79 lines
3.1 KiB
C
79 lines
3.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include "pyzlib.h"
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int main(void)
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{
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printf("=== Full Self-Implemented zlib Test ===\n\n");
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printf("1. Adler-32:\n");
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unsigned long a = zlib_adler32((const unsigned char *)"Hello", 5, 1);
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printf(" adler32(\"Hello\") = 0x%08lX\n", a);
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printf("\n2. CRC-32:\n");
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unsigned long c = zlib_crc32((const unsigned char *)"Hello", 5, 0);
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printf(" crc32(\"Hello\") = 0x%08lX\n", c);
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const char *tests[] = {"Hello", "Hello, World!", "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", ""};
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int levels[] = {2, 6, 0};
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for (int t = 0; t < 4; t++) {
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const char *input = tests[t];
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size_t input_len = strlen(input);
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printf("\n--- Test: \"%s\" (%zu bytes) ---\n", input_len > 0 ? input : "(empty)", input_len);
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for (int li = 0; li < 3; li++) {
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int level = levels[li];
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printf("\n Level %d, zlib format:\n", level);
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size_t comp_len = 0;
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unsigned char *comp = zlib_compress((const unsigned char *)input, input_len,
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level, MAX_WBITS, &comp_len);
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if (comp) {
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printf(" Compressed: %zu bytes\n", comp_len);
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size_t dec_len = 0;
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unsigned char *dec = zlib_decompress(comp, comp_len, MAX_WBITS, DEF_BUF_SIZE, &dec_len);
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if (dec) {
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int match = (dec_len == input_len && memcmp(dec, input, dec_len) == 0);
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printf(" Decompressed: %zu bytes, Match: %s\n", dec_len, match ? "YES" : "NO");
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if (!match) {
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printf(" Expected: \"%s\"\n", input_len > 0 ? input : "(empty)");
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printf(" Got: \"%.*s\"\n", (int)dec_len, (char *)dec);
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}
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free(dec);
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} else {
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printf(" Decompress FAILED: %s (code %d)\n", zlib_get_error(), zlib_get_error_code());
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}
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free(comp);
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} else {
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printf(" Compress FAILED: %s (code %d)\n", zlib_get_error(), zlib_get_error_code());
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}
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}
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}
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printf("\n3. Raw deflate:\n");
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{
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const char *input = "Raw deflate test";
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size_t comp_len = 0;
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unsigned char *comp = zlib_compress((const unsigned char *)input, strlen(input),
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Z_DEFAULT_COMPRESSION, -MAX_WBITS, &comp_len);
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if (comp) {
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printf(" Compressed: %zu bytes\n", comp_len);
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size_t dec_len = 0;
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unsigned char *dec = zlib_decompress(comp, comp_len, -MAX_WBITS, DEF_BUF_SIZE, &dec_len);
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if (dec) {
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printf(" Decompressed: \"%.*s\" %s\n", (int)dec_len, (char *)dec,
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dec_len == strlen(input) && memcmp(dec, input, dec_len) == 0 ? "OK" : "FAIL");
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free(dec);
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} else {
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printf(" Decompress FAILED: %s\n", zlib_get_error());
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}
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free(comp);
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}
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}
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printf("\nDone.\n");
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return 0;
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}
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