cosmopolitan/test/libc/stdio/fgets_test.c
Jōshin 394d998315
Fix vi modelines (#989)
At least in neovim, `│vi:` is not recognized as a modeline because it
has no preceding whitespace. After fixing this, opening a file yields
an error because `net` is not an option. (`noet`, however, is.)
2023-12-05 14:37:54 -08:00

63 lines
2.9 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set noet ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2021 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/mem/gc.internal.h"
#include "libc/mem/mem.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/testlib/ezbench.h"
#include "libc/testlib/hyperion.h"
#include "libc/testlib/testlib.h"
TEST(fgets, test) {
FILE *f;
char buf[29];
f = fmemopen(gc(strdup(kHyperion)), kHyperionSize, "r+");
ASSERT_STREQ("The fall of Hyperion - a Dre", fgets(buf, sizeof(buf), f));
ASSERT_STREQ("am\n", fgets(buf, sizeof(buf), f));
ASSERT_STREQ("John Keats\n", fgets(buf, sizeof(buf), f));
fclose(f);
}
TEST(fgets, eof) {
FILE *f;
char s[10];
char buf[] = "test";
ASSERT_NE(NULL, (f = fmemopen(buf, sizeof buf, "r")));
ASSERT_EQ(s, fgets(s, sizeof s, f));
ASSERT_EQ(0, strcmp(s, buf));
ASSERT_EQ(0, fgets(s, sizeof s, f));
ASSERT_EQ('t', s[0]);
ASSERT_EQ(0, fclose(f));
}
void Benchmark(void) {
FILE *f;
char *line;
char buf[512];
f = fmemopen(gc(strdup(kHyperion)), kHyperionSize, "r+");
for (;;) {
line = fgets(buf, sizeof(buf), f);
if (!line) break;
}
fclose(f);
}
BENCH(fgets, bench) {
EZBENCH2("fgets", donothing, Benchmark());
}