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//===-- Unittests for strsep ----------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "hdr/signal_macros.h"
#include "src/string/strsep.h"
#include "test/UnitTest/Test.h"
TEST(LlvmLibcStrsepTest, NullSrc) {
char *string = nullptr;
EXPECT_STREQ(LIBC_NAMESPACE::strsep(&string, ""), nullptr);
}
TEST(LlvmLibcStrsepTest, NoTokenFound) {
{
char s[] = "";
char *string = s;
EXPECT_STREQ(LIBC_NAMESPACE::strsep(&string, ""), nullptr);
EXPECT_TRUE(string == nullptr);
}
{
char s[] = "abcde";
char *string = s, *orig = s;
EXPECT_STREQ(LIBC_NAMESPACE::strsep(&string, ""), orig);
EXPECT_TRUE(string == nullptr);
}
{
char s[] = "abcde";
char *string = s, *orig = s;
EXPECT_STREQ(LIBC_NAMESPACE::strsep(&string, "fghijk"), orig);
EXPECT_TRUE(string == nullptr);
}
}
TEST(LlvmLibcStrsepTest, TokenFound) {
char s[] = "abacd";
char *string = s;
EXPECT_STREQ(LIBC_NAMESPACE::strsep(&string, "c"), "aba");
EXPECT_STREQ(string, "d");
}
TEST(LlvmLibcStrsepTest, DelimitersShouldNotBeIncludedInToken) {
char s[] = "__ab__:cd_:_ef_:_";
char *string = s;
const char *expected[] = {"", "", "ab", "", "", "cd", "",
"", "ef", "", "", "", nullptr};
for (int i = 0; expected[i]; i++) {
ASSERT_STREQ(LIBC_NAMESPACE::strsep(&string, "_:"), expected[i]);
}
}
TEST(LlvmLibcStrsepTest, SubsequentSearchesReturnNull) {
char s[] = "a";
char *string = s;
ASSERT_STREQ(LIBC_NAMESPACE::strsep(&string, ":"), "a");
ASSERT_EQ(LIBC_NAMESPACE::strsep(&string, ":"), nullptr);
ASSERT_EQ(LIBC_NAMESPACE::strsep(&string, ":"), nullptr);
}
TEST(LlvmLibcStrsepTest, TopBitSet) {
char top_bit_set_str[] = "hello\x80world";
char *p = top_bit_set_str;
ASSERT_STREQ(LIBC_NAMESPACE::strsep(&p, "\x80"), "hello");
ASSERT_STREQ(LIBC_NAMESPACE::strsep(&p, "\x80"), "world");
ASSERT_EQ(LIBC_NAMESPACE::strsep(&p, "\x80"), nullptr);
}
#if defined(LIBC_ADD_NULL_CHECKS)
TEST(LlvmLibcStrsepTest, CrashOnNullPtr) {
ASSERT_DEATH([]() { LIBC_NAMESPACE::strsep(nullptr, nullptr); },
WITH_SIGNAL(-1));
}
#endif // defined(LIBC_ADD_NULL_CHECKS)
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