| // Copyright 2022 The Wuffs Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // ---------------- |
| |
| /* |
| This test program is typically run indirectly, by the "wuffs test" or "wuffs |
| bench" commands. These commands take an optional "-mimic" flag to check that |
| Wuffs' output mimics (i.e. exactly matches) other libraries' output, such as |
| giflib for GIF, libpng for PNG, etc. |
| |
| To manually run this test: |
| |
| for CC in clang gcc; do |
| $CC -std=c99 -Wall -Werror bzip2.c && ./a.out |
| rm -f a.out |
| done |
| |
| Each edition should print "PASS", amongst other information, and exit(0). |
| |
| Add the "wuffs mimic cflags" (everything after the colon below) to the C |
| compiler flags (after the .c file) to run the mimic tests. |
| |
| To manually run the benchmarks, replace "-Wall -Werror" with "-O3" and replace |
| the first "./a.out" with "./a.out -bench". Combine these changes with the |
| "wuffs mimic cflags" to run the mimic benchmarks. |
| */ |
| |
| // ¿ wuffs mimic cflags: -DWUFFS_MIMIC -ldeflate -lz |
| |
| // Wuffs ships as a "single file C library" or "header file library" as per |
| // https://github.com/nothings/stb/blob/master/docs/stb_howto.txt |
| // |
| // To use that single file as a "foo.c"-like implementation, instead of a |
| // "foo.h"-like header, #define WUFFS_IMPLEMENTATION before #include'ing or |
| // compiling it. |
| #define WUFFS_IMPLEMENTATION |
| |
| // Defining the WUFFS_CONFIG__MODULE* macros are optional, but it lets users of |
| // release/c/etc.c choose which parts of Wuffs to build. That file contains the |
| // entire Wuffs standard library, implementing a variety of codecs and file |
| // formats. Without this macro definition, an optimizing compiler or linker may |
| // very well discard Wuffs code for unused codecs, but listing the Wuffs |
| // modules we use makes that process explicit. Preprocessing means that such |
| // code simply isn't compiled. |
| #define WUFFS_CONFIG__MODULES |
| #define WUFFS_CONFIG__MODULE__BASE |
| #define WUFFS_CONFIG__MODULE__BZIP2 |
| |
| // If building this program in an environment that doesn't easily accommodate |
| // relative includes, you can use the script/inline-c-relative-includes.go |
| // program to generate a stand-alone C file. |
| #include "../../../release/c/wuffs-unsupported-snapshot.c" |
| #include "../testlib/testlib.c" |
| #ifdef WUFFS_MIMIC |
| // No mimic library. |
| #endif |
| |
| // ---------------- Golden Tests |
| |
| golden_test g_bzip2_256_bytes_gt = { |
| .want_filename = "test/data/256.bytes", |
| .src_filename = "test/data/256.bytes.bz2", |
| }; |
| |
| golden_test g_bzip2_midsummer_gt = { |
| .want_filename = "test/data/midsummer.txt", |
| .src_filename = "test/data/midsummer.txt.bz2", |
| }; |
| |
| golden_test g_bzip2_pi_gt = { |
| .want_filename = "test/data/pi.txt", |
| .src_filename = "test/data/pi.txt.bz2", |
| }; |
| |
| // ---------------- Bzip2 Tests |
| |
| const char* // |
| test_wuffs_bzip2_decode_interface() { |
| CHECK_FOCUS(__func__); |
| wuffs_bzip2__decoder dec; |
| CHECK_STATUS("initialize", |
| wuffs_bzip2__decoder__initialize( |
| &dec, sizeof dec, WUFFS_VERSION, |
| WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED)); |
| return do_test__wuffs_base__io_transformer( |
| wuffs_bzip2__decoder__upcast_as__wuffs_base__io_transformer(&dec), |
| "test/data/romeo.txt.bz2", 0, SIZE_MAX, 942, 0x0A); |
| } |
| |
| const char* // |
| wuffs_bzip2_decode(wuffs_base__io_buffer* dst, |
| wuffs_base__io_buffer* src, |
| uint32_t wuffs_initialize_flags, |
| uint64_t wlimit, |
| uint64_t rlimit) { |
| wuffs_bzip2__decoder dec; |
| CHECK_STATUS("initialize", |
| wuffs_bzip2__decoder__initialize(&dec, sizeof dec, WUFFS_VERSION, |
| wuffs_initialize_flags)); |
| |
| while (true) { |
| wuffs_base__io_buffer limited_dst = make_limited_writer(*dst, wlimit); |
| wuffs_base__io_buffer limited_src = make_limited_reader(*src, rlimit); |
| |
| wuffs_base__status status = wuffs_bzip2__decoder__transform_io( |
| &dec, &limited_dst, &limited_src, g_work_slice_u8); |
| |
| dst->meta.wi += limited_dst.meta.wi; |
| src->meta.ri += limited_src.meta.ri; |
| |
| if (((wlimit < UINT64_MAX) && |
| (status.repr == wuffs_base__suspension__short_write)) || |
| ((rlimit < UINT64_MAX) && |
| (status.repr == wuffs_base__suspension__short_read))) { |
| continue; |
| } |
| return status.repr; |
| } |
| } |
| |
| const char* // |
| test_wuffs_bzip2_decode_256_bytes() { |
| CHECK_FOCUS(__func__); |
| return do_test_io_buffers(wuffs_bzip2_decode, &g_bzip2_256_bytes_gt, |
| UINT64_MAX, UINT64_MAX); |
| } |
| |
| const char* // |
| test_wuffs_bzip2_decode_midsummer() { |
| CHECK_FOCUS(__func__); |
| return do_test_io_buffers(wuffs_bzip2_decode, &g_bzip2_midsummer_gt, |
| UINT64_MAX, UINT64_MAX); |
| } |
| |
| const char* // |
| test_wuffs_bzip2_decode_pi() { |
| CHECK_FOCUS(__func__); |
| return do_test_io_buffers(wuffs_bzip2_decode, &g_bzip2_pi_gt, UINT64_MAX, |
| UINT64_MAX); |
| } |
| |
| // ---------------- Mimic Tests |
| |
| #ifdef WUFFS_MIMIC |
| |
| // No mimic tests. |
| |
| #endif // WUFFS_MIMIC |
| |
| // ---------------- Bzip2 Benches |
| |
| const char* // |
| bench_wuffs_bzip2_decode_10k() { |
| CHECK_FOCUS(__func__); |
| return do_bench_io_buffers( |
| wuffs_bzip2_decode, |
| WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED, tcounter_dst, |
| &g_bzip2_midsummer_gt, UINT64_MAX, UINT64_MAX, 300); |
| } |
| |
| const char* // |
| bench_wuffs_bzip2_decode_100k() { |
| CHECK_FOCUS(__func__); |
| return do_bench_io_buffers( |
| wuffs_bzip2_decode, |
| WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED, tcounter_dst, |
| &g_bzip2_pi_gt, UINT64_MAX, UINT64_MAX, 30); |
| } |
| |
| // ---------------- Mimic Benches |
| |
| #ifdef WUFFS_MIMIC |
| |
| // No mimic benches. |
| |
| #endif // WUFFS_MIMIC |
| |
| // ---------------- Manifest |
| |
| proc g_tests[] = { |
| |
| test_wuffs_bzip2_decode_256_bytes, |
| test_wuffs_bzip2_decode_interface, |
| test_wuffs_bzip2_decode_midsummer, |
| test_wuffs_bzip2_decode_pi, |
| |
| #ifdef WUFFS_MIMIC |
| |
| // No mimic tests. |
| |
| #endif // WUFFS_MIMIC |
| |
| NULL, |
| }; |
| |
| proc g_benches[] = { |
| |
| bench_wuffs_bzip2_decode_10k, |
| bench_wuffs_bzip2_decode_100k, |
| |
| #ifdef WUFFS_MIMIC |
| |
| // No mimic benches. |
| |
| #endif // WUFFS_MIMIC |
| |
| NULL, |
| }; |
| |
| int // |
| main(int argc, char** argv) { |
| g_proc_package_name = "std/bzip2"; |
| return test_main(argc, argv, g_tests, g_benches); |
| } |