1//===-- Unittests for strcat ----------------------------------------------===//
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/signal_macros.h"
10#include "src/string/strcat.h"
11#include "test/UnitTest/Test.h"
12
13TEST(LlvmLibcStrCatTest, EmptyDest) {
14 const char *abc = "abc";
15 char dest[4];
16
17 dest[0] = '\0';
18
19 char *result = LIBC_NAMESPACE::strcat(dest, abc);
20 ASSERT_EQ(dest, result);
21 ASSERT_STREQ(dest, result);
22 ASSERT_STREQ(dest, abc);
23}
24
25TEST(LlvmLibcStrCatTest, NonEmptyDest) {
26 const char *abc = "abc";
27 char dest[7];
28
29 dest[0] = 'x';
30 dest[1] = 'y';
31 dest[2] = 'z';
32 dest[3] = '\0';
33
34 char *result = LIBC_NAMESPACE::strcat(dest, abc);
35 ASSERT_EQ(dest, result);
36 ASSERT_STREQ(dest, result);
37 ASSERT_STREQ(dest, "xyzabc");
38}
39
40#if defined(LIBC_ADD_NULL_CHECKS) && !defined(LIBC_HAS_SANITIZER)
41
42TEST(LlvmLibcStrCatTest, CrashOnNullPtr) {
43 ASSERT_DEATH([]() { LIBC_NAMESPACE::strcat(nullptr, nullptr); },
44 WITH_SIGNAL(-1));
45}
46
47#endif // defined(LIBC_ADD_NULL_CHECKS) && !defined(LIBC_HAS_SANITIZER)
48

source code of libc/test/src/string/strcat_test.cpp