1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
//===-- Unittests for wmemmove --------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "hdr/types/size_t.h"
#include "hdr/types/wchar_t.h"
#include "src/wchar/wmemmove.h"
#include "test/UnitTest/Test.h"
TEST(LlvmLibcWMemmoveTest, MoveZeroByte) {
wchar_t buffer[] = {L'a', L'b', L'y', L'z'};
wchar_t *ret = LIBC_NAMESPACE::wmemmove(buffer, buffer + 2, 0);
EXPECT_EQ(ret, buffer);
const wchar_t expected[] = {L'a', L'b', L'y', L'z'};
EXPECT_TRUE(buffer[0] == expected[0]);
EXPECT_TRUE(buffer[1] == expected[1]);
EXPECT_TRUE(buffer[2] == expected[2]);
EXPECT_TRUE(buffer[3] == expected[3]);
}
TEST(LlvmLibcWMemmoveTest, DstAndSrcPointToSameAddress) {
wchar_t buffer[] = {L'a', L'b'};
wchar_t *ret = LIBC_NAMESPACE::wmemmove(buffer, buffer, 1);
EXPECT_EQ(ret, buffer);
const wchar_t expected[] = {L'a', L'b'};
EXPECT_TRUE(buffer[0] == expected[0]);
EXPECT_TRUE(buffer[1] == expected[1]);
}
TEST(LlvmLibcWMemmoveTest, DstStartsBeforeSrc) {
// Set boundary at beginning and end for not overstepping when
// copy forward or backward.
wchar_t buffer[] = {L'z', L'a', L'b', L'c', L'z'};
wchar_t *dst = buffer + 1;
wchar_t *ret = LIBC_NAMESPACE::wmemmove(dst, buffer + 2, 2);
EXPECT_EQ(ret, dst);
const wchar_t expected[] = {L'z', L'b', L'c', L'c', L'z'};
EXPECT_TRUE(buffer[0] == expected[0]);
EXPECT_TRUE(buffer[1] == expected[1]);
EXPECT_TRUE(buffer[2] == expected[2]);
EXPECT_TRUE(buffer[3] == expected[3]);
EXPECT_TRUE(buffer[4] == expected[4]);
}
TEST(LlvmLibcWMemmoveTest, DstStartsAfterSrc) {
wchar_t buffer[] = {L'z', L'a', L'b', L'c', L'z'};
wchar_t *dst = buffer + 2;
wchar_t *ret = LIBC_NAMESPACE::wmemmove(dst, buffer + 1, 2);
EXPECT_EQ(ret, dst);
const wchar_t expected[] = {L'z', L'a', L'a', L'b', L'z'};
EXPECT_TRUE(buffer[0] == expected[0]);
EXPECT_TRUE(buffer[1] == expected[1]);
EXPECT_TRUE(buffer[2] == expected[2]);
EXPECT_TRUE(buffer[3] == expected[3]);
EXPECT_TRUE(buffer[4] == expected[4]);
}
// e.g. `Dst` follow `src`.
// str: [abcdefghij]
// [__src_____]
// [_____Dst__]
TEST(LlvmLibcWMemmoveTest, SrcFollowDst) {
wchar_t buffer[] = {L'z', L'a', L'b', L'z'};
wchar_t *dst = buffer + 1;
wchar_t *ret = LIBC_NAMESPACE::wmemmove(dst, buffer + 2, 1);
EXPECT_EQ(ret, dst);
const char expected[] = {L'z', L'b', L'b', L'z'};
EXPECT_TRUE(buffer[0] == expected[0]);
EXPECT_TRUE(buffer[1] == expected[1]);
EXPECT_TRUE(buffer[2] == expected[2]);
EXPECT_TRUE(buffer[3] == expected[3]);
}
TEST(LlvmLibcWMemmoveTest, DstFollowSrc) {
wchar_t buffer[] = {L'z', L'a', L'b', L'z'};
wchar_t *dst = buffer + 2;
wchar_t *ret = LIBC_NAMESPACE::wmemmove(dst, buffer + 1, 1);
EXPECT_EQ(ret, dst);
const char expected[] = {L'z', L'a', L'a', L'z'};
EXPECT_TRUE(buffer[0] == expected[0]);
EXPECT_TRUE(buffer[1] == expected[1]);
EXPECT_TRUE(buffer[2] == expected[2]);
EXPECT_TRUE(buffer[3] == expected[3]);
}
#if defined(LIBC_ADD_NULL_CHECKS)
TEST(LlvmLibcWMemmoveTest, NullptrCrash) {
wchar_t buffer[] = {L'a', L'b'};
// Passing in a nullptr should crash the program.
EXPECT_DEATH([&buffer] { LIBC_NAMESPACE::wmemmove(buffer, nullptr, 2); },
WITH_SIGNAL(-1));
EXPECT_DEATH([&buffer] { LIBC_NAMESPACE::wmemmove(nullptr, buffer, 2); },
WITH_SIGNAL(-1));
}
#endif // LIBC_ADD_NULL_CHECKS
|
