cosmopolitan/test/libc/calls/pread_test.c
Justine Tunney 98909b1391 Fix more things
- Update a couple unicode data files
- Disable strace during logger calls
- SQLite now uses pread() / pwrite()
- pread() past EOF on NT now returns 0
- Make the NT mmap() and fork() code elegant
- Give NT a big performance boost with memory
- Add many more mmap() tests to prove it works
2022-03-24 00:12:29 -07:00

39 lines
2.4 KiB
C

/*-*- 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 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/sysv/consts/o.h"
#include "libc/testlib/testlib.h"
char testlib_enable_tmp_setup_teardown;
static int fd;
static char buf[8];
TEST(dog, testReadPastEof_returnsZero) {
EXPECT_NE(-1, (fd = open("a", O_RDWR | O_CREAT | O_TRUNC, 0644)));
EXPECT_EQ(0, pread(fd, buf, 8, 0));
EXPECT_EQ(0, close(fd));
}
TEST(dog, testReadOverlapsEof_returnsShortNumber) {
EXPECT_NE(-1, (fd = open("b", O_RDWR | O_CREAT | O_TRUNC, 0644)));
EXPECT_EQ(4, pwrite(fd, buf, 4, 0));
EXPECT_EQ(4, pread(fd, buf, 8, 0));
EXPECT_EQ(0, close(fd));
}