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//===-- Unittests for mbsinit ---------------------------------------------===//
//
// 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 "hdr/types/wchar_t.h"
#include "src/string/memset.h"
#include "src/wchar/mbrtowc.h"
#include "src/wchar/mbsinit.h"
#include "test/UnitTest/Test.h"
TEST(LlvmLibcMBSInitTest, EmptyState) {
mbstate_t ps;
LIBC_NAMESPACE::memset(&ps, 0, sizeof(mbstate_t));
ASSERT_NE(LIBC_NAMESPACE::mbsinit(&ps), 0);
ASSERT_NE(LIBC_NAMESPACE::mbsinit(nullptr), 0);
}
TEST(LlvmLibcMBSInitTest, ConversionTest) {
const char *src = "\xf0\x9f\xa4\xa3"; // 4 byte emoji
wchar_t dest[2];
mbstate_t ps;
LIBC_NAMESPACE::memset(&ps, 0, sizeof(mbstate_t));
ASSERT_NE(LIBC_NAMESPACE::mbsinit(&ps), 0);
LIBC_NAMESPACE::mbrtowc(dest, src, 2, &ps); // partial conversion
ASSERT_EQ(LIBC_NAMESPACE::mbsinit(&ps), 0);
LIBC_NAMESPACE::mbrtowc(dest, src + 2, 2, &ps); // complete conversion
ASSERT_NE(LIBC_NAMESPACE::mbsinit(&ps), 0); // state should be reset now
}
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