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//===-- Unittests for wmempcpy --------------------------------------------===//
//
// 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/wchar/wmempcpy.h"
#include "test/UnitTest/Test.h"
TEST(LlvmLibcWMempcpyTest, Simple) {
const wchar_t *src = L"12345";
wchar_t dest[10] = {};
void *result = LIBC_NAMESPACE::wmempcpy(dest, src, 6);
ASSERT_EQ(static_cast<wchar_t *>(result), dest + 6);
ASSERT_TRUE(dest[0] == src[0]);
ASSERT_TRUE(dest[1] == src[1]);
ASSERT_TRUE(dest[2] == src[2]);
ASSERT_TRUE(dest[3] == src[3]);
ASSERT_TRUE(dest[4] == src[4]);
ASSERT_TRUE(dest[5] == src[5]);
}
TEST(LlvmLibcWmempcpyTest, ZeroCount) {
const wchar_t *src = L"12345";
wchar_t dest[5] = {};
void *result = LIBC_NAMESPACE::wmempcpy(dest, src, 0);
ASSERT_EQ(static_cast<wchar_t *>(result), dest);
ASSERT_TRUE(dest[0] == 0);
ASSERT_TRUE(dest[1] == 0);
ASSERT_TRUE(dest[2] == 0);
ASSERT_TRUE(dest[3] == 0);
ASSERT_TRUE(dest[4] == 0);
}
TEST(LlvmLibcWMempcpyTest, BoundaryCheck) {
const wchar_t *src = L"12345";
wchar_t dest[4] = {};
void *result = LIBC_NAMESPACE::wmempcpy(dest + 1, src + 1, 2);
ASSERT_TRUE(dest[0] == 0);
ASSERT_TRUE(dest[1] == src[1]);
ASSERT_TRUE(dest[2] == src[2]);
ASSERT_TRUE(dest[3] == 0);
ASSERT_EQ(static_cast<wchar_t *>(result), dest + 3);
}
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