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1 // Copyright (c) 2012 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 "webkit/blob/local_file_stream_reader.h" | |
6 | |
7 #include <string> | |
8 | |
9 #include "base/file_util.h" | |
10 #include "base/files/file_path.h" | |
11 #include "base/files/scoped_temp_dir.h" | |
12 #include "base/memory/scoped_ptr.h" | |
13 #include "base/message_loop.h" | |
14 #include "base/platform_file.h" | |
15 #include "base/threading/thread.h" | |
16 #include "net/base/io_buffer.h" | |
17 #include "net/base/net_errors.h" | |
18 #include "net/base/test_completion_callback.h" | |
19 #include "testing/gtest/include/gtest/gtest.h" | |
20 | |
21 namespace webkit_blob { | |
22 | |
23 namespace { | |
24 | |
25 const char kTestData[] = "0123456789"; | |
26 const int kTestDataSize = arraysize(kTestData) - 1; | |
27 | |
28 void ReadFromReader(LocalFileStreamReader* reader, | |
29 std::string* data, size_t size, | |
30 int* result) { | |
31 ASSERT_TRUE(reader != NULL); | |
32 ASSERT_TRUE(result != NULL); | |
33 *result = net::OK; | |
34 net::TestCompletionCallback callback; | |
35 size_t total_bytes_read = 0; | |
36 while (total_bytes_read < size) { | |
37 scoped_refptr<net::IOBufferWithSize> buf( | |
38 new net::IOBufferWithSize(size - total_bytes_read)); | |
39 int rv = reader->Read(buf, buf->size(), callback.callback()); | |
40 if (rv == net::ERR_IO_PENDING) | |
41 rv = callback.WaitForResult(); | |
42 if (rv < 0) | |
43 *result = rv; | |
44 if (rv <= 0) | |
45 break; | |
46 total_bytes_read += rv; | |
47 data->append(buf->data(), rv); | |
48 } | |
49 } | |
50 | |
51 void NeverCalled(int) { ADD_FAILURE(); } | |
52 void EmptyCallback() {} | |
53 | |
54 void QuitLoop() { | |
55 base::MessageLoop::current()->Quit(); | |
56 } | |
57 | |
58 } // namespace | |
59 | |
60 class LocalFileStreamReaderTest : public testing::Test { | |
61 public: | |
62 LocalFileStreamReaderTest() | |
63 : message_loop_(base::MessageLoop::TYPE_IO), | |
64 file_thread_("FileUtilProxyTestFileThread") {} | |
65 | |
66 virtual void SetUp() OVERRIDE { | |
67 ASSERT_TRUE(file_thread_.Start()); | |
68 ASSERT_TRUE(dir_.CreateUniqueTempDir()); | |
69 | |
70 file_util::WriteFile(test_path(), kTestData, kTestDataSize); | |
71 base::PlatformFileInfo info; | |
72 ASSERT_TRUE(file_util::GetFileInfo(test_path(), &info)); | |
73 test_file_modification_time_ = info.last_modified; | |
74 } | |
75 | |
76 virtual void TearDown() OVERRIDE { | |
77 // Give another chance for deleted streams to perform Close. | |
78 base::MessageLoop::current()->RunUntilIdle(); | |
79 file_thread_.Stop(); | |
80 } | |
81 | |
82 protected: | |
83 LocalFileStreamReader* CreateFileReader( | |
84 const base::FilePath& path, | |
85 int64 initial_offset, | |
86 const base::Time& expected_modification_time) { | |
87 return new LocalFileStreamReader( | |
88 file_task_runner(), | |
89 path, | |
90 initial_offset, | |
91 expected_modification_time); | |
92 } | |
93 | |
94 void TouchTestFile() { | |
95 base::Time new_modified_time = | |
96 test_file_modification_time() - base::TimeDelta::FromSeconds(1); | |
97 ASSERT_TRUE(file_util::TouchFile(test_path(), | |
98 test_file_modification_time(), | |
99 new_modified_time)); | |
100 } | |
101 | |
102 base::MessageLoopProxy* file_task_runner() const { | |
103 return file_thread_.message_loop_proxy().get(); | |
104 } | |
105 | |
106 base::FilePath test_dir() const { return dir_.path(); } | |
107 base::FilePath test_path() const { return dir_.path().AppendASCII("test"); } | |
108 base::Time test_file_modification_time() const { | |
109 return test_file_modification_time_; | |
110 } | |
111 | |
112 void EnsureFileTaskFinished() { | |
113 file_task_runner()->PostTaskAndReply( | |
114 FROM_HERE, base::Bind(&EmptyCallback), base::Bind(&QuitLoop)); | |
115 base::MessageLoop::current()->Run(); | |
116 } | |
117 | |
118 private: | |
119 base::MessageLoop message_loop_; | |
120 base::Thread file_thread_; | |
121 base::ScopedTempDir dir_; | |
122 base::Time test_file_modification_time_; | |
123 }; | |
124 | |
125 TEST_F(LocalFileStreamReaderTest, NonExistent) { | |
126 base::FilePath nonexistent_path = test_dir().AppendASCII("nonexistent"); | |
127 scoped_ptr<LocalFileStreamReader> reader( | |
128 CreateFileReader(nonexistent_path, 0, base::Time())); | |
129 int result = 0; | |
130 std::string data; | |
131 ReadFromReader(reader.get(), &data, 10, &result); | |
132 ASSERT_EQ(net::ERR_FILE_NOT_FOUND, result); | |
133 ASSERT_EQ(0U, data.size()); | |
134 } | |
135 | |
136 TEST_F(LocalFileStreamReaderTest, Empty) { | |
137 base::FilePath empty_path = test_dir().AppendASCII("empty"); | |
138 base::PlatformFileError error = base::PLATFORM_FILE_OK; | |
139 base::PlatformFile file = base::CreatePlatformFile( | |
140 empty_path, | |
141 base::PLATFORM_FILE_CREATE | base::PLATFORM_FILE_READ, | |
142 NULL, &error); | |
143 ASSERT_EQ(base::PLATFORM_FILE_OK, error); | |
144 ASSERT_NE(base::kInvalidPlatformFileValue, file); | |
145 base::ClosePlatformFile(file); | |
146 | |
147 scoped_ptr<LocalFileStreamReader> reader( | |
148 CreateFileReader(empty_path, 0, base::Time())); | |
149 int result = 0; | |
150 std::string data; | |
151 ReadFromReader(reader.get(), &data, 10, &result); | |
152 ASSERT_EQ(net::OK, result); | |
153 ASSERT_EQ(0U, data.size()); | |
154 | |
155 net::TestInt64CompletionCallback callback; | |
156 int64 length_result = reader->GetLength(callback.callback()); | |
157 if (length_result == net::ERR_IO_PENDING) | |
158 length_result = callback.WaitForResult(); | |
159 ASSERT_EQ(0, result); | |
160 } | |
161 | |
162 TEST_F(LocalFileStreamReaderTest, GetLengthNormal) { | |
163 scoped_ptr<LocalFileStreamReader> reader( | |
164 CreateFileReader(test_path(), 0, test_file_modification_time())); | |
165 net::TestInt64CompletionCallback callback; | |
166 int64 result = reader->GetLength(callback.callback()); | |
167 if (result == net::ERR_IO_PENDING) | |
168 result = callback.WaitForResult(); | |
169 ASSERT_EQ(kTestDataSize, result); | |
170 } | |
171 | |
172 TEST_F(LocalFileStreamReaderTest, GetLengthAfterModified) { | |
173 // Touch file so that the file's modification time becomes different | |
174 // from what we expect. | |
175 TouchTestFile(); | |
176 | |
177 scoped_ptr<LocalFileStreamReader> reader( | |
178 CreateFileReader(test_path(), 0, test_file_modification_time())); | |
179 net::TestInt64CompletionCallback callback; | |
180 int64 result = reader->GetLength(callback.callback()); | |
181 if (result == net::ERR_IO_PENDING) | |
182 result = callback.WaitForResult(); | |
183 ASSERT_EQ(net::ERR_UPLOAD_FILE_CHANGED, result); | |
184 | |
185 // With NULL expected modification time this should work. | |
186 reader.reset(CreateFileReader(test_path(), 0, base::Time())); | |
187 result = reader->GetLength(callback.callback()); | |
188 if (result == net::ERR_IO_PENDING) | |
189 result = callback.WaitForResult(); | |
190 ASSERT_EQ(kTestDataSize, result); | |
191 } | |
192 | |
193 TEST_F(LocalFileStreamReaderTest, GetLengthWithOffset) { | |
194 scoped_ptr<LocalFileStreamReader> reader( | |
195 CreateFileReader(test_path(), 3, base::Time())); | |
196 net::TestInt64CompletionCallback callback; | |
197 int64 result = reader->GetLength(callback.callback()); | |
198 if (result == net::ERR_IO_PENDING) | |
199 result = callback.WaitForResult(); | |
200 // Initial offset does not affect the result of GetLength. | |
201 ASSERT_EQ(kTestDataSize, result); | |
202 } | |
203 | |
204 TEST_F(LocalFileStreamReaderTest, ReadNormal) { | |
205 scoped_ptr<LocalFileStreamReader> reader( | |
206 CreateFileReader(test_path(), 0, test_file_modification_time())); | |
207 int result = 0; | |
208 std::string data; | |
209 ReadFromReader(reader.get(), &data, kTestDataSize, &result); | |
210 ASSERT_EQ(net::OK, result); | |
211 ASSERT_EQ(kTestData, data); | |
212 } | |
213 | |
214 TEST_F(LocalFileStreamReaderTest, ReadAfterModified) { | |
215 // Touch file so that the file's modification time becomes different | |
216 // from what we expect. | |
217 TouchTestFile(); | |
218 | |
219 scoped_ptr<LocalFileStreamReader> reader( | |
220 CreateFileReader(test_path(), 0, test_file_modification_time())); | |
221 int result = 0; | |
222 std::string data; | |
223 ReadFromReader(reader.get(), &data, kTestDataSize, &result); | |
224 ASSERT_EQ(net::ERR_UPLOAD_FILE_CHANGED, result); | |
225 ASSERT_EQ(0U, data.size()); | |
226 | |
227 // With NULL expected modification time this should work. | |
228 data.clear(); | |
229 reader.reset(CreateFileReader(test_path(), 0, base::Time())); | |
230 ReadFromReader(reader.get(), &data, kTestDataSize, &result); | |
231 ASSERT_EQ(net::OK, result); | |
232 ASSERT_EQ(kTestData, data); | |
233 } | |
234 | |
235 TEST_F(LocalFileStreamReaderTest, ReadWithOffset) { | |
236 scoped_ptr<LocalFileStreamReader> reader( | |
237 CreateFileReader(test_path(), 3, base::Time())); | |
238 int result = 0; | |
239 std::string data; | |
240 ReadFromReader(reader.get(), &data, kTestDataSize, &result); | |
241 ASSERT_EQ(net::OK, result); | |
242 ASSERT_EQ(&kTestData[3], data); | |
243 } | |
244 | |
245 TEST_F(LocalFileStreamReaderTest, DeleteWithUnfinishedRead) { | |
246 scoped_ptr<LocalFileStreamReader> reader( | |
247 CreateFileReader(test_path(), 0, base::Time())); | |
248 | |
249 net::TestCompletionCallback callback; | |
250 scoped_refptr<net::IOBufferWithSize> buf( | |
251 new net::IOBufferWithSize(kTestDataSize)); | |
252 int rv = reader->Read(buf, buf->size(), base::Bind(&NeverCalled)); | |
253 ASSERT_TRUE(rv == net::ERR_IO_PENDING || rv >= 0); | |
254 | |
255 // Delete immediately. | |
256 // Should not crash; nor should NeverCalled be callback. | |
257 reader.reset(); | |
258 EnsureFileTaskFinished(); | |
259 } | |
260 | |
261 } // namespace webkit_blob | |
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