| /* test_deflate_tune.cc - Test deflateTune() 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 "test_shared.h" |
| |
| #include <gtest/gtest.h> |
| |
| TEST(deflate, tune) { |
| PREFIX3(stream) c_stream; |
| uint8_t compr[128]; |
| z_size_t compr_len = sizeof(compr); |
| int err; |
| int good_length = 3; |
| int max_lazy = 5; |
| int nice_length = 18; |
| int max_chain = 6; |
| |
| memset(&c_stream, 0, sizeof(c_stream)); |
| |
| err = PREFIX(deflateInit)(&c_stream, Z_BEST_COMPRESSION); |
| EXPECT_EQ(err, Z_OK); |
| |
| err = PREFIX(deflateTune)(&c_stream, good_length, max_lazy,nice_length, max_chain); |
| 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(deflateEnd)(&c_stream); |
| EXPECT_EQ(err, Z_OK); |
| } |