (i < MAX_COMPARE_SIZE)
str2[i] = 0;
match_len = compare256_rle(str1, str2);
EXPECT_EQ(match_len, i);
if (i < MAX_COMPARE_SIZE)
str2[i] = 'a';
}
PREFIX(zcfree)(NULL, str2);
}
#define TEST_COMPARE256_RLE(name, func, support_flag) \
TEST(compare256_rle, name) { \
if (!(support_flag)) { \
GTEST_SKIP(); \
return; \
} \
compare256_rle_match_check(func); \
}
TEST_COMPARE256_RLE(8, compare256_rle_8, 1)
TEST_COMPARE256_RLE(64, compare256_rle_64, 1)
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