mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
da36e7e256
Buffering now has optimal performance, bugs have been fixed, and some missing apis have been introduced. This implementation is also now more production worthy since it's less brittle now in terms of system errors. That's going to help redbean since lua i/o is all based on stdio. See #97
117 lines
4.2 KiB
C
117 lines
4.2 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 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/bits/bits.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"
|
||
#include "libc/x/x.h"
|
||
|
||
char 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(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(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")));
|
||
while ((rc = getline(&line, &linesize, f)) != -1) {
|
||
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());
|
||
}
|