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