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//===-- Unittests for strndup ---------------------------------------------===//
//
// 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 "src/string/strndup.h"
#include "test/UnitTest/Test.h"
TEST(LlvmLibcstrndupTest, EmptyString) {
const char *empty = "";
char *result = LIBC_NAMESPACE::strndup(empty, 1);
ASSERT_NE(result, static_cast<char *>(nullptr));
ASSERT_NE(empty, const_cast<const char *>(result));
ASSERT_STREQ(empty, result);
::free(result);
}
TEST(LlvmLibcstrndupTest, AnyString) {
const char *abc = "abc";
char *result = LIBC_NAMESPACE::strndup(abc, 3);
ASSERT_NE(result, static_cast<char *>(nullptr));
ASSERT_NE(abc, const_cast<const char *>(result));
ASSERT_STREQ(abc, result);
::free(result);
result = LIBC_NAMESPACE::strndup(abc, 1);
ASSERT_NE(result, static_cast<char *>(nullptr));
ASSERT_NE(abc, const_cast<const char *>(result));
ASSERT_STREQ("a", result);
::free(result);
result = LIBC_NAMESPACE::strndup(abc, 10);
ASSERT_NE(result, static_cast<char *>(nullptr));
ASSERT_NE(abc, const_cast<const char *>(result));
ASSERT_STREQ(abc, result);
::free(result);
}
TEST(LlvmLibcstrndupTest, NullPtr) {
char *result = LIBC_NAMESPACE::strndup(nullptr, 0);
ASSERT_EQ(result, static_cast<char *>(nullptr));
}
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