mirror of
https://github.com/GerbilSoft/zlib-ng.git
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bf05e882b8
- Remove obsolete checks - Fix checks that are inconsistent - Stop compiling compare256/longest_match variants that never gets called - Improve how the generic compare256 functions are handled. - Allow overriding OPTIMAL_CMP This simplifies the code and avoids having a lot of code in the compiled library than can never get executed.
61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
/* test_compare256_rle.cc -- compare256_rle unit tests
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* Copyright (C) 2022 Nathan Moinvaziri
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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extern "C" {
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# include "zbuild.h"
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# include "zutil.h"
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# include "compare256_rle.h"
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}
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#include <gtest/gtest.h>
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#define MAX_COMPARE_SIZE (256)
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/* Ensure that compare256_rle returns the correct match length */
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static inline void compare256_rle_match_check(compare256_rle_func compare256_rle) {
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int32_t match_len, i;
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uint8_t str1[] = {'a', 'a', 0};
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uint8_t *str2;
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str2 = (uint8_t *)PREFIX(zcalloc)(NULL, 1, MAX_COMPARE_SIZE);
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ASSERT_TRUE(str2 != NULL);
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memset(str2, 'a', MAX_COMPARE_SIZE);
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for (i = 0; i <= MAX_COMPARE_SIZE; i++) {
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if (i < MAX_COMPARE_SIZE)
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str2[i] = 0;
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match_len = compare256_rle(str1, str2);
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EXPECT_EQ(match_len, i);
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if (i < MAX_COMPARE_SIZE)
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str2[i] = 'a';
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}
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PREFIX(zcfree)(NULL, str2);
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}
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#define TEST_COMPARE256_RLE(name, func, support_flag) \
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TEST(compare256_rle, name) { \
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if (!support_flag) { \
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GTEST_SKIP(); \
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return; \
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} \
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compare256_rle_match_check(func); \
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}
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TEST_COMPARE256_RLE(8, compare256_rle_8, 1)
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TEST_COMPARE256_RLE(16, compare256_rle_16, 1)
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#if defined(HAVE_BUILTIN_CTZ)
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TEST_COMPARE256_RLE(32, compare256_rle_32, 1)
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#endif
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#if defined(HAVE_BUILTIN_CTZLL)
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TEST_COMPARE256_RLE(64, compare256_rle_64, 1)
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#endif
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