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https://github.com/GerbilSoft/zlib-ng.git
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57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
/* test_deflate_tune.cc - Test deflateTune() with small 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 "test_shared.h"
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#include <gtest/gtest.h>
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TEST(deflate, tune) {
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PREFIX3(stream) c_stream;
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uint8_t compr[128];
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z_size_t compr_len = sizeof(compr);
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int err;
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int good_length = 3;
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int max_lazy = 5;
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int nice_length = 18;
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int max_chain = 6;
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memset(&c_stream, 0, sizeof(c_stream));
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err = PREFIX(deflateInit)(&c_stream, Z_BEST_COMPRESSION);
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EXPECT_EQ(err, Z_OK);
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err = PREFIX(deflateTune)(&c_stream, good_length, max_lazy,nice_length, max_chain);
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EXPECT_EQ(err, Z_OK);
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c_stream.next_in = (z_const unsigned char *)hello;
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c_stream.next_out = compr;
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while (c_stream.total_in != hello_len && c_stream.total_out < compr_len) {
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c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
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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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}
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/* Finish the stream, still forcing small buffers: */
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for (;;) {
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c_stream.avail_out = 1;
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err = PREFIX(deflate)(&c_stream, Z_FINISH);
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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(deflateEnd)(&c_stream);
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EXPECT_EQ(err, Z_OK);
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}
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