OLD | NEW |
1 // Copyright (c) 2009 The Chromium OS Authors. All rights reserved. | 1 // Copyright (c) 2009 The Chromium OS Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef UPDATE_ENGINE_TEST_UTILS_H__ | 5 #ifndef CHROMEOS_PLATFORM_UPDATE_ENGINE_TEST_UTILS_H__ |
6 #define UPDATE_ENGINE_TEST_UTILS_H__ | 6 #define CHROMEOS_PLATFORM_UPDATE_ENGINE_TEST_UTILS_H__ |
7 | 7 |
| 8 #include <set> |
| 9 #include <string> |
8 #include <vector> | 10 #include <vector> |
9 #include <string> | 11 #include <gtest/gtest.h> |
| 12 #include "update_engine/action.h" |
10 | 13 |
11 // These are some handy functions for unittests. | 14 // These are some handy functions for unittests. |
12 | 15 |
13 namespace chromeos_update_engine { | 16 namespace chromeos_update_engine { |
14 | 17 |
15 // Returns the entire contents of the file at path. If the file doesn't | |
16 // exist or error occurrs, an empty vector is returned. | |
17 std::vector<char> ReadFile(const std::string& path); | |
18 | |
19 // Writes the data passed to path. The file at path will be overwritten if it | 18 // Writes the data passed to path. The file at path will be overwritten if it |
20 // exists. Returns true on success, false otherwise. | 19 // exists. Returns true on success, false otherwise. |
21 bool WriteFile(const std::string& path, const std::vector<char>& data); | 20 bool WriteFile(const char* path, const char* data, int data_len); |
| 21 bool WriteFileVector(const std::string& path, const std::vector<char>& data); |
| 22 bool WriteFileString(const std::string& path, const std::string& data); |
22 | 23 |
23 // Returns the size of the file at path. If the file doesn't exist or some | 24 // Returns the size of the file at path. If the file doesn't exist or some |
24 // error occurrs, -1 is returned. | 25 // error occurrs, -1 is returned. |
25 off_t FileSize(const std::string& path); | 26 off_t FileSize(const std::string& path); |
26 | 27 |
| 28 // Reads a symlink from disk. Returns empty string on failure. |
| 29 std::string Readlink(const std::string& path); |
| 30 |
27 // Gzip compresses the data passed using the gzip command line program. | 31 // Gzip compresses the data passed using the gzip command line program. |
28 // Returns compressed data back. | 32 // Returns compressed data back. |
29 std::vector<char> GzipCompressData(const std::vector<char>& data); | 33 std::vector<char> GzipCompressData(const std::vector<char>& data); |
30 | 34 |
| 35 // Gives back a 512-bytes length array that contains an MBR with |
| 36 // the first partition is marked bootable. |
| 37 std::vector<char> GenerateSampleMbr(); |
| 38 |
| 39 std::string GetUnusedLoopDevice(); |
| 40 |
| 41 // Returns true iff a == b |
| 42 bool ExpectVectorsEq(const std::vector<char>& a, const std::vector<char>& b); |
| 43 |
| 44 inline int System(const std::string& cmd) { |
| 45 return system(cmd.c_str()); |
| 46 } |
| 47 |
| 48 namespace { |
| 49 // 300 byte pseudo-random string. Not null terminated. |
| 50 // This does not gzip compress well. |
| 51 const unsigned char kRandomString[] = { |
| 52 0xf2, 0xb7, 0x55, 0x92, 0xea, 0xa6, 0xc9, 0x57, |
| 53 0xe0, 0xf8, 0xeb, 0x34, 0x93, 0xd9, 0xc4, 0x8f, |
| 54 0xcb, 0x20, 0xfa, 0x37, 0x4b, 0x40, 0xcf, 0xdc, |
| 55 0xa5, 0x08, 0x70, 0x89, 0x79, 0x35, 0xe2, 0x3d, |
| 56 0x56, 0xa4, 0x75, 0x73, 0xa3, 0x6d, 0xd1, 0xd5, |
| 57 0x26, 0xbb, 0x9c, 0x60, 0xbd, 0x2f, 0x5a, 0xfa, |
| 58 0xb7, 0xd4, 0x3a, 0x50, 0xa7, 0x6b, 0x3e, 0xfd, |
| 59 0x61, 0x2b, 0x3a, 0x31, 0x30, 0x13, 0x33, 0x53, |
| 60 0xdb, 0xd0, 0x32, 0x71, 0x5c, 0x39, 0xed, 0xda, |
| 61 0xb4, 0x84, 0xca, 0xbc, 0xbd, 0x78, 0x1c, 0x0c, |
| 62 0xd8, 0x0b, 0x41, 0xe8, 0xe1, 0xe0, 0x41, 0xad, |
| 63 0x03, 0x12, 0xd3, 0x3d, 0xb8, 0x75, 0x9b, 0xe6, |
| 64 0xd9, 0x01, 0xd0, 0x87, 0xf4, 0x36, 0xfa, 0xa7, |
| 65 0x0a, 0xfa, 0xc5, 0x87, 0x65, 0xab, 0x9a, 0x7b, |
| 66 0xeb, 0x58, 0x23, 0xf0, 0xa8, 0x0a, 0xf2, 0x33, |
| 67 0x3a, 0xe2, 0xe3, 0x35, 0x74, 0x95, 0xdd, 0x3c, |
| 68 0x59, 0x5a, 0xd9, 0x52, 0x3a, 0x3c, 0xac, 0xe5, |
| 69 0x15, 0x87, 0x6d, 0x82, 0xbc, 0xf8, 0x7d, 0xbe, |
| 70 0xca, 0xd3, 0x2c, 0xd6, 0xec, 0x38, 0xeb, 0xe4, |
| 71 0x53, 0xb0, 0x4c, 0x3f, 0x39, 0x29, 0xf7, 0xa4, |
| 72 0x73, 0xa8, 0xcb, 0x32, 0x50, 0x05, 0x8c, 0x1c, |
| 73 0x1c, 0xca, 0xc9, 0x76, 0x0b, 0x8f, 0x6b, 0x57, |
| 74 0x1f, 0x24, 0x2b, 0xba, 0x82, 0xba, 0xed, 0x58, |
| 75 0xd8, 0xbf, 0xec, 0x06, 0x64, 0x52, 0x6a, 0x3f, |
| 76 0xe4, 0xad, 0xce, 0x84, 0xb4, 0x27, 0x55, 0x14, |
| 77 0xe3, 0x75, 0x59, 0x73, 0x71, 0x51, 0xea, 0xe8, |
| 78 0xcc, 0xda, 0x4f, 0x09, 0xaf, 0xa4, 0xbc, 0x0e, |
| 79 0xa6, 0x1f, 0xe2, 0x3a, 0xf8, 0x96, 0x7d, 0x30, |
| 80 0x23, 0xc5, 0x12, 0xb5, 0xd8, 0x73, 0x6b, 0x71, |
| 81 0xab, 0xf1, 0xd7, 0x43, 0x58, 0xa7, 0xc9, 0xf0, |
| 82 0xe4, 0x85, 0x1c, 0xd6, 0x92, 0x50, 0x2c, 0x98, |
| 83 0x36, 0xfe, 0x87, 0xaf, 0x43, 0x8f, 0x8f, 0xf5, |
| 84 0x88, 0x48, 0x18, 0x42, 0xcf, 0x42, 0xc1, 0xa8, |
| 85 0xe8, 0x05, 0x08, 0xa1, 0x45, 0x70, 0x5b, 0x8c, |
| 86 0x39, 0x28, 0xab, 0xe9, 0x6b, 0x51, 0xd2, 0xcb, |
| 87 0x30, 0x04, 0xea, 0x7d, 0x2f, 0x6e, 0x6c, 0x3b, |
| 88 0x5f, 0x82, 0xd9, 0x5b, 0x89, 0x37, 0x65, 0x65, |
| 89 0xbe, 0x9f, 0xa3, 0x5d |
| 90 }; |
| 91 |
| 92 const string kMountPath("/tmp/UpdateEngineTests_mnt"); |
| 93 } // namespace {} |
| 94 |
| 95 // Creates an ext image with some files in it. The paths creates are |
| 96 // returned in out_paths. |
| 97 void CreateExtImageAtPath(const std::string& path, |
| 98 std::vector<std::string>* out_paths); |
| 99 |
| 100 // Verifies that for each path in paths, it exists in the filesystem under |
| 101 // parent. Also, verifies that no additional paths are present under parent. |
| 102 // Also tests properties of various files created by CreateExtImageAtPath(). |
| 103 // Intentionally copies expected_paths. |
| 104 void VerifyAllPaths(const std::string& parent, |
| 105 std::set<std::string> expected_paths); |
| 106 |
| 107 // Useful actions for test |
| 108 |
| 109 class NoneType; |
| 110 |
| 111 template<typename T> |
| 112 class ObjectFeederAction; |
| 113 |
| 114 template<typename T> |
| 115 class ActionTraits<ObjectFeederAction<T> > { |
| 116 public: |
| 117 typedef T OutputObjectType; |
| 118 typedef NoneType InputObjectType; |
| 119 }; |
| 120 |
| 121 // This is a simple Action class for testing. It feeds an object into |
| 122 // another action. |
| 123 template<typename T> |
| 124 struct ObjectFeederAction : public Action<ObjectFeederAction<T> > { |
| 125 public: |
| 126 typedef NoneType InputObjectType; |
| 127 typedef T OutputObjectType; |
| 128 void PerformAction() { |
| 129 LOG(INFO) << "feeder running!"; |
| 130 CHECK(this->processor_); |
| 131 if (this->HasOutputPipe()) { |
| 132 this->SetOutputObject(out_obj_); |
| 133 } |
| 134 this->processor_->ActionComplete(this, true); |
| 135 } |
| 136 static std::string StaticType() { return "ObjectFeederAction"; } |
| 137 std::string Type() const { return StaticType(); } |
| 138 void set_obj(const T& out_obj) { |
| 139 out_obj_ = out_obj; |
| 140 } |
| 141 private: |
| 142 T out_obj_; |
| 143 }; |
| 144 |
| 145 template<typename T> |
| 146 class ObjectCollectorAction; |
| 147 |
| 148 template<typename T> |
| 149 class ActionTraits<ObjectCollectorAction<T> > { |
| 150 public: |
| 151 typedef NoneType OutputObjectType; |
| 152 typedef T InputObjectType; |
| 153 }; |
| 154 |
| 155 // This is a simple Action class for testing. It receives an object from |
| 156 // another action. |
| 157 template<typename T> |
| 158 struct ObjectCollectorAction : public Action<ObjectCollectorAction<T> > { |
| 159 public: |
| 160 typedef T InputObjectType; |
| 161 typedef NoneType OutputObjectType; |
| 162 void PerformAction() { |
| 163 LOG(INFO) << "collector running!"; |
| 164 ASSERT_TRUE(this->processor_); |
| 165 if (this->HasInputObject()) { |
| 166 object_ = this->GetInputObject(); |
| 167 } |
| 168 this->processor_->ActionComplete(this, true); |
| 169 } |
| 170 static std::string StaticType() { return "ObjectCollectorAction"; } |
| 171 std::string Type() const { return StaticType(); } |
| 172 const T& object() const { return object_; } |
| 173 private: |
| 174 T object_; |
| 175 }; |
| 176 |
31 } // namespace chromeos_update_engine | 177 } // namespace chromeos_update_engine |
32 | 178 |
33 #endif // UPDATE_ENGINE_TEST_UTILS_H__ | 179 #endif // CHROMEOS_PLATFORM_UPDATE_ENGINE_TEST_UTILS_H__ |
OLD | NEW |