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 "src/string/strcpy.h"
10#include "test/UnitTest/Test.h"
11
12TEST(LlvmLibcStrCpyTest, EmptySrc) {
13 const char *empty = "";
14 char dest[4] = {'a', 'b', 'c', '\0'};
15
16 char *result = LIBC_NAMESPACE::strcpy(dest, src: empty);
17 ASSERT_EQ(dest, result);
18 ASSERT_STREQ(dest, result);
19 ASSERT_STREQ(dest, empty);
20}
21
22TEST(LlvmLibcStrCpyTest, EmptyDest) {
23 const char *abc = "abc";
24 char dest[4];
25
26 char *result = LIBC_NAMESPACE::strcpy(dest, src: abc);
27 ASSERT_EQ(dest, result);
28 ASSERT_STREQ(dest, result);
29 ASSERT_STREQ(dest, abc);
30}
31
32TEST(LlvmLibcStrCpyTest, OffsetDest) {
33 const char *abc = "abc";
34 char dest[7];
35
36 dest[0] = 'x';
37 dest[1] = 'y';
38 dest[2] = 'z';
39
40 char *result = LIBC_NAMESPACE::strcpy(dest: dest + 3, src: abc);
41 ASSERT_EQ(dest + 3, result);
42 ASSERT_STREQ(dest + 3, result);
43 ASSERT_STREQ(dest, "xyzabc");
44}
45

source code of libc/test/src/string/strcpy_test.cpp