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