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/* test_deflate_copy.cc - Test deflateCopy() with small buffers */
#include "zbuild.h"
#ifdef ZLIB_COMPAT
# include "zlib.h"
#else
# include "zlib-ng.h"
#endif
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "deflate.h"
#include "test_shared.h"
#include <gtest/gtest.h>
TEST(deflate, copy) {
PREFIX3(stream) c_stream, c_stream_copy;
uint8_t compr[128];
z_size_t compr_len = sizeof(compr);
int err;
memset(&c_stream, 0, sizeof(c_stream));
memset(&c_stream_copy, 0, sizeof(c_stream_copy));
err = PREFIX(deflateInit)(&c_stream, Z_DEFAULT_COMPRESSION);
EXPECT_EQ(err, Z_OK);
c_stream.next_in = (z_const unsigned char *)hello;
c_stream.next_out = compr;
while (c_stream.total_in != hello_len && c_stream.total_out < compr_len) {
c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
err = PREFIX(deflate)(&c_stream, Z_NO_FLUSH);
EXPECT_EQ(err, Z_OK);
}
/* Finish the stream, still forcing small buffers: */
for (;;) {
c_stream.avail_out = 1;
err = PREFIX(deflate)(&c_stream, Z_FINISH);
if (err == Z_STREAM_END) break;
EXPECT_EQ(err, Z_OK);
}
err = PREFIX(deflateCopy)(&c_stream_copy, &c_stream);
EXPECT_EQ(err, Z_OK);
EXPECT_EQ(c_stream.state->status, c_stream_copy.state->status);
err = PREFIX(deflateEnd)(&c_stream);
EXPECT_EQ(err, Z_OK);
err = PREFIX(deflateEnd)(&c_stream_copy);
EXPECT_EQ(err, Z_OK);
}
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