libc/test/src/string/strerror_test.cpp

   1 //===-- Unittests for strerror --------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "src/__support/StringUtil/platform_errors.h"
  10 #include "src/__support/macros/properties/architectures.h"
  11 #include "src/string/strerror.h"
  12 #include "test/UnitTest/Test.h"
  13
  14 TEST(LlvmLibcStrErrorTest, KnownErrors) {
  15   ASSERT_STREQ(LIBC_NAMESPACE::strerror(0), "Success");
  16
  17   for (auto [i, msg] : LIBC_NAMESPACE::PLATFORM_ERRORS)
  18     EXPECT_STREQ(LIBC_NAMESPACE::strerror(static_cast<int>(i)), msg.begin());
  19 }
  20
  21 TEST(LlvmLibcStrErrorTest, UnknownErrors) {
  22   ASSERT_STREQ(LIBC_NAMESPACE::strerror(-1), "Unknown error -1");
  23   ASSERT_STREQ(LIBC_NAMESPACE::strerror(134), "Unknown error 134");
  24   ASSERT_STREQ(LIBC_NAMESPACE::strerror(2147483647),
  25                "Unknown error 2147483647");
  26   ASSERT_STREQ(LIBC_NAMESPACE::strerror(-2147483648),
  27                "Unknown error -2147483648");
  28 }