1 | //===-- Unittests for strcpy ----------------------------------------------===// |
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/strcpy.h" |
11 | #include "test/UnitTest/Test.h" |
12 | |
13 | TEST(LlvmLibcStrCpyTest, EmptySrc) { |
14 | const char *empty = "" ; |
15 | char dest[4] = {'a', 'b', 'c', '\0'}; |
16 | |
17 | char *result = LIBC_NAMESPACE::strcpy(dest, empty); |
18 | ASSERT_EQ(dest, result); |
19 | ASSERT_STREQ(dest, result); |
20 | ASSERT_STREQ(dest, empty); |
21 | } |
22 | |
23 | TEST(LlvmLibcStrCpyTest, EmptyDest) { |
24 | const char *abc = "abc" ; |
25 | char dest[4]; |
26 | |
27 | char *result = LIBC_NAMESPACE::strcpy(dest, abc); |
28 | ASSERT_EQ(dest, result); |
29 | ASSERT_STREQ(dest, result); |
30 | ASSERT_STREQ(dest, abc); |
31 | } |
32 | |
33 | TEST(LlvmLibcStrCpyTest, OffsetDest) { |
34 | const char *abc = "abc" ; |
35 | char dest[7]; |
36 | |
37 | dest[0] = 'x'; |
38 | dest[1] = 'y'; |
39 | dest[2] = 'z'; |
40 | |
41 | char *result = LIBC_NAMESPACE::strcpy(dest + 3, abc); |
42 | ASSERT_EQ(dest + 3, result); |
43 | ASSERT_STREQ(dest + 3, result); |
44 | ASSERT_STREQ(dest, "xyzabc" ); |
45 | } |
46 | |
47 | #if defined(LIBC_ADD_NULL_CHECKS) && !defined(LIBC_HAS_SANITIZER) |
48 | |
49 | TEST(LlvmLibcStrCpyTest, CrashOnNullPtr) { |
50 | ASSERT_DEATH([]() { LIBC_NAMESPACE::strcpy(nullptr, nullptr); }, |
51 | WITH_SIGNAL(-1)); |
52 | } |
53 | |
54 | #endif // defined(LIBC_ADD_NULL_CHECKS) && !defined(LIBC_HAS_SANITIZER) |
55 | |