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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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 #include "base/base64.h" | 5 #include "base/base64.h" |
6 #include "base/md5.h" | 6 #include "base/md5.h" |
7 #include "base/values.h" | 7 #include "base/values.h" |
8 #include "chrome/browser/metrics/metrics_log_serializer.h" | 8 #include "chrome/browser/metrics/metrics_log_serializer.h" |
9 #include "testing/gtest/include/gtest/gtest.h" | 9 #include "testing/gtest/include/gtest/gtest.h" |
10 | 10 |
11 namespace { | 11 namespace { |
12 | 12 |
13 const size_t kListLengthLimit = 3; | 13 const size_t kListLengthLimit = 3; |
14 const size_t kLogByteLimit = 1000; | 14 const size_t kLogByteLimit = 1000; |
15 | 15 |
16 void SetLogText(const std::string& log_text, | 16 void SetLogText(const std::string& log_text, |
17 MetricsLogManager::SerializedLog* log) { | 17 MetricsLogManager::SerializedLog* log) { |
18 std::string log_text_copy = log_text; | 18 std::string log_text_copy = log_text; |
19 log->SwapLogText(&log_text_copy); | 19 log->SwapLogText(&log_text_copy); |
20 } | 20 } |
21 | 21 |
22 } // namespace | 22 } // namespace |
23 | 23 |
24 // Store and retrieve empty list. | 24 // Store and retrieve empty list. |
25 TEST(MetricsLogSerializerTest, EmptyLogList) { | 25 TEST(MetricsLogSerializerTest, EmptyLogList) { |
26 ListValue list; | 26 base::ListValue list; |
27 std::vector<MetricsLogManager::SerializedLog> local_list; | 27 std::vector<MetricsLogManager::SerializedLog> local_list; |
28 | 28 |
29 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, | 29 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, |
30 kLogByteLimit, &list); | 30 kLogByteLimit, &list); |
31 EXPECT_EQ(0U, list.GetSize()); | 31 EXPECT_EQ(0U, list.GetSize()); |
32 | 32 |
33 local_list.clear(); // ReadLogsFromPrefList() expects empty |local_list|. | 33 local_list.clear(); // ReadLogsFromPrefList() expects empty |local_list|. |
34 EXPECT_EQ( | 34 EXPECT_EQ( |
35 MetricsLogSerializer::LIST_EMPTY, | 35 MetricsLogSerializer::LIST_EMPTY, |
36 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); | 36 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); |
37 EXPECT_EQ(0U, local_list.size()); | 37 EXPECT_EQ(0U, local_list.size()); |
38 } | 38 } |
39 | 39 |
40 // Store and retrieve a single log value. | 40 // Store and retrieve a single log value. |
41 TEST(MetricsLogSerializerTest, SingleElementLogList) { | 41 TEST(MetricsLogSerializerTest, SingleElementLogList) { |
42 ListValue list; | 42 base::ListValue list; |
43 | 43 |
44 std::vector<MetricsLogManager::SerializedLog> local_list(1); | 44 std::vector<MetricsLogManager::SerializedLog> local_list(1); |
45 SetLogText("Hello world!", &local_list[0]); | 45 SetLogText("Hello world!", &local_list[0]); |
46 | 46 |
47 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, | 47 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, |
48 kLogByteLimit, &list); | 48 kLogByteLimit, &list); |
49 | 49 |
50 // |list| will now contain the following: | 50 // |list| will now contain the following: |
51 // [1, Base64Encode("Hello world!"), MD5("Hello world!")]. | 51 // [1, Base64Encode("Hello world!"), MD5("Hello world!")]. |
52 ASSERT_EQ(3U, list.GetSize()); | 52 ASSERT_EQ(3U, list.GetSize()); |
53 | 53 |
54 // Examine each element. | 54 // Examine each element. |
55 ListValue::const_iterator it = list.begin(); | 55 base::ListValue::const_iterator it = list.begin(); |
56 int size = 0; | 56 int size = 0; |
57 (*it)->GetAsInteger(&size); | 57 (*it)->GetAsInteger(&size); |
58 EXPECT_EQ(1, size); | 58 EXPECT_EQ(1, size); |
59 | 59 |
60 ++it; | 60 ++it; |
61 std::string str; | 61 std::string str; |
62 (*it)->GetAsString(&str); // Base64 encoded "Hello world!" string. | 62 (*it)->GetAsString(&str); // Base64 encoded "Hello world!" string. |
63 std::string encoded; | 63 std::string encoded; |
64 base::Base64Encode("Hello world!", &encoded); | 64 base::Base64Encode("Hello world!", &encoded); |
65 EXPECT_TRUE(encoded == str); | 65 EXPECT_TRUE(encoded == str); |
66 | 66 |
67 ++it; | 67 ++it; |
68 (*it)->GetAsString(&str); // MD5 for encoded "Hello world!" string. | 68 (*it)->GetAsString(&str); // MD5 for encoded "Hello world!" string. |
69 EXPECT_TRUE(base::MD5String(encoded) == str); | 69 EXPECT_TRUE(base::MD5String(encoded) == str); |
70 | 70 |
71 ++it; | 71 ++it; |
72 EXPECT_TRUE(it == list.end()); // Reached end of list. | 72 EXPECT_TRUE(it == list.end()); // Reached end of list. |
73 | 73 |
74 local_list.clear(); | 74 local_list.clear(); |
75 EXPECT_EQ( | 75 EXPECT_EQ( |
76 MetricsLogSerializer::RECALL_SUCCESS, | 76 MetricsLogSerializer::RECALL_SUCCESS, |
77 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); | 77 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); |
78 EXPECT_EQ(1U, local_list.size()); | 78 EXPECT_EQ(1U, local_list.size()); |
79 } | 79 } |
80 | 80 |
81 // Store a set of logs over the length limit, but smaller than the min number of | 81 // Store a set of logs over the length limit, but smaller than the min number of |
82 // bytes. | 82 // bytes. |
83 TEST(MetricsLogSerializerTest, LongButTinyLogList) { | 83 TEST(MetricsLogSerializerTest, LongButTinyLogList) { |
84 ListValue list; | 84 base::ListValue list; |
85 | 85 |
86 size_t log_count = kListLengthLimit * 5; | 86 size_t log_count = kListLengthLimit * 5; |
87 std::vector<MetricsLogManager::SerializedLog> local_list(log_count); | 87 std::vector<MetricsLogManager::SerializedLog> local_list(log_count); |
88 for (size_t i = 0; i < local_list.size(); ++i) | 88 for (size_t i = 0; i < local_list.size(); ++i) |
89 SetLogText("x", &local_list[i]); | 89 SetLogText("x", &local_list[i]); |
90 | 90 |
91 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, | 91 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, |
92 kLogByteLimit, &list); | 92 kLogByteLimit, &list); |
93 std::vector<MetricsLogManager::SerializedLog> result_list; | 93 std::vector<MetricsLogManager::SerializedLog> result_list; |
94 EXPECT_EQ( | 94 EXPECT_EQ( |
95 MetricsLogSerializer::RECALL_SUCCESS, | 95 MetricsLogSerializer::RECALL_SUCCESS, |
96 MetricsLogSerializer::ReadLogsFromPrefList(list, &result_list)); | 96 MetricsLogSerializer::ReadLogsFromPrefList(list, &result_list)); |
97 EXPECT_EQ(local_list.size(), result_list.size()); | 97 EXPECT_EQ(local_list.size(), result_list.size()); |
98 | 98 |
99 EXPECT_TRUE(result_list.front().log_text().find("x") == 0); | 99 EXPECT_TRUE(result_list.front().log_text().find("x") == 0); |
100 } | 100 } |
101 | 101 |
102 // Store a set of logs over the length limit, but that doesn't reach the minimum | 102 // Store a set of logs over the length limit, but that doesn't reach the minimum |
103 // number of bytes until after passing the length limit. | 103 // number of bytes until after passing the length limit. |
104 TEST(MetricsLogSerializerTest, LongButSmallLogList) { | 104 TEST(MetricsLogSerializerTest, LongButSmallLogList) { |
105 ListValue list; | 105 base::ListValue list; |
106 | 106 |
107 size_t log_count = kListLengthLimit * 5; | 107 size_t log_count = kListLengthLimit * 5; |
108 // Make log_count logs each slightly larger than | 108 // Make log_count logs each slightly larger than |
109 // kLogByteLimit / (log_count - 2) | 109 // kLogByteLimit / (log_count - 2) |
110 // so that the minimum is reached before the oldest (first) two logs. | 110 // so that the minimum is reached before the oldest (first) two logs. |
111 std::vector<MetricsLogManager::SerializedLog> local_list(log_count); | 111 std::vector<MetricsLogManager::SerializedLog> local_list(log_count); |
112 size_t log_size = (kLogByteLimit / (log_count - 2)) + 2; | 112 size_t log_size = (kLogByteLimit / (log_count - 2)) + 2; |
113 SetLogText("one", &local_list[0]); | 113 SetLogText("one", &local_list[0]); |
114 SetLogText("two", &local_list[1]); | 114 SetLogText("two", &local_list[1]); |
115 SetLogText("three", &local_list[2]); | 115 SetLogText("three", &local_list[2]); |
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128 MetricsLogSerializer::ReadLogsFromPrefList(list, &result_list)); | 128 MetricsLogSerializer::ReadLogsFromPrefList(list, &result_list)); |
129 EXPECT_EQ(local_list.size() - 2, result_list.size()); | 129 EXPECT_EQ(local_list.size() - 2, result_list.size()); |
130 | 130 |
131 EXPECT_TRUE(result_list.front().log_text().find("three") == 0); | 131 EXPECT_TRUE(result_list.front().log_text().find("three") == 0); |
132 EXPECT_TRUE(result_list.back().log_text().find("last") == 0); | 132 EXPECT_TRUE(result_list.back().log_text().find("last") == 0); |
133 } | 133 } |
134 | 134 |
135 // Store a set of logs within the length limit, but well over the minimum | 135 // Store a set of logs within the length limit, but well over the minimum |
136 // number of bytes. | 136 // number of bytes. |
137 TEST(MetricsLogSerializerTest, ShortButLargeLogList) { | 137 TEST(MetricsLogSerializerTest, ShortButLargeLogList) { |
138 ListValue list; | 138 base::ListValue list; |
139 | 139 |
140 std::vector<MetricsLogManager::SerializedLog> local_list(kListLengthLimit); | 140 std::vector<MetricsLogManager::SerializedLog> local_list(kListLengthLimit); |
141 // Make the total byte count about twice the minimum. | 141 // Make the total byte count about twice the minimum. |
142 size_t log_size = (kLogByteLimit / local_list.size()) * 2; | 142 size_t log_size = (kLogByteLimit / local_list.size()) * 2; |
143 for (size_t i = 0; i < local_list.size(); ++i) { | 143 for (size_t i = 0; i < local_list.size(); ++i) { |
144 std::string log_text = local_list[i].log_text(); | 144 std::string log_text = local_list[i].log_text(); |
145 log_text.resize(log_size, ' '); | 145 log_text.resize(log_size, ' '); |
146 local_list[i].SwapLogText(&log_text); | 146 local_list[i].SwapLogText(&log_text); |
147 } | 147 } |
148 | 148 |
149 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, | 149 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, |
150 kLogByteLimit, &list); | 150 kLogByteLimit, &list); |
151 std::vector<MetricsLogManager::SerializedLog> result_list; | 151 std::vector<MetricsLogManager::SerializedLog> result_list; |
152 EXPECT_EQ( | 152 EXPECT_EQ( |
153 MetricsLogSerializer::RECALL_SUCCESS, | 153 MetricsLogSerializer::RECALL_SUCCESS, |
154 MetricsLogSerializer::ReadLogsFromPrefList(list, &result_list)); | 154 MetricsLogSerializer::ReadLogsFromPrefList(list, &result_list)); |
155 EXPECT_EQ(local_list.size(), result_list.size()); | 155 EXPECT_EQ(local_list.size(), result_list.size()); |
156 } | 156 } |
157 | 157 |
158 // Store a set of logs over the length limit, and over the minimum number of | 158 // Store a set of logs over the length limit, and over the minimum number of |
159 // bytes. | 159 // bytes. |
160 TEST(MetricsLogSerializerTest, LongAndLargeLogList) { | 160 TEST(MetricsLogSerializerTest, LongAndLargeLogList) { |
161 ListValue list; | 161 base::ListValue list; |
162 | 162 |
163 // Include twice the max number of logs. | 163 // Include twice the max number of logs. |
164 std::vector<MetricsLogManager::SerializedLog> | 164 std::vector<MetricsLogManager::SerializedLog> |
165 local_list(kListLengthLimit * 2); | 165 local_list(kListLengthLimit * 2); |
166 // Make the total byte count about four times the minimum. | 166 // Make the total byte count about four times the minimum. |
167 size_t log_size = (kLogByteLimit / local_list.size()) * 4; | 167 size_t log_size = (kLogByteLimit / local_list.size()) * 4; |
168 SetLogText("First to keep", | 168 SetLogText("First to keep", |
169 &local_list[local_list.size() - kListLengthLimit]); | 169 &local_list[local_list.size() - kListLengthLimit]); |
170 for (size_t i = 0; i < local_list.size(); ++i) { | 170 for (size_t i = 0; i < local_list.size(); ++i) { |
171 std::string log_text = local_list[i].log_text(); | 171 std::string log_text = local_list[i].log_text(); |
172 log_text.resize(log_size, ' '); | 172 log_text.resize(log_size, ' '); |
173 local_list[i].SwapLogText(&log_text); | 173 local_list[i].SwapLogText(&log_text); |
174 } | 174 } |
175 | 175 |
176 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, | 176 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, |
177 kLogByteLimit, &list); | 177 kLogByteLimit, &list); |
178 std::vector<MetricsLogManager::SerializedLog> result_list; | 178 std::vector<MetricsLogManager::SerializedLog> result_list; |
179 EXPECT_EQ( | 179 EXPECT_EQ( |
180 MetricsLogSerializer::RECALL_SUCCESS, | 180 MetricsLogSerializer::RECALL_SUCCESS, |
181 MetricsLogSerializer::ReadLogsFromPrefList(list, &result_list)); | 181 MetricsLogSerializer::ReadLogsFromPrefList(list, &result_list)); |
182 // The max length should control the resulting size. | 182 // The max length should control the resulting size. |
183 EXPECT_EQ(kListLengthLimit, result_list.size()); | 183 EXPECT_EQ(kListLengthLimit, result_list.size()); |
184 EXPECT_TRUE(result_list.front().log_text().find("First to keep") == 0); | 184 EXPECT_TRUE(result_list.front().log_text().find("First to keep") == 0); |
185 } | 185 } |
186 | 186 |
187 // Induce LIST_SIZE_TOO_SMALL corruption | 187 // Induce LIST_SIZE_TOO_SMALL corruption |
188 TEST(MetricsLogSerializerTest, SmallRecoveredListSize) { | 188 TEST(MetricsLogSerializerTest, SmallRecoveredListSize) { |
189 ListValue list; | 189 base::ListValue list; |
190 | 190 |
191 std::vector<MetricsLogManager::SerializedLog> local_list(1); | 191 std::vector<MetricsLogManager::SerializedLog> local_list(1); |
192 SetLogText("Hello world!", &local_list[0]); | 192 SetLogText("Hello world!", &local_list[0]); |
193 | 193 |
194 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, | 194 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, |
195 kLogByteLimit, &list); | 195 kLogByteLimit, &list); |
196 EXPECT_EQ(3U, list.GetSize()); | 196 EXPECT_EQ(3U, list.GetSize()); |
197 | 197 |
198 // Remove last element. | 198 // Remove last element. |
199 list.Remove(list.GetSize() - 1, NULL); | 199 list.Remove(list.GetSize() - 1, NULL); |
200 EXPECT_EQ(2U, list.GetSize()); | 200 EXPECT_EQ(2U, list.GetSize()); |
201 | 201 |
202 local_list.clear(); | 202 local_list.clear(); |
203 EXPECT_EQ( | 203 EXPECT_EQ( |
204 MetricsLogSerializer::LIST_SIZE_TOO_SMALL, | 204 MetricsLogSerializer::LIST_SIZE_TOO_SMALL, |
205 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); | 205 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); |
206 } | 206 } |
207 | 207 |
208 // Remove size from the stored list. | 208 // Remove size from the stored list. |
209 TEST(MetricsLogSerializerTest, RemoveSizeFromLogList) { | 209 TEST(MetricsLogSerializerTest, RemoveSizeFromLogList) { |
210 ListValue list; | 210 base::ListValue list; |
211 | 211 |
212 std::vector<MetricsLogManager::SerializedLog> local_list(2); | 212 std::vector<MetricsLogManager::SerializedLog> local_list(2); |
213 SetLogText("one", &local_list[0]); | 213 SetLogText("one", &local_list[0]); |
214 SetLogText("two", &local_list[1]); | 214 SetLogText("two", &local_list[1]); |
215 EXPECT_EQ(2U, local_list.size()); | 215 EXPECT_EQ(2U, local_list.size()); |
216 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, | 216 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, |
217 kLogByteLimit, &list); | 217 kLogByteLimit, &list); |
218 EXPECT_EQ(4U, list.GetSize()); | 218 EXPECT_EQ(4U, list.GetSize()); |
219 | 219 |
220 list.Remove(0, NULL); // Delete size (1st element). | 220 list.Remove(0, NULL); // Delete size (1st element). |
221 EXPECT_EQ(3U, list.GetSize()); | 221 EXPECT_EQ(3U, list.GetSize()); |
222 | 222 |
223 local_list.clear(); | 223 local_list.clear(); |
224 EXPECT_EQ( | 224 EXPECT_EQ( |
225 MetricsLogSerializer::LIST_SIZE_MISSING, | 225 MetricsLogSerializer::LIST_SIZE_MISSING, |
226 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); | 226 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); |
227 } | 227 } |
228 | 228 |
229 // Corrupt size of stored list. | 229 // Corrupt size of stored list. |
230 TEST(MetricsLogSerializerTest, CorruptSizeOfLogList) { | 230 TEST(MetricsLogSerializerTest, CorruptSizeOfLogList) { |
231 ListValue list; | 231 base::ListValue list; |
232 | 232 |
233 std::vector<MetricsLogManager::SerializedLog> local_list(1); | 233 std::vector<MetricsLogManager::SerializedLog> local_list(1); |
234 SetLogText("Hello world!", &local_list[0]); | 234 SetLogText("Hello world!", &local_list[0]); |
235 | 235 |
236 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, | 236 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, |
237 kLogByteLimit, &list); | 237 kLogByteLimit, &list); |
238 EXPECT_EQ(3U, list.GetSize()); | 238 EXPECT_EQ(3U, list.GetSize()); |
239 | 239 |
240 // Change list size from 1 to 2. | 240 // Change list size from 1 to 2. |
241 EXPECT_TRUE(list.Set(0, Value::CreateIntegerValue(2))); | 241 EXPECT_TRUE(list.Set(0, base::Value::CreateIntegerValue(2))); |
242 EXPECT_EQ(3U, list.GetSize()); | 242 EXPECT_EQ(3U, list.GetSize()); |
243 | 243 |
244 local_list.clear(); | 244 local_list.clear(); |
245 EXPECT_EQ( | 245 EXPECT_EQ( |
246 MetricsLogSerializer::LIST_SIZE_CORRUPTION, | 246 MetricsLogSerializer::LIST_SIZE_CORRUPTION, |
247 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); | 247 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); |
248 } | 248 } |
249 | 249 |
250 // Corrupt checksum of stored list. | 250 // Corrupt checksum of stored list. |
251 TEST(MetricsLogSerializerTest, CorruptChecksumOfLogList) { | 251 TEST(MetricsLogSerializerTest, CorruptChecksumOfLogList) { |
252 ListValue list; | 252 base::ListValue list; |
253 | 253 |
254 std::vector<MetricsLogManager::SerializedLog> local_list(1); | 254 std::vector<MetricsLogManager::SerializedLog> local_list(1); |
255 SetLogText("Hello world!", &local_list[0]); | 255 SetLogText("Hello world!", &local_list[0]); |
256 | 256 |
257 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, | 257 MetricsLogSerializer::WriteLogsToPrefList(local_list, kListLengthLimit, |
258 kLogByteLimit, &list); | 258 kLogByteLimit, &list); |
259 EXPECT_EQ(3U, list.GetSize()); | 259 EXPECT_EQ(3U, list.GetSize()); |
260 | 260 |
261 // Fetch checksum (last element) and change it. | 261 // Fetch checksum (last element) and change it. |
262 std::string checksum; | 262 std::string checksum; |
263 EXPECT_TRUE((*(list.end() - 1))->GetAsString(&checksum)); | 263 EXPECT_TRUE((*(list.end() - 1))->GetAsString(&checksum)); |
264 checksum[0] = (checksum[0] == 'a') ? 'b' : 'a'; | 264 checksum[0] = (checksum[0] == 'a') ? 'b' : 'a'; |
265 EXPECT_TRUE(list.Set(2, Value::CreateStringValue(checksum))); | 265 EXPECT_TRUE(list.Set(2, base::Value::CreateStringValue(checksum))); |
266 EXPECT_EQ(3U, list.GetSize()); | 266 EXPECT_EQ(3U, list.GetSize()); |
267 | 267 |
268 local_list.clear(); | 268 local_list.clear(); |
269 EXPECT_EQ( | 269 EXPECT_EQ( |
270 MetricsLogSerializer::CHECKSUM_CORRUPTION, | 270 MetricsLogSerializer::CHECKSUM_CORRUPTION, |
271 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); | 271 MetricsLogSerializer::ReadLogsFromPrefList(list, &local_list)); |
272 } | 272 } |
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