cosmopolitan/test/libc/stdio/getdelim_test.c
Jōshin e16a7d8f3b
flip et / noet in modelines
`et` means `expandtab`.

```sh
rg 'vi: .* :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\)  :vi/vi: \1 xoet\2:vi/'
rg 'vi: .*  :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2  :vi/'
rg 'vi: .*  :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/'
```
2023-12-07 22:17:11 -05:00

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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 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/assert.h"
#include "libc/log/libfatal.internal.h"
#include "libc/mem/mem.h"
#include "libc/runtime/symbols.internal.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"
#include "libc/x/x.h"
void SetUpOnce(void) {
testlib_enable_tmp_setup_teardown();
}
TEST(getline, testEmpty) {
FILE *f = fmemopen("", 0, "r+");
char *line = NULL;
size_t linesize = 0;
EXPECT_EQ(-1, getline(&line, &linesize, f));
EXPECT_TRUE(feof(f));
EXPECT_FALSE(ferror(f));
EXPECT_EQ(0, fclose(f));
free(line);
}
TEST(getline, testOneWithoutLineFeed) {
FILE *f = fmemopen("hello", 5, "r+");
char *line = NULL;
size_t linesize = 0;
ASSERT_EQ(5, getline(&line, &linesize, f));
EXPECT_STREQ("hello", line);
EXPECT_TRUE(feof(f));
EXPECT_FALSE(ferror(f));
ASSERT_EQ(-1, getline(&line, &linesize, f));
EXPECT_EQ(0, fclose(f));
free(line);
}
TEST(getline, testTwoLines) {
const char *s = "hello\nthere\n";
FILE *f = fmemopen((void *)s, strlen(s), "r+");
char *line = NULL;
size_t linesize = 0;
ASSERT_EQ(6, getline(&line, &linesize, f));
EXPECT_STREQ("hello\n", line);
EXPECT_FALSE(feof(f) | ferror(f));
ASSERT_EQ(6, getline(&line, &linesize, f));
EXPECT_STREQ("there\n", line);
ASSERT_EQ(-1, getline(&line, &linesize, f));
EXPECT_STREQ("", line);
EXPECT_EQ(0, fclose(f));
free(line);
}
TEST(getline, testBinaryLine_countExcludesOnlyTheBonusNul) {
const char s[] = "he\0\3o\n";
FILE *f = fmemopen((void *)s, sizeof(s), "r+");
char *line = NULL;
size_t linesize = 0;
ASSERT_EQ(6, getline(&line, &linesize, f));
EXPECT_BINEQ(u"he ♥o◙ ", line);
fclose(f);
free(line);
}
void WriteHyperionFile(void) {
FILE *f;
ASSERT_NE(NULL, (f = fopen("hyperion.txt", "w")));
EXPECT_EQ(1, fwrite(kHyperion, kHyperionSize, 1, f));
EXPECT_NE(-1, fclose(f));
}
void ReadHyperionLines(void) {
FILE *f;
ssize_t rc;
char *data = NULL;
size_t size = 0;
char *line = NULL;
size_t linesize = 0;
ASSERT_NE(NULL, (f = fopen("hyperion.txt", "r")));
for (;;) {
rc = getline(&line, &linesize, f);
if (rc == -1) break;
data = xrealloc(data, size + rc);
memcpy(data + size, line, rc);
size += rc;
}
EXPECT_TRUE(feof(f));
ASSERT_EQ(kHyperionSize, size);
EXPECT_EQ(0, memcmp(kHyperion, data, size));
EXPECT_NE(-1, fclose(f));
free(line);
free(data);
}
TEST(getline, lotsOfLines_roundTrips) {
WriteHyperionFile();
ReadHyperionLines();
}
BENCH(getline, bench) {
WriteHyperionFile();
EZBENCH2("getline", donothing, ReadHyperionLines());
}