cosmopolitan/test/libc/str/strchr_test.c

69 lines
3.1 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/str/str.h"
#include "libc/testlib/testlib.h"
TEST(strchr, blank) {
const char *const blank = "";
EXPECT_EQ(NULL, strchr(blank, '#'));
EXPECT_EQ(blank, strchr(blank, '\0'));
}
TEST(strchr, text) {
char buf[] = "hellothere";
EXPECT_STREQ("there", strchr(buf, 't'));
}
TEST(strchr, testsse) {
char buf[] = "hellohellohellohellohellohellohellohello"
"theretheretheretheretheretheretherethere";
EXPECT_STREQ("theretheretheretheretheretheretherethere", strchr(buf, 't'));
}
TEST(rawmemchr, text) {
char buf[] = "hellothere";
EXPECT_STREQ("there", rawmemchr(buf, 't'));
}
TEST(strchrnul, text) {
char buf[] = "hellothere";
EXPECT_STREQ("there", strchrnul(buf, 't'));
}
TEST(strchr, nulTerminator) {
char buf[] = "hellothere";
EXPECT_STREQ("", strchr(buf, '\0'));
}
TEST(rawmemchr, nulTerminator) {
char buf[] = "hellothere";
EXPECT_STREQ("", rawmemchr(buf, '\0'));
}
TEST(strchrnul, nulTerminator) {
char buf[] = "hellothere";
EXPECT_STREQ("", strchrnul(buf, '\0'));
}
TEST(strchr, notFound_returnsNul) {
char buf[] = "hellothere";
EXPECT_EQ(NULL, strchr(buf, 'z'));
}
TEST(strchrnul, notFound_returnsPointerToNulByte) {
char buf[] = "hi";
EXPECT_STREQ("", strchrnul(buf, 'z'));
EXPECT_EQ(&buf[2], strchrnul(buf, 'z'));
}