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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/ArrayUtils.h"
#include "nsAtom.h"
#include "nsString.h"
#include "UTFStrings.h"
#include "nsIThread.h"
#include "nsThreadUtils.h"
#include "gtest/gtest.h"
#include "mozilla/gtest/MozAssertions.h"
using namespace mozilla;
int32_t NS_GetUnusedAtomCount(void);
namespace TestAtoms {
TEST(Atoms, Basic)
{
for (unsigned int i = 0; i < ArrayLength(ValidStrings); ++i) {
nsDependentString str16(ValidStrings[i].m16);
nsDependentCString str8(ValidStrings[i].m8);
RefPtr<nsAtom> atom = NS_Atomize(str16);
EXPECT_TRUE(atom->Equals(str16));
nsString tmp16;
nsCString tmp8;
atom->ToString(tmp16);
atom->ToUTF8String(tmp8);
EXPECT_TRUE(str16.Equals(tmp16));
EXPECT_TRUE(str8.Equals(tmp8));
EXPECT_TRUE(nsDependentString(atom->GetUTF16String()).Equals(str16));
EXPECT_TRUE(nsAtomString(atom).Equals(str16));
EXPECT_TRUE(nsDependentAtomString(atom).Equals(str16));
EXPECT_TRUE(nsAtomCString(atom).Equals(str8));
}
}
TEST(Atoms, 16vs8)
{
for (unsigned int i = 0; i < ArrayLength(ValidStrings); ++i) {
RefPtr<nsAtom> atom16 = NS_Atomize(ValidStrings[i].m16);
RefPtr<nsAtom> atom8 = NS_Atomize(ValidStrings[i].m8);
EXPECT_EQ(atom16, atom8);
}
}
TEST(Atoms, Null)
{
nsAutoString str(u"string with a \0 char"_ns);
nsDependentString strCut(str.get());
EXPECT_FALSE(str.Equals(strCut));
RefPtr<nsAtom> atomCut = NS_Atomize(strCut);
RefPtr<nsAtom> atom = NS_Atomize(str);
EXPECT_EQ(atom->GetLength(), str.Length());
EXPECT_TRUE(atom->Equals(str));
EXPECT_NE(atom, atomCut);
EXPECT_TRUE(atomCut->Equals(strCut));
}
TEST(Atoms, Invalid)
{
for (unsigned int i = 0; i < ArrayLength(Invalid16Strings); ++i) {
nsrefcnt count = NS_GetNumberOfAtoms();
{
RefPtr<nsAtom> atom16 = NS_Atomize(Invalid16Strings[i].m16);
EXPECT_TRUE(atom16->Equals(nsDependentString(Invalid16Strings[i].m16)));
}
EXPECT_EQ(count, NS_GetNumberOfAtoms());
}
#ifndef DEBUG
// Don't run this test in debug builds as that intentionally asserts.
for (unsigned int i = 0; i < ArrayLength(Invalid8Strings); ++i) {
nsrefcnt count = NS_GetNumberOfAtoms();
{
RefPtr<nsAtom> atom8 = NS_Atomize(Invalid8Strings[i].m8);
RefPtr<nsAtom> atom16 = NS_Atomize(Invalid8Strings[i].m16);
EXPECT_EQ(atom16, atom8);
EXPECT_TRUE(atom16->Equals(nsDependentString(Invalid8Strings[i].m16)));
}
EXPECT_EQ(count, NS_GetNumberOfAtoms());
}
for (unsigned int i = 0; i < ArrayLength(Malformed8Strings); ++i) {
nsrefcnt count = NS_GetNumberOfAtoms();
{
RefPtr<nsAtom> atom8 = NS_Atomize(Malformed8Strings[i].m8);
RefPtr<nsAtom> atom16 = NS_Atomize(Malformed8Strings[i].m16);
EXPECT_EQ(atom8, atom16);
}
EXPECT_EQ(count, NS_GetNumberOfAtoms());
}
#endif
}
#define FIRST_ATOM_STR "first static atom. Hello!"
#define SECOND_ATOM_STR "second static atom. @World!"
#define THIRD_ATOM_STR "third static atom?!"
static bool isStaticAtom(nsAtom* atom) {
// Don't use logic && in order to ensure that all addrefs/releases are always
// run, even if one of the tests fail. This allows us to run this code on a
// non-static atom without affecting its refcount.
bool rv = (atom->AddRef() == 2);
rv &= (atom->AddRef() == 2);
rv &= (atom->AddRef() == 2);
rv &= (atom->Release() == 1);
rv &= (atom->Release() == 1);
rv &= (atom->Release() == 1);
return rv;
}
TEST(Atoms, Table)
{
nsrefcnt count = NS_GetNumberOfAtoms();
RefPtr<nsAtom> thirdDynamic = NS_Atomize(THIRD_ATOM_STR);
EXPECT_FALSE(isStaticAtom(thirdDynamic));
EXPECT_TRUE(thirdDynamic);
EXPECT_EQ(NS_GetNumberOfAtoms(), count + 1);
}
class nsAtomRunner final : public Runnable {
public:
NS_IMETHOD Run() final {
for (int i = 0; i < 10000; i++) {
RefPtr<nsAtom> atom = NS_Atomize(u"A Testing Atom");
}
return NS_OK;
}
nsAtomRunner() : Runnable("nsAtomRunner") {}
private:
~nsAtomRunner() = default;
};
TEST(Atoms, ConcurrentAccessing)
{
static const size_t kThreadCount = 4;
// Force a GC before so that we don't have any unused atom.
NS_GetNumberOfAtoms();
EXPECT_EQ(NS_GetUnusedAtomCount(), int32_t(0));
nsCOMPtr<nsIThread> threads[kThreadCount];
for (size_t i = 0; i < kThreadCount; i++) {
nsresult rv = NS_NewNamedThread("Atom Test", getter_AddRefs(threads[i]),
new nsAtomRunner);
EXPECT_NS_SUCCEEDED(rv);
}
for (size_t i = 0; i < kThreadCount; i++) {
threads[i]->Shutdown();
}
// We should have one unused atom from this test.
EXPECT_EQ(NS_GetUnusedAtomCount(), int32_t(1));
}
} // namespace TestAtoms
|
