| //===-- Unittests for strerror --------------------------------------------===// |
| // |
| // 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/strerror_r.h" |
| #include "test/UnitTest/Test.h" |
| |
| #include <stddef.h> |
| |
| // This tests the gnu variant of strerror_r (which returns a char*). |
| TEST(LlvmLibcStrErrorRTest, GnuVariantTests) { |
| const size_t BUFF_SIZE = 128; |
| char buffer[BUFF_SIZE]; |
| buffer[0] = '\0'; |
| // If strerror_r returns a constant string, then it shouldn't affect the |
| // buffer. |
| ASSERT_STREQ(LIBC_NAMESPACE::strerror_r(0, buffer, BUFF_SIZE), "Success"); |
| ASSERT_EQ(buffer[0], '\0'); |
| |
| // Else it should write the result to the provided buffer. |
| ASSERT_STREQ(LIBC_NAMESPACE::strerror_r(-1, buffer, BUFF_SIZE), |
| "Unknown error -1"); |
| ASSERT_STREQ(buffer, "Unknown error -1"); |
| } |