34 lines · cpp
1//===-- Unittests for mbsinit ---------------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "hdr/types/wchar_t.h"10#include "src/string/memset.h"11#include "src/wchar/mbrtowc.h"12#include "src/wchar/mbsinit.h"13#include "test/UnitTest/Test.h"14 15TEST(LlvmLibcMBSInitTest, EmptyState) {16 mbstate_t ps;17 LIBC_NAMESPACE::memset(&ps, 0, sizeof(mbstate_t));18 ASSERT_NE(LIBC_NAMESPACE::mbsinit(&ps), 0);19 ASSERT_NE(LIBC_NAMESPACE::mbsinit(nullptr), 0);20}21 22TEST(LlvmLibcMBSInitTest, ConversionTest) {23 const char *src = "\xf0\x9f\xa4\xa3"; // 4 byte emoji24 wchar_t dest[2];25 mbstate_t ps;26 LIBC_NAMESPACE::memset(&ps, 0, sizeof(mbstate_t));27 28 ASSERT_NE(LIBC_NAMESPACE::mbsinit(&ps), 0);29 LIBC_NAMESPACE::mbrtowc(dest, src, 2, &ps); // partial conversion30 ASSERT_EQ(LIBC_NAMESPACE::mbsinit(&ps), 0);31 LIBC_NAMESPACE::mbrtowc(dest, src + 2, 2, &ps); // complete conversion32 ASSERT_NE(LIBC_NAMESPACE::mbsinit(&ps), 0); // state should be reset now33}34