1 | //===-- Unittests for strndup ---------------------------------------------===// |
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 "src/string/strndup.h" |
10 | #include "test/UnitTest/Test.h" |
11 | |
12 | TEST(LlvmLibcstrndupTest, EmptyString) { |
13 | const char *empty = "" ; |
14 | |
15 | char *result = LIBC_NAMESPACE::strndup(empty, 1); |
16 | ASSERT_NE(result, static_cast<char *>(nullptr)); |
17 | ASSERT_NE(empty, const_cast<const char *>(result)); |
18 | ASSERT_STREQ(empty, result); |
19 | ::free(result); |
20 | } |
21 | |
22 | TEST(LlvmLibcstrndupTest, AnyString) { |
23 | const char *abc = "abc" ; |
24 | |
25 | char *result = LIBC_NAMESPACE::strndup(abc, 3); |
26 | |
27 | ASSERT_NE(result, static_cast<char *>(nullptr)); |
28 | ASSERT_NE(abc, const_cast<const char *>(result)); |
29 | ASSERT_STREQ(abc, result); |
30 | ::free(result); |
31 | |
32 | result = LIBC_NAMESPACE::strndup(abc, 1); |
33 | |
34 | ASSERT_NE(result, static_cast<char *>(nullptr)); |
35 | ASSERT_NE(abc, const_cast<const char *>(result)); |
36 | ASSERT_STREQ("a" , result); |
37 | ::free(result); |
38 | |
39 | result = LIBC_NAMESPACE::strndup(abc, 10); |
40 | |
41 | ASSERT_NE(result, static_cast<char *>(nullptr)); |
42 | ASSERT_NE(abc, const_cast<const char *>(result)); |
43 | ASSERT_STREQ(abc, result); |
44 | ::free(result); |
45 | } |
46 | |
47 | TEST(LlvmLibcstrndupTest, NullPtr) { |
48 | char *result = LIBC_NAMESPACE::strndup(nullptr, 0); |
49 | |
50 | ASSERT_EQ(result, static_cast<char *>(nullptr)); |
51 | } |
52 | |