mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-24 22:32:28 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Initial import

Browse source
This commit is contained in:
Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
14915 changed files with 590219 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

96
test/libc/nexgen32e/lz4decode_test.c Normal file
View file

@ -0,0 +1,96 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/safemacros.h"
#include "libc/calls/calls.h"
#include "libc/log/check.h"
#include "libc/nexgen32e/kompressor.h"
#include "libc/nexgen32e/lz4.h"
#include "libc/runtime/ezmap.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/testlib/testlib.h"
TEST(lz4, decompress_emptyStringWithoutChecksum) {
/* lz4 -9 --content-size --no-frame-crc /tmp/empty - | hexdump -C */
static char kLz4Data[] = {0x04, 0x22, 0x4d, 0x18, 0x60, 0x40,
0x82, 0x00, 0x00, 0x00, 0x00};
char *src = memcpy(tmalloc(sizeof(kLz4Data)), kLz4Data, sizeof(kLz4Data));
char *dst = tmalloc(1);
*dst = 'z';
ASSERT_EQ(dst, lz4decode(dst, src));
ASSERT_EQ('z', *dst);
tfree(dst);
tfree(src);
}
TEST(lz4, decompress_oneLetterWithoutChecksum) {
/* printf a >oneletter */
/* lz4 -9 --content-size --no-frame-crc oneletter /dev/stdout | hexdump -C */
static char kLz4Data[] = {0x04, 0x22, 0x4d, 0x18, 0x68, 0x40, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x01,
0x00, 0x00, 0x80, 0x61, 0x00, 0x00, 0x00, 0x00};
char *src = memcpy(tmalloc(sizeof(kLz4Data)), kLz4Data, sizeof(kLz4Data));
char *dst = tmalloc(1);
ASSERT_EQ(dst + 1, lz4decode(dst, src));
ASSERT_EQ('a', *dst);
tfree(dst);
tfree(src);
}
TEST(lz4, decompress_runLengthDecode) {
/* printf aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >/tmp/a */
/* lz4 -9 --content-size --no-frame-crc /tmp/a - | hexdump -vC */
static char kLz4Data[] = {
0x04, 0x22, 0x4d, 0x18, 0x68, 0x40, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x30, 0x0b, 0x00, 0x00, 0x00, 0x1f, 0x61, 0x01, 0x00, 0x07,
0x50, 0x61, 0x61, 0x61, 0x61, 0x61, 0x00, 0x00, 0x00, 0x00};
char *src = memcpy(tmalloc(sizeof(kLz4Data)), kLz4Data, sizeof(kLz4Data));
const char *want = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
char *dst = tmalloc(strlen(want));
ASSERT_EQ(dst + strlen(want), lz4decode(dst, src));
ASSERT_STREQN(want, dst, strlen(want));
tfree(dst);
tfree(src);
}
TEST(lz4, zoneFileGmt) {
if (!fileexists("usr/share/zoneinfo.dict.lz4")) return;
struct MappedFile dict, gmt;
CHECK_NE(-1, mapfileread("usr/share/zoneinfo.dict.lz4", &dict));
CHECK_NE(-1, mapfileread("usr/share/zoneinfo/GMT.lz4", &gmt));
size_t mapsize, gmtsize;
char *mapping, *gmtdata;
lz4decode((gmtdata = lz4decode(
(mapping = mapanon(
(mapsize = roundup(
LZ4_FRAME_BLOCKCONTENTSIZE(lz4check(dict.addr)) +
(gmtsize = LZ4_FRAME_BLOCKCONTENTSIZE(
lz4check(gmt.addr))),
FRAMESIZE)))),
dict.addr)),
gmt.addr);
ASSERT_BINEQ(
u"TZif2                  ☺   ☺           ☺   ♦      GMT   TZif2   "
u"               ☺   ☺       ☺   ☺   ♦°              GMT   ◙GMT0◙",
gmtdata);
munmap(mapping, mapsize);
unmapfile(&dict);
unmapfile(&gmt);
}