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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "net/server/http_connection.h" | |
6 | |
7 #include <string> | |
8 | |
9 #include "base/memory/ref_counted.h" | |
10 #include "base/strings/string_piece.h" | |
11 #include "testing/gtest/include/gtest/gtest.h" | |
12 | |
13 namespace net { | |
14 namespace { | |
15 | |
16 std::string GetTestString(int size) { | |
17 std::string test_string; | |
18 for (int i = 0; i < size; ++i) { | |
19 test_string.push_back('A' + (i % 26)); | |
20 } | |
21 return test_string; | |
22 } | |
23 | |
24 TEST(HttpConnectionTest, ReadIOBuffer_SetCapacity) { | |
25 scoped_refptr<HttpConnection::ReadIOBuffer> buffer( | |
26 new HttpConnection::ReadIOBuffer); | |
27 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize + 0, | |
28 buffer->GetCapacity()); | |
29 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize + 0, | |
30 buffer->RemainingCapacity()); | |
31 EXPECT_EQ(0, buffer->GetSize()); | |
32 | |
33 const int kNewCapacity = HttpConnection::ReadIOBuffer::kInitialBufSize + 128; | |
34 buffer->SetCapacity(kNewCapacity); | |
35 EXPECT_EQ(kNewCapacity, buffer->GetCapacity()); | |
36 EXPECT_EQ(kNewCapacity, buffer->RemainingCapacity()); | |
37 EXPECT_EQ(0, buffer->GetSize()); | |
38 } | |
39 | |
40 TEST(HttpConnectionTest, ReadIOBuffer_SetCapacity_WithData) { | |
41 scoped_refptr<HttpConnection::ReadIOBuffer> buffer( | |
42 new HttpConnection::ReadIOBuffer); | |
43 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize + 0, | |
44 buffer->GetCapacity()); | |
45 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize + 0, | |
46 buffer->RemainingCapacity()); | |
47 | |
48 // Write arbitrara data up to kInitialBufSize. | |
mmenke
2014/08/15 14:23:16
nit: arbitrary
byungchul
2014/08/15 17:12:17
Done.
| |
49 std::string data_read(HttpConnection::ReadIOBuffer::kInitialBufSize, 'd'); | |
mmenke
2014/08/15 14:23:16
Suggest something more interesting than a single c
byungchul
2014/08/15 17:12:17
Done.
| |
50 memcpy(buffer->data(), data_read.data(), data_read.size()); | |
51 buffer->DidRead(data_read.size()); | |
52 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize + 0, | |
53 buffer->GetCapacity()); | |
54 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize - | |
55 static_cast<int>(data_read.size()), | |
56 buffer->RemainingCapacity()); | |
57 EXPECT_EQ(static_cast<int>(data_read.size()), buffer->GetSize()); | |
58 EXPECT_EQ(data_read, | |
59 base::StringPiece(buffer->StartOfBuffer(), buffer->GetSize())); | |
60 | |
61 // Check if read data in the buffer is same after SetCapacity(). | |
62 const int kNewCapacity = HttpConnection::ReadIOBuffer::kInitialBufSize + 128; | |
63 buffer->SetCapacity(kNewCapacity); | |
64 EXPECT_EQ(kNewCapacity, buffer->GetCapacity()); | |
65 EXPECT_EQ(kNewCapacity - static_cast<int>(data_read.size()), | |
66 buffer->RemainingCapacity()); | |
67 EXPECT_EQ(static_cast<int>(data_read.size()), buffer->GetSize()); | |
68 EXPECT_EQ(data_read, | |
69 base::StringPiece(buffer->StartOfBuffer(), buffer->GetSize())); | |
70 } | |
71 | |
72 TEST(HttpConnectionTest, ReadIOBuffer_IncreaseCapacity) { | |
73 scoped_refptr<HttpConnection::ReadIOBuffer> buffer( | |
74 new HttpConnection::ReadIOBuffer); | |
75 EXPECT_TRUE(buffer->IncreaseCapacity()); | |
76 const int kExpectedInitialBufSize = | |
77 HttpConnection::ReadIOBuffer::kInitialBufSize * | |
78 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor; | |
79 EXPECT_EQ(kExpectedInitialBufSize, buffer->GetCapacity()); | |
80 EXPECT_EQ(kExpectedInitialBufSize, buffer->RemainingCapacity()); | |
81 EXPECT_EQ(0, buffer->GetSize()); | |
82 | |
83 // Increase capacity until it fails. | |
84 while (buffer->IncreaseCapacity()); | |
85 EXPECT_FALSE(buffer->IncreaseCapacity()); | |
86 EXPECT_EQ(HttpConnection::ReadIOBuffer::kDefaultMaxBufferSize + 0, | |
87 buffer->max_buffer_size()); | |
88 EXPECT_EQ(HttpConnection::ReadIOBuffer::kDefaultMaxBufferSize + 0, | |
89 buffer->GetCapacity()); | |
90 | |
91 // Enlarge capacity limit. | |
92 buffer->set_max_buffer_size(buffer->max_buffer_size() * 2); | |
93 EXPECT_TRUE(buffer->IncreaseCapacity()); | |
94 EXPECT_EQ(HttpConnection::ReadIOBuffer::kDefaultMaxBufferSize * | |
95 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor, | |
96 buffer->GetCapacity()); | |
97 | |
98 // Shrink capacity limit. It doesn't change capacity itself. | |
99 buffer->set_max_buffer_size( | |
100 HttpConnection::ReadIOBuffer::kDefaultMaxBufferSize / 2); | |
101 EXPECT_FALSE(buffer->IncreaseCapacity()); | |
102 EXPECT_EQ(HttpConnection::ReadIOBuffer::kDefaultMaxBufferSize * | |
103 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor, | |
104 buffer->GetCapacity()); | |
105 } | |
106 | |
107 TEST(HttpConnectionTest, ReadIOBuffer_IncreaseCapacity_WithData) { | |
108 scoped_refptr<HttpConnection::ReadIOBuffer> buffer( | |
109 new HttpConnection::ReadIOBuffer); | |
110 EXPECT_TRUE(buffer->IncreaseCapacity()); | |
111 const int kExpectedInitialBufSize = | |
112 HttpConnection::ReadIOBuffer::kInitialBufSize * | |
113 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor; | |
114 EXPECT_EQ(kExpectedInitialBufSize, buffer->GetCapacity()); | |
115 EXPECT_EQ(kExpectedInitialBufSize, buffer->RemainingCapacity()); | |
116 EXPECT_EQ(0, buffer->GetSize()); | |
117 | |
118 // Write arbitrara data up to kExpectedInitialBufSize. | |
119 std::string data_read(kExpectedInitialBufSize, 'd'); | |
120 memcpy(buffer->data(), data_read.data(), data_read.size()); | |
121 buffer->DidRead(data_read.size()); | |
122 EXPECT_EQ(kExpectedInitialBufSize, buffer->GetCapacity()); | |
123 EXPECT_EQ(kExpectedInitialBufSize - static_cast<int>(data_read.size()), | |
124 buffer->RemainingCapacity()); | |
125 EXPECT_EQ(static_cast<int>(data_read.size()), buffer->GetSize()); | |
126 EXPECT_EQ(data_read, | |
127 base::StringPiece(buffer->StartOfBuffer(), buffer->GetSize())); | |
128 | |
129 // Increase capacity until it fails and check if read data in the buffer is | |
130 // same. | |
131 while (buffer->IncreaseCapacity()); | |
132 EXPECT_FALSE(buffer->IncreaseCapacity()); | |
133 EXPECT_EQ(HttpConnection::ReadIOBuffer::kDefaultMaxBufferSize + 0, | |
134 buffer->max_buffer_size()); | |
135 EXPECT_EQ(HttpConnection::ReadIOBuffer::kDefaultMaxBufferSize + 0, | |
136 buffer->GetCapacity()); | |
137 EXPECT_EQ(HttpConnection::ReadIOBuffer::kDefaultMaxBufferSize - | |
138 static_cast<int>(data_read.size()), | |
139 buffer->RemainingCapacity()); | |
140 EXPECT_EQ(static_cast<int>(data_read.size()), buffer->GetSize()); | |
141 EXPECT_EQ(data_read, | |
142 base::StringPiece(buffer->StartOfBuffer(), buffer->GetSize())); | |
143 } | |
144 | |
145 TEST(HttpConnectionTest, ReadIOBuffer_DidRead_DidConsume) { | |
146 scoped_refptr<HttpConnection::ReadIOBuffer> buffer( | |
147 new HttpConnection::ReadIOBuffer); | |
148 const char* start_of_buffer = buffer->StartOfBuffer(); | |
149 EXPECT_EQ(start_of_buffer, buffer->data()); | |
150 | |
151 // Read data. | |
152 const int kReadLength = 128; | |
153 const std::string kReadData(GetTestString(kReadLength)); | |
154 memcpy(buffer->data(), kReadData.data(), kReadLength); | |
155 buffer->DidRead(kReadLength); | |
156 // No change in total capacity. | |
157 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize + 0, | |
158 buffer->GetCapacity()); | |
159 // Change in unused capacity because of read data. | |
160 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize - kReadLength, | |
161 buffer->RemainingCapacity()); | |
162 EXPECT_EQ(kReadLength, buffer->GetSize()); | |
163 // No change in start pointers of read data. | |
164 EXPECT_EQ(start_of_buffer, buffer->StartOfBuffer()); | |
165 // Change in start pointer of unused buffer. | |
166 EXPECT_EQ(start_of_buffer + kReadLength, buffer->data()); | |
167 // Test read data. | |
168 EXPECT_EQ(kReadData, std::string(buffer->StartOfBuffer(), buffer->GetSize())); | |
169 | |
170 // Consume data partially. | |
171 const int kConsumedLength = 32; | |
172 ASSERT_LT(kConsumedLength, kReadLength); | |
173 buffer->DidConsume(kConsumedLength); | |
174 // Capacity reduced because read data was too small comparing to capacity. | |
175 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize / | |
176 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor, | |
177 buffer->GetCapacity()); | |
178 // Change in unused capacity because of read data. | |
179 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize / | |
180 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor - | |
181 kReadLength + kConsumedLength, | |
182 buffer->RemainingCapacity()); | |
183 // Change in read size. | |
184 EXPECT_EQ(kReadLength - kConsumedLength, buffer->GetSize()); | |
185 // Start data could be changed even when capacity is reduced. | |
186 start_of_buffer = buffer->StartOfBuffer(); | |
187 // Change in start pointer of unused buffer. | |
188 EXPECT_EQ(start_of_buffer + kReadLength - kConsumedLength, buffer->data()); | |
189 // Change in read data. | |
190 EXPECT_EQ(kReadData.substr(kConsumedLength), | |
191 std::string(buffer->StartOfBuffer(), buffer->GetSize())); | |
192 | |
193 // Read more data. | |
194 const int kReadLength2 = 64; | |
195 buffer->DidRead(kReadLength2); | |
196 // No change in total capacity. | |
197 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize / | |
198 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor, | |
199 buffer->GetCapacity()); | |
200 // Change in unused capacity because of read data. | |
201 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize / | |
202 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor - | |
203 kReadLength + kConsumedLength - kReadLength2, | |
204 buffer->RemainingCapacity()); | |
205 // Change in read size | |
206 EXPECT_EQ(kReadLength - kConsumedLength + kReadLength2, buffer->GetSize()); | |
207 // No change in start pointer of read part. | |
208 EXPECT_EQ(start_of_buffer, buffer->StartOfBuffer()); | |
209 // Change in start pointer of unused buffer. | |
210 EXPECT_EQ(start_of_buffer + kReadLength - kConsumedLength + kReadLength2, | |
211 buffer->data()); | |
212 | |
213 // Consume data fully. | |
214 buffer->DidConsume(kReadLength - kConsumedLength + kReadLength2); | |
215 // Capacity reduced again because read data was too small. | |
216 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize / | |
217 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor / | |
218 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor, | |
219 buffer->GetCapacity()); | |
220 EXPECT_EQ(HttpConnection::ReadIOBuffer::kInitialBufSize / | |
221 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor / | |
222 HttpConnection::ReadIOBuffer::kCapacityIncreaseFactor, | |
223 buffer->RemainingCapacity()); | |
224 // All reverts to initial because no data is left. | |
225 EXPECT_EQ(0, buffer->GetSize()); | |
226 // Start data could be changed even when capacity is reduced. | |
227 start_of_buffer = buffer->StartOfBuffer(); | |
228 EXPECT_EQ(start_of_buffer, buffer->data()); | |
229 } | |
230 | |
231 TEST(HttpConnectionTest, QueuedWriteIOBuffer_Append_DidConsume) { | |
232 scoped_refptr<HttpConnection::QueuedWriteIOBuffer> buffer( | |
233 new HttpConnection::QueuedWriteIOBuffer()); | |
234 EXPECT_TRUE(buffer->IsEmpty()); | |
235 EXPECT_EQ(0, buffer->GetSizeToWrite()); | |
236 EXPECT_EQ(0, buffer->total_size()); | |
237 | |
238 const std::string kData("data to write"); | |
239 EXPECT_TRUE(buffer->Append(kData)); | |
240 EXPECT_FALSE(buffer->IsEmpty()); | |
241 EXPECT_EQ(static_cast<int>(kData.size()), buffer->GetSizeToWrite()); | |
242 EXPECT_EQ(static_cast<int>(kData.size()), buffer->total_size()); | |
243 | |
244 const std::string kData2("more data to write"); | |
245 EXPECT_TRUE(buffer->Append(kData2)); | |
246 EXPECT_FALSE(buffer->IsEmpty()); | |
247 // No change in size to write. | |
248 EXPECT_EQ(static_cast<int>(kData.size()), buffer->GetSizeToWrite()); | |
249 // Change in total size. | |
250 EXPECT_EQ(static_cast<int>(kData.size() + kData2.size()), | |
251 buffer->total_size()); | |
252 | |
253 // Consume data partially. | |
254 const int kConsumedLength = kData.length() - 1; | |
255 buffer->DidConsume(kConsumedLength); | |
256 EXPECT_FALSE(buffer->IsEmpty()); | |
257 // Change in size to write. | |
258 EXPECT_EQ(static_cast<int>(kData.size()) - kConsumedLength, | |
259 buffer->GetSizeToWrite()); | |
260 // Change in total size. | |
261 EXPECT_EQ(static_cast<int>(kData.size() + kData2.size()) - kConsumedLength, | |
262 buffer->total_size()); | |
mmenke
2014/08/15 14:23:16
I mean partial consumption of a write buffer. You
byungchul
2014/08/15 17:12:17
This case does that. It writes kData and kData2, a
| |
263 | |
264 // Consume first data fully. | |
265 buffer->DidConsume(kData.size() - kConsumedLength); | |
266 EXPECT_FALSE(buffer->IsEmpty()); | |
267 // Now, size to write is size of data added second. | |
268 EXPECT_EQ(static_cast<int>(kData2.size()), buffer->GetSizeToWrite()); | |
269 // Change in total size. | |
270 EXPECT_EQ(static_cast<int>(kData2.size()), buffer->total_size()); | |
271 | |
272 // Consume second data fully. | |
273 buffer->DidConsume(kData2.size()); | |
274 EXPECT_TRUE(buffer->IsEmpty()); | |
275 EXPECT_EQ(0, buffer->GetSizeToWrite()); | |
276 EXPECT_EQ(0, buffer->total_size()); | |
277 } | |
278 | |
279 TEST(HttpConnectionTest, QueuedWriteIOBuffer_TotalSizeLimit) { | |
280 scoped_refptr<HttpConnection::QueuedWriteIOBuffer> buffer( | |
281 new HttpConnection::QueuedWriteIOBuffer()); | |
282 EXPECT_EQ(HttpConnection::QueuedWriteIOBuffer::kDefaultMaxBufferSize + 0, | |
283 buffer->max_buffer_size()); | |
284 | |
285 // Set total size limit very small. | |
286 buffer->set_max_buffer_size(10); | |
287 | |
288 const int kDataLength = 4; | |
289 const std::string kData(kDataLength, 'd'); | |
290 EXPECT_TRUE(buffer->Append(kData)); | |
291 EXPECT_EQ(kDataLength, buffer->total_size()); | |
292 EXPECT_TRUE(buffer->Append(kData)); | |
293 EXPECT_EQ(kDataLength * 2, buffer->total_size()); | |
294 | |
295 // Cannot append more data because it exceeds the limit. | |
296 EXPECT_FALSE(buffer->Append(kData)); | |
297 EXPECT_EQ(kDataLength * 2, buffer->total_size()); | |
298 | |
299 // Consume data partially. | |
300 const int kConsumedLength = 2; | |
301 buffer->DidConsume(kConsumedLength); | |
302 EXPECT_EQ(kDataLength * 2 - kConsumedLength, buffer->total_size()); | |
303 | |
304 // Can add more data. | |
305 EXPECT_TRUE(buffer->Append(kData)); | |
306 EXPECT_EQ(kDataLength * 3 - kConsumedLength, buffer->total_size()); | |
307 | |
308 // Cannot append more data because it exceeds the limit. | |
309 EXPECT_FALSE(buffer->Append(kData)); | |
310 EXPECT_EQ(kDataLength * 3 - kConsumedLength, buffer->total_size()); | |
311 | |
312 // Enlarge limit. | |
313 buffer->set_max_buffer_size(20); | |
314 // Can add more data. | |
315 EXPECT_TRUE(buffer->Append(kData)); | |
316 EXPECT_EQ(kDataLength * 4 - kConsumedLength, buffer->total_size()); | |
317 } | |
318 | |
319 } // namespace | |
320 } // namespace net | |
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