mirror of
https://github.com/GerbilSoft/zlib-ng.git
synced 2025-06-18 11:35:35 -04:00
88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
/* test_large_buffers.cc - Test deflate() and inflate() with large buffers */
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#include "zbuild.h"
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#ifdef ZLIB_COMPAT
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# include "zlib.h"
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#else
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# include "zlib-ng.h"
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#endif
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <gtest/gtest.h>
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#include "test_shared.h"
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#define COMPR_BUFFER_SIZE (48 * 1024)
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#define UNCOMPR_BUFFER_SIZE (32 * 1024)
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#define UNCOMPR_RAND_SIZE (8 * 1024)
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TEST(deflate, large_buffers) {
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PREFIX3(stream) c_stream, d_stream;
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uint8_t *compr, *uncompr;
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uint32_t compr_len, uncompr_len;
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int32_t i;
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time_t now;
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int err;
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memset(&c_stream, 0, sizeof(c_stream));
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memset(&d_stream, 0, sizeof(d_stream));
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compr = (uint8_t *)calloc(1, COMPR_BUFFER_SIZE);
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ASSERT_TRUE(compr != NULL);
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uncompr = (uint8_t *)calloc(1, UNCOMPR_BUFFER_SIZE);
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ASSERT_TRUE(uncompr != NULL);
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compr_len = COMPR_BUFFER_SIZE;
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uncompr_len = UNCOMPR_BUFFER_SIZE;
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srand((unsigned)time(&now));
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for (i = 0; i < UNCOMPR_RAND_SIZE; i++)
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uncompr[i] = (uint8_t)(rand() % 256);
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err = PREFIX(deflateInit)(&c_stream, Z_DEFAULT_COMPRESSION);
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EXPECT_EQ(err, Z_OK);
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c_stream.next_out = compr;
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c_stream.avail_out = compr_len;
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c_stream.next_in = uncompr;
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c_stream.avail_in = uncompr_len;
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err = PREFIX(deflate)(&c_stream, Z_NO_FLUSH);
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EXPECT_EQ(err, Z_OK);
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EXPECT_EQ(c_stream.avail_in, 0);
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err = PREFIX(deflate)(&c_stream, Z_FINISH);
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EXPECT_EQ(err, Z_STREAM_END);
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err = PREFIX(deflateEnd)(&c_stream);
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EXPECT_EQ(err, Z_OK);
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d_stream.next_in = compr;
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d_stream.avail_in = compr_len;
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d_stream.next_out = uncompr;
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err = PREFIX(inflateInit)(&d_stream);
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EXPECT_EQ(err, Z_OK);
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for (;;) {
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d_stream.next_out = uncompr; /* discard the output */
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d_stream.avail_out = uncompr_len;
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err = PREFIX(inflate)(&d_stream, Z_NO_FLUSH);
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if (err == Z_STREAM_END) break;
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EXPECT_EQ(err, Z_OK);
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}
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err = PREFIX(inflateEnd)(&d_stream);
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EXPECT_EQ(err, Z_OK);
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EXPECT_EQ(d_stream.total_out, uncompr_len);
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free(compr);
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free(uncompr);
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}
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