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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/fileapi/local_file_stream_writer.h" | |
6 | |
7 #include <string> | |
8 | |
9 #include "base/callback.h" | |
10 #include "base/file_util.h" | |
11 #include "base/files/scoped_temp_dir.h" | |
12 #include "base/logging.h" | |
13 #include "base/memory/scoped_ptr.h" | |
14 #include "base/message_loop.h" | |
15 #include "net/base/io_buffer.h" | |
16 #include "net/base/test_completion_callback.h" | |
17 #include "testing/gtest/include/gtest/gtest.h" | |
18 | |
19 namespace { | |
20 | |
21 using fileapi::LocalFileStreamWriter; | |
22 | |
23 class LocalFileStreamWriterTest : public testing::Test { | |
24 public: | |
25 LocalFileStreamWriterTest() : message_loop_(base::MessageLoop::TYPE_IO) {} | |
26 | |
27 virtual void SetUp() OVERRIDE { | |
28 ASSERT_TRUE(temp_dir_.CreateUniqueTempDir()); | |
29 } | |
30 | |
31 protected: | |
32 base::FilePath Path(const std::string& name) { | |
33 return temp_dir_.path().AppendASCII(name); | |
34 } | |
35 | |
36 int WriteStringToWriter(LocalFileStreamWriter* writer, | |
37 const std::string& data) { | |
38 scoped_refptr<net::StringIOBuffer> buffer(new net::StringIOBuffer(data)); | |
39 scoped_refptr<net::DrainableIOBuffer> drainable( | |
40 new net::DrainableIOBuffer(buffer, buffer->size())); | |
41 | |
42 while (drainable->BytesRemaining() > 0) { | |
43 net::TestCompletionCallback callback; | |
44 int result = writer->Write(drainable, drainable->BytesRemaining(), | |
45 callback.callback()); | |
46 if (result == net::ERR_IO_PENDING) | |
47 result = callback.WaitForResult(); | |
48 if (result <= 0) | |
49 return result; | |
50 drainable->DidConsume(result); | |
51 } | |
52 return net::OK; | |
53 } | |
54 | |
55 std::string GetFileContent(const base::FilePath& path) { | |
56 std::string content; | |
57 file_util::ReadFileToString(path, &content); | |
58 return content; | |
59 } | |
60 | |
61 base::FilePath CreateFileWithContent(const std::string& name, | |
62 const std::string& data) { | |
63 base::FilePath path = Path(name); | |
64 file_util::WriteFile(path, data.c_str(), data.size()); | |
65 return path; | |
66 } | |
67 | |
68 private: | |
69 base::MessageLoop message_loop_; | |
70 base::ScopedTempDir temp_dir_; | |
71 }; | |
72 | |
73 void NeverCalled(int unused) { | |
74 ADD_FAILURE(); | |
75 } | |
76 | |
77 } // namespace | |
78 | |
79 TEST_F(LocalFileStreamWriterTest, Write) { | |
80 base::FilePath path = CreateFileWithContent("file_a", std::string()); | |
81 scoped_ptr<LocalFileStreamWriter> writer(new LocalFileStreamWriter(path, 0)); | |
82 EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "foo")); | |
83 EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "bar")); | |
84 writer.reset(); | |
85 base::MessageLoop::current()->RunUntilIdle(); | |
86 EXPECT_TRUE(file_util::PathExists(path)); | |
87 EXPECT_EQ("foobar", GetFileContent(path)); | |
88 } | |
89 | |
90 TEST_F(LocalFileStreamWriterTest, WriteMiddle) { | |
91 base::FilePath path = CreateFileWithContent("file_a", "foobar"); | |
92 scoped_ptr<LocalFileStreamWriter> writer(new LocalFileStreamWriter(path, 2)); | |
93 EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "xxx")); | |
94 writer.reset(); | |
95 base::MessageLoop::current()->RunUntilIdle(); | |
96 EXPECT_TRUE(file_util::PathExists(path)); | |
97 EXPECT_EQ("foxxxr", GetFileContent(path)); | |
98 } | |
99 | |
100 TEST_F(LocalFileStreamWriterTest, WriteEnd) { | |
101 base::FilePath path = CreateFileWithContent("file_a", "foobar"); | |
102 scoped_ptr<LocalFileStreamWriter> writer(new LocalFileStreamWriter(path, 6)); | |
103 EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "xxx")); | |
104 writer.reset(); | |
105 base::MessageLoop::current()->RunUntilIdle(); | |
106 EXPECT_TRUE(file_util::PathExists(path)); | |
107 EXPECT_EQ("foobarxxx", GetFileContent(path)); | |
108 } | |
109 | |
110 TEST_F(LocalFileStreamWriterTest, WriteFailForNonexistingFile) { | |
111 base::FilePath path = Path("file_a"); | |
112 ASSERT_FALSE(file_util::PathExists(path)); | |
113 scoped_ptr<LocalFileStreamWriter> writer(new LocalFileStreamWriter(path, 0)); | |
114 EXPECT_EQ(net::ERR_FILE_NOT_FOUND, WriteStringToWriter(writer.get(), "foo")); | |
115 writer.reset(); | |
116 base::MessageLoop::current()->RunUntilIdle(); | |
117 EXPECT_FALSE(file_util::PathExists(path)); | |
118 } | |
119 | |
120 TEST_F(LocalFileStreamWriterTest, CancelBeforeOperation) { | |
121 base::FilePath path = Path("file_a"); | |
122 scoped_ptr<LocalFileStreamWriter> writer(new LocalFileStreamWriter(path, 0)); | |
123 // Cancel immediately fails when there's no in-flight operation. | |
124 int cancel_result = writer->Cancel(base::Bind(&NeverCalled)); | |
125 EXPECT_EQ(net::ERR_UNEXPECTED, cancel_result); | |
126 } | |
127 | |
128 TEST_F(LocalFileStreamWriterTest, CancelAfterFinishedOperation) { | |
129 base::FilePath path = CreateFileWithContent("file_a", std::string()); | |
130 scoped_ptr<LocalFileStreamWriter> writer(new LocalFileStreamWriter(path, 0)); | |
131 EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "foo")); | |
132 | |
133 // Cancel immediately fails when there's no in-flight operation. | |
134 int cancel_result = writer->Cancel(base::Bind(&NeverCalled)); | |
135 EXPECT_EQ(net::ERR_UNEXPECTED, cancel_result); | |
136 | |
137 writer.reset(); | |
138 base::MessageLoop::current()->RunUntilIdle(); | |
139 // Write operation is already completed. | |
140 EXPECT_TRUE(file_util::PathExists(path)); | |
141 EXPECT_EQ("foo", GetFileContent(path)); | |
142 } | |
143 | |
144 TEST_F(LocalFileStreamWriterTest, CancelWrite) { | |
145 base::FilePath path = CreateFileWithContent("file_a", "foobar"); | |
146 scoped_ptr<LocalFileStreamWriter> writer(new LocalFileStreamWriter(path, 0)); | |
147 | |
148 scoped_refptr<net::StringIOBuffer> buffer(new net::StringIOBuffer("xxx")); | |
149 int result = writer->Write(buffer, buffer->size(), base::Bind(&NeverCalled)); | |
150 ASSERT_EQ(net::ERR_IO_PENDING, result); | |
151 | |
152 net::TestCompletionCallback callback; | |
153 writer->Cancel(callback.callback()); | |
154 int cancel_result = callback.WaitForResult(); | |
155 EXPECT_EQ(net::OK, cancel_result); | |
156 } | |
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