libc/test/src/wchar/btowc_test.cpp

   1 //===-- Unittests for btowc ---------------------------------------------===//
   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 "hdr/wchar_macros.h" // for WEOF
  10 #include "src/wchar/btowc.h"
  11 #include "test/UnitTest/Test.h"
  12
  13 TEST(LlvmLibcBtowc, DefaultLocale) {
  14   // Loops through all characters, verifying that ascii returns itself and
  15   // everything else returns WEOF.
  16   for (int c = 0; c < 255; ++c) {
  17     if (c < 128)
  18       EXPECT_EQ(LIBC_NAMESPACE::btowc(c), static_cast<wint_t>(c));
  19     else
  20       EXPECT_EQ(LIBC_NAMESPACE::btowc(c), WEOF);
  21   }
  22 }