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1 /* | |
2 * Copyright 2016 The WebRTC Project Authors. All rights reserved. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license | |
5 * that can be found in the LICENSE file in the root of the source | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #include <limits> | |
12 #include <memory> | |
13 #include <string> | |
14 | |
15 #include "webrtc/base/gunit.h" | |
16 #include "webrtc/base/file.h" | |
17 #include "webrtc/test/testsupport/fileutils.h" | |
18 | |
19 #if defined(WEBRTC_WIN) | |
20 | |
21 #include "webrtc/base/win32.h" | |
22 | |
23 #else // if defined(WEBRTC_WIN) | |
24 | |
25 #include <errno.h> | |
26 | |
27 #endif | |
28 | |
29 namespace rtc { | |
30 | |
31 int LastError() { | |
32 #if defined(WEBRTC_WIN) | |
33 return ::GetLastError(); | |
34 #else | |
35 return errno; | |
36 #endif | |
37 } | |
38 | |
39 bool VerifyBuffer(uint8_t* buffer, size_t length, uint8_t start_value) { | |
40 for (size_t i = 0; i < length; ++i) { | |
41 uint8_t val = start_value++; | |
42 EXPECT_EQ(val, buffer[i]); | |
43 if (buffer[i] != val) | |
44 return false; | |
45 } | |
46 // Prevent the same buffer from being verified multiple times simply | |
47 // because some operation that should have written to it failed | |
48 memset(buffer, 0, length); | |
49 return true; | |
50 } | |
51 | |
52 class FileTest : public ::testing::Test { | |
53 protected: | |
54 std::string path_; | |
55 void SetUp() override { | |
56 path_ = webrtc::test::TempFilename(webrtc::test::OutputPath(), "test_file"); | |
57 ASSERT_FALSE(path_.empty()); | |
58 } | |
59 void TearDown() override { RemoveFile(path_); } | |
60 }; | |
61 | |
62 TEST_F(FileTest, DefaultConstructor) { | |
63 File file; | |
64 uint8_t buffer[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; | |
65 | |
66 EXPECT_FALSE(file.IsOpen()); | |
67 EXPECT_EQ(0u, file.Write(buffer, 10)); | |
68 EXPECT_FALSE(file.Seek(0)); | |
69 EXPECT_EQ(0u, file.Read(buffer, 10)); | |
70 EXPECT_EQ(0u, file.WriteAt(buffer, 10, 0)); | |
71 EXPECT_EQ(0u, file.ReadAt(buffer, 10, 0)); | |
72 EXPECT_FALSE(file.Close()); | |
73 } | |
74 | |
75 TEST_F(FileTest, DoubleClose) { | |
76 File file = File::Open(path_); | |
77 ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError(); | |
78 | |
79 EXPECT_TRUE(file.Close()); | |
80 EXPECT_FALSE(file.Close()); | |
81 } | |
82 | |
83 TEST_F(FileTest, SimpleReadWrite) { | |
84 File file = File::Open(path_); | |
85 ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError(); | |
86 | |
87 uint8_t data[100] = {0}; | |
88 uint8_t out[100] = {0}; | |
89 for (int i = 0; i < 100; ++i) { | |
90 data[i] = i; | |
91 } | |
92 | |
93 EXPECT_EQ(10u, file.Write(data, 10)); | |
94 | |
95 EXPECT_TRUE(file.Seek(0)); | |
96 EXPECT_EQ(10u, file.Read(out, 10)); | |
97 EXPECT_TRUE(VerifyBuffer(out, 10, 0)); | |
98 | |
99 EXPECT_TRUE(file.Seek(0)); | |
100 EXPECT_EQ(100u, file.Write(data, 100)); | |
101 | |
102 EXPECT_TRUE(file.Seek(0)); | |
103 EXPECT_EQ(100u, file.Read(out, 100)); | |
104 EXPECT_TRUE(VerifyBuffer(out, 100, 0)); | |
105 | |
106 EXPECT_TRUE(file.Seek(1)); | |
107 EXPECT_EQ(50u, file.Write(data, 50)); | |
108 EXPECT_EQ(50u, file.Write(data + 50, 50)); | |
109 | |
110 EXPECT_TRUE(file.Seek(1)); | |
111 EXPECT_EQ(100u, file.Read(out, 100)); | |
112 EXPECT_TRUE(VerifyBuffer(out, 100, 0)); | |
113 } | |
114 | |
115 TEST_F(FileTest, ReadWriteClose) { | |
116 File file = File::Open(path_); | |
117 ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError(); | |
118 | |
119 uint8_t data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; | |
120 uint8_t out[10] = {0}; | |
121 EXPECT_EQ(10u, file.Write(data, 10)); | |
122 EXPECT_TRUE(file.Close()); | |
123 | |
124 File file2 = File::Open(path_); | |
125 ASSERT_TRUE(file2.IsOpen()) << "Error: " << LastError(); | |
126 EXPECT_EQ(10u, file2.Read(out, 10)); | |
127 EXPECT_TRUE(VerifyBuffer(out, 10, 0)); | |
128 } | |
129 | |
130 TEST_F(FileTest, RandomAccessRead) { | |
131 File file = File::Open(path_); | |
132 ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError(); | |
133 | |
134 uint8_t data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; | |
135 uint8_t out[10] = {0}; | |
136 EXPECT_EQ(10u, file.Write(data, 10)); | |
137 | |
138 EXPECT_EQ(4u, file.ReadAt(out, 4, 0)); | |
139 EXPECT_TRUE(VerifyBuffer(out, 4, 0)); | |
140 | |
141 EXPECT_EQ(4u, file.ReadAt(out, 4, 4)); | |
142 EXPECT_TRUE(VerifyBuffer(out, 4, 4)); | |
143 | |
144 EXPECT_EQ(5u, file.ReadAt(out, 5, 5)); | |
145 EXPECT_TRUE(VerifyBuffer(out, 5, 5)); | |
146 } | |
147 | |
148 TEST_F(FileTest, RandomAccessReadWrite) { | |
149 File file = File::Open(path_); | |
150 ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError(); | |
151 | |
152 uint8_t data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; | |
153 uint8_t out[10] = {0}; | |
154 EXPECT_EQ(10u, file.Write(data, 10)); | |
155 EXPECT_TRUE(file.Seek(4)); | |
156 | |
157 EXPECT_EQ(4u, file.WriteAt(data, 4, 4)); | |
158 EXPECT_EQ(4u, file.ReadAt(out, 4, 4)); | |
159 EXPECT_TRUE(VerifyBuffer(out, 4, 0)); | |
160 | |
161 EXPECT_EQ(2u, file.WriteAt(data, 2, 8)); | |
162 EXPECT_EQ(2u, file.ReadAt(out, 2, 8)); | |
163 EXPECT_TRUE(VerifyBuffer(out, 2, 0)); | |
164 } | |
165 | |
166 TEST_F(FileTest, OpenFromPathname) { | |
167 { | |
168 File file = File::Open(Pathname(path_)); | |
169 ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError(); | |
170 } | |
171 | |
172 { | |
173 Pathname path(path_); | |
174 File file = File::Open(path); | |
175 ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError(); | |
176 } | |
177 } | |
178 | |
179 TEST_F(FileTest, CreateFromPathname) { | |
180 { | |
181 File file = File::Create(Pathname(path_)); | |
182 ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError(); | |
183 } | |
184 | |
185 { | |
186 Pathname path(path_); | |
187 File file = File::Create(path); | |
188 ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError(); | |
189 } | |
190 } | |
191 | |
192 TEST_F(FileTest, ShouldBeAbleToRemoveFile) { | |
193 { | |
194 File file = File::Open(Pathname(path_)); | |
195 ASSERT_TRUE(file.IsOpen()) << "Error: " << LastError(); | |
196 } | |
197 | |
198 ASSERT_TRUE(File::Remove(Pathname(path_))) << "Error: " << LastError(); | |
199 } | |
200 | |
201 } // namespace rtc | |
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