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
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
#include <library/cpp/actors/util/rope.h>
#include <library/cpp/testing/unittest/registar.h>
#include <util/random/random.h>
#include "shared_data_rope_backend.h"
namespace NActors {
namespace {
TRope CreateRope(TString s, size_t sliceSize) {
TRope res;
for (size_t i = 0; i < s.size(); ) {
size_t len = std::min(sliceSize, s.size() - i);
if (i % 2) {
auto str = s.substr(i, len);
res.Insert(res.End(), TRope(MakeIntrusive<TRopeSharedDataBackend>(
TSharedData::Copy(str.data(), str.size()))));
} else {
res.Insert(res.End(), TRope(s.substr(i, len)));
}
i += len;
}
return res;
}
TString RopeToString(const TRope& rope) {
TString res;
auto iter = rope.Begin();
while (iter != rope.End()) {
res.append(iter.ContiguousData(), iter.ContiguousSize());
iter.AdvanceToNextContiguousBlock();
}
UNIT_ASSERT_VALUES_EQUAL(rope.GetSize(), res.size());
TString temp = TString::Uninitialized(rope.GetSize());
rope.Begin().ExtractPlainDataAndAdvance(temp.Detach(), temp.size());
UNIT_ASSERT_VALUES_EQUAL(temp, res);
return res;
}
TString Text = "No elements are copied or moved, only the internal pointers of the list nodes are re-pointed.";
}
Y_UNIT_TEST_SUITE(TRopeSharedDataBackend) {
// Same tests as in TRope but with new CreateRope using TSharedData backend
Y_UNIT_TEST(Leak) {
const size_t begin = 10, end = 20;
TRope rope = CreateRope(Text, 10);
rope.Erase(rope.Begin() + begin, rope.Begin() + end);
}
Y_UNIT_TEST(BasicRange) {
TRope rope = CreateRope(Text, 10);
for (size_t begin = 0; begin < Text.size(); ++begin) {
for (size_t end = begin; end <= Text.size(); ++end) {
TRope::TIterator rBegin = rope.Begin() + begin;
TRope::TIterator rEnd = rope.Begin() + end;
UNIT_ASSERT_VALUES_EQUAL(RopeToString(TRope(rBegin, rEnd)), Text.substr(begin, end - begin));
}
}
}
Y_UNIT_TEST(Erase) {
for (size_t begin = 0; begin < Text.size(); ++begin) {
for (size_t end = begin; end <= Text.size(); ++end) {
TRope rope = CreateRope(Text, 10);
rope.Erase(rope.Begin() + begin, rope.Begin() + end);
TString text = Text;
text.erase(text.begin() + begin, text.begin() + end);
UNIT_ASSERT_VALUES_EQUAL(RopeToString(rope), text);
}
}
}
Y_UNIT_TEST(Insert) {
TRope rope = CreateRope(Text, 10);
for (size_t begin = 0; begin < Text.size(); ++begin) {
for (size_t end = begin; end <= Text.size(); ++end) {
TRope part = TRope(rope.Begin() + begin, rope.Begin() + end);
for (size_t where = 0; where <= Text.size(); ++where) {
TRope x(rope);
x.Insert(x.Begin() + where, TRope(part));
UNIT_ASSERT_VALUES_EQUAL(x.GetSize(), rope.GetSize() + part.GetSize());
TString text = Text;
text.insert(text.begin() + where, Text.begin() + begin, Text.begin() + end);
UNIT_ASSERT_VALUES_EQUAL(RopeToString(x), text);
}
}
}
}
Y_UNIT_TEST(Extract) {
for (size_t begin = 0; begin < Text.size(); ++begin) {
for (size_t end = begin; end <= Text.size(); ++end) {
TRope rope = CreateRope(Text, 10);
TRope part = rope.Extract(rope.Begin() + begin, rope.Begin() + end);
TString text = Text;
text.erase(text.begin() + begin, text.begin() + end);
UNIT_ASSERT_VALUES_EQUAL(RopeToString(rope), text);
UNIT_ASSERT_VALUES_EQUAL(RopeToString(part), Text.substr(begin, end - begin));
}
}
}
Y_UNIT_TEST(EraseFront) {
for (size_t pos = 0; pos <= Text.size(); ++pos) {
TRope rope = CreateRope(Text, 10);
rope.EraseFront(pos);
UNIT_ASSERT_VALUES_EQUAL(RopeToString(rope), Text.substr(pos));
}
}
Y_UNIT_TEST(EraseBack) {
for (size_t pos = 0; pos <= Text.size(); ++pos) {
TRope rope = CreateRope(Text, 10);
rope.EraseBack(pos);
UNIT_ASSERT_VALUES_EQUAL(RopeToString(rope), Text.substr(0, Text.size() - pos));
}
}
Y_UNIT_TEST(ExtractFront) {
for (size_t step = 1; step <= Text.size(); ++step) {
TRope rope = CreateRope(Text, 10);
TRope out;
while (const size_t len = Min(step, rope.GetSize())) {
rope.ExtractFront(len, &out);
UNIT_ASSERT(rope.GetSize() + out.GetSize() == Text.size());
UNIT_ASSERT_VALUES_EQUAL(RopeToString(out), Text.substr(0, out.GetSize()));
}
}
}
Y_UNIT_TEST(ExtractFrontPlain) {
for (size_t step = 1; step <= Text.size(); ++step) {
TRope rope = CreateRope(Text, 10);
TString buffer = Text;
auto it = rope.Begin();
size_t remain = rope.GetSize();
while (const size_t len = Min(step, remain)) {
TString data = TString::Uninitialized(len);
it.ExtractPlainDataAndAdvance(data.Detach(), data.size());
UNIT_ASSERT_VALUES_EQUAL(data, buffer.substr(0, len));
UNIT_ASSERT_VALUES_EQUAL(RopeToString(TRope(it, rope.End())), buffer.substr(len));
buffer = buffer.substr(len);
remain -= len;
}
}
}
Y_UNIT_TEST(Glueing) {
TRope rope = CreateRope(Text, 10);
for (size_t begin = 0; begin <= Text.size(); ++begin) {
for (size_t end = begin; end <= Text.size(); ++end) {
TString repr = rope.DebugString();
TRope temp = rope.Extract(rope.Position(begin), rope.Position(end));
rope.Insert(rope.Position(begin), std::move(temp));
UNIT_ASSERT_VALUES_EQUAL(repr, rope.DebugString());
UNIT_ASSERT_VALUES_EQUAL(RopeToString(rope), Text);
}
}
}
Y_UNIT_TEST(IterWalk) {
TRope rope = CreateRope(Text, 10);
for (size_t step1 = 0; step1 <= rope.GetSize(); ++step1) {
for (size_t step2 = 0; step2 <= step1; ++step2) {
TRope::TConstIterator iter = rope.Begin();
iter += step1;
iter -= step2;
UNIT_ASSERT(iter == rope.Position(step1 - step2));
}
}
}
Y_UNIT_TEST(Compare) {
auto check = [](const TString& x, const TString& y) {
const TRope xRope = CreateRope(x, 7);
const TRope yRope = CreateRope(y, 11);
UNIT_ASSERT_VALUES_EQUAL(xRope == yRope, x == y);
UNIT_ASSERT_VALUES_EQUAL(xRope != yRope, x != y);
UNIT_ASSERT_VALUES_EQUAL(xRope < yRope, x < y);
UNIT_ASSERT_VALUES_EQUAL(xRope <= yRope, x <= y);
UNIT_ASSERT_VALUES_EQUAL(xRope > yRope, x > y);
UNIT_ASSERT_VALUES_EQUAL(xRope >= yRope, x >= y);
};
TVector<TString> pool;
for (size_t k = 0; k < 10; ++k) {
size_t len = RandomNumber<size_t>(100) + 100;
TString s = TString::Uninitialized(len);
char *p = s.Detach();
for (size_t j = 0; j < len; ++j) {
*p++ = RandomNumber<unsigned char>();
}
pool.push_back(std::move(s));
}
for (const TString& x : pool) {
for (const TString& y : pool) {
check(x, y);
}
}
}
// Specific TSharedDataRopeBackend tests
Y_UNIT_TEST(RopeOnlyBorrows) {
TSharedData data = TSharedData::Copy(Text.data(), Text.size());
{
TRope rope;
rope.Insert(rope.End(), TRope(MakeIntrusive<TRopeSharedDataBackend>(data)));
UNIT_ASSERT(data.IsShared());
TSharedData dataCopy = data;
UNIT_ASSERT(dataCopy.IsShared());
UNIT_ASSERT_EQUAL(dataCopy.data(), data.data());
rope.Insert(rope.End(), TRope(MakeIntrusive<TRopeSharedDataBackend>(data)));
rope.Insert(rope.End(), TRope(MakeIntrusive<TRopeSharedDataBackend>(data)));
dataCopy.TrimBack(10);
UNIT_ASSERT_EQUAL(rope.GetSize(), data.size() * 3);
}
UNIT_ASSERT(data.IsPrivate());
}
}
} // namespace NActors
|
