78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
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#include <stdio.h>
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#include "rom/miniz.h"
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#include "unity.h"
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#define DATASIZE (1024*64)
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TEST_CASE("Test miniz compression/decompression", "[miniz][ignore]")
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{
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int x;
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char b;
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char *inbuf, *outbuf;
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tdefl_compressor *comp;
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tinfl_decompressor *decomp;
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tdefl_status status;
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size_t inbytes = 0, outbytes = 0, inpos = 0, outpos = 0, compsz;
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printf("Allocating data buffer and filling it with semi-random data\n");
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inbuf = malloc(DATASIZE);
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TEST_ASSERT(inbuf != NULL);
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srand(0);
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for (x = 0; x < DATASIZE; x++) {
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inbuf[x] = (x & 1) ? rand() & 0xff : 0;
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}
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printf("Allocating compressor & outbuf (%d bytes)\n", sizeof(tdefl_compressor));
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comp = malloc(sizeof(tdefl_compressor));
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TEST_ASSERT(comp != NULL);
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outbuf = malloc(DATASIZE);
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TEST_ASSERT(outbuf != NULL);
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printf("Compressing...\n");
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status = tdefl_init(comp, NULL, NULL, TDEFL_WRITE_ZLIB_HEADER | 1500);
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TEST_ASSERT(status == TDEFL_STATUS_OKAY);
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while (inbytes != DATASIZE) {
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outbytes = DATASIZE - outpos;
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inbytes = DATASIZE - inpos;
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tdefl_compress(comp, &inbuf[inpos], &inbytes, &outbuf[outpos], &outbytes, TDEFL_FINISH);
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printf("...Compressed %d into %d bytes\n", inbytes, outbytes);
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inpos += inbytes; outpos += outbytes;
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}
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compsz = outpos;
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free(comp);
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//Kill inbuffer
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for (x = 0; x < DATASIZE; x++) {
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inbuf[x] = 0;
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}
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free(inbuf);
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inbuf = outbuf;
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outbuf = malloc(DATASIZE);
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TEST_ASSERT(outbuf != NULL);
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printf("Reinflating...\n");
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decomp = malloc(sizeof(tinfl_decompressor));
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TEST_ASSERT(decomp != NULL);
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tinfl_init(decomp);
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inpos = 0; outpos = 0;
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while (inbytes != compsz) {
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outbytes = DATASIZE - outpos;
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inbytes = compsz - inpos;
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tinfl_decompress(decomp, (const mz_uint8 *)&inbuf[inpos], &inbytes, (uint8_t *)outbuf, (mz_uint8 *)&outbuf[outpos], &outbytes, TINFL_FLAG_PARSE_ZLIB_HEADER);
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printf("...Decompressed %d into %d bytes\n", inbytes, outbytes);
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inpos += inbytes; outpos += outbytes;
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}
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printf("Checking if same...\n");
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srand(0);
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for (x = 0; x < DATASIZE; x++) {
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b = (x & 1) ? rand() & 0xff : 0;
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if (outbuf[x] != b) {
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printf("Pos %x: %hhx!=%hhx\n", x, outbuf[x], b);
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TEST_ASSERT(0);
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}
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}
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printf("Great Success!\n");
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free(inbuf);
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free(outbuf);
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free(decomp);
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}
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