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//===-- Unittests for strxfrm ---------------------------------------------===//
//
// 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/string/strxfrm.h"
#include "test/UnitTest/Test.h"
#include "src/string/string_utils.h"
// TODO: Add more comprehensive tests once locale support is added.
TEST(LlvmLibcStrxfrmTest, SimpleTestSufficientlySizedN) {
const char *src = "abc";
const size_t n = 5;
char dest[n];
size_t result = LIBC_NAMESPACE::strxfrm(dest, src, n);
ASSERT_EQ(result, LIBC_NAMESPACE::internal::string_length(src));
ASSERT_STREQ(dest, src);
}
TEST(LlvmLibcStrxfrmTest, SimpleTestExactSizedN) {
const char *src = "abc";
const size_t n = 4;
char dest[n];
size_t result = LIBC_NAMESPACE::strxfrm(dest, src, n);
ASSERT_EQ(result, LIBC_NAMESPACE::internal::string_length(src));
ASSERT_STREQ(dest, src);
}
TEST(LlvmLibcStrxfrmTest, SimpleTestInsufficientlySizedN) {
const char *src = "abc";
const size_t n = 3;
// Verify strxfrm does not modify dest if src len >= n
char dest[n] = {'x', 'x', '\0'};
size_t result = LIBC_NAMESPACE::strxfrm(dest, src, n);
ASSERT_GE(result, n);
ASSERT_STREQ(dest, "xx");
}
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