1 //===-- Unittests for strlcpy ---------------------------------------------===//
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/strlcpy.h"
10 #include "utils/UnitTest/Test.h"
11 #include <stdlib.h>
12 
13 TEST(LlvmLibcStrlcpyTest, TooBig) {
14   const char *str = "abc";
15   char buf[2];
16   EXPECT_EQ(__llvm_libc::strlcpy(buf, str, 2), size_t(3));
17   EXPECT_STREQ(buf, "a");
18 
19   EXPECT_EQ(__llvm_libc::strlcpy(nullptr, str, 0), size_t(3));
20 }
21 
22 TEST(LlvmLibcStrlcpyTest, Smaller) {
23   const char *str = "abc";
24   char buf[7]{"111111"};
25 
26   EXPECT_EQ(__llvm_libc::strlcpy(buf, str, 7), size_t(3));
27   EXPECT_STREQ(buf, "abc");
28   for (const char *p = buf + 3; p < buf + 7; p++)
29     EXPECT_EQ(*p, '\0');
30 }
31