| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "components/user_prefs/tracked/pref_hash_calculator.h" |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "base/memory/ptr_util.h" |
| #include "base/strings/string_util.h" |
| #include "base/values.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| TEST(PrefHashCalculatorTest, TestCurrentAlgorithm) { |
| base::StringValue string_value_1("string value 1"); |
| base::StringValue string_value_2("string value 2"); |
| base::DictionaryValue dictionary_value_1; |
| dictionary_value_1.SetInteger("int value", 1); |
| dictionary_value_1.Set("nested empty map", new base::DictionaryValue); |
| base::DictionaryValue dictionary_value_1_equivalent; |
| dictionary_value_1_equivalent.SetInteger("int value", 1); |
| base::DictionaryValue dictionary_value_2; |
| dictionary_value_2.SetInteger("int value", 2); |
| |
| PrefHashCalculator calc1("seed1", "deviceid"); |
| PrefHashCalculator calc1_dup("seed1", "deviceid"); |
| PrefHashCalculator calc2("seed2", "deviceid"); |
| PrefHashCalculator calc3("seed1", "deviceid2"); |
| |
| // Two calculators with same seed produce same hash. |
| ASSERT_EQ(calc1.Calculate("pref_path", &string_value_1), |
| calc1_dup.Calculate("pref_path", &string_value_1)); |
| ASSERT_EQ(PrefHashCalculator::VALID, |
| calc1_dup.Validate("pref_path", &string_value_1, |
| calc1.Calculate("pref_path", &string_value_1))); |
| |
| // Different seeds, different hashes. |
| ASSERT_NE(calc1.Calculate("pref_path", &string_value_1), |
| calc2.Calculate("pref_path", &string_value_1)); |
| ASSERT_EQ(PrefHashCalculator::INVALID, |
| calc2.Validate("pref_path", &string_value_1, |
| calc1.Calculate("pref_path", &string_value_1))); |
| |
| // Different device IDs, different hashes. |
| ASSERT_NE(calc1.Calculate("pref_path", &string_value_1), |
| calc3.Calculate("pref_path", &string_value_1)); |
| |
| // Different values, different hashes. |
| ASSERT_NE(calc1.Calculate("pref_path", &string_value_1), |
| calc1.Calculate("pref_path", &string_value_2)); |
| |
| // Different paths, different hashes. |
| ASSERT_NE(calc1.Calculate("pref_path", &string_value_1), |
| calc1.Calculate("pref_path_2", &string_value_1)); |
| |
| // Works for dictionaries. |
| ASSERT_EQ(calc1.Calculate("pref_path", &dictionary_value_1), |
| calc1.Calculate("pref_path", &dictionary_value_1)); |
| ASSERT_NE(calc1.Calculate("pref_path", &dictionary_value_1), |
| calc1.Calculate("pref_path", &dictionary_value_2)); |
| |
| // Empty dictionary children are pruned. |
| ASSERT_EQ(calc1.Calculate("pref_path", &dictionary_value_1), |
| calc1.Calculate("pref_path", &dictionary_value_1_equivalent)); |
| |
| // NULL value is supported. |
| ASSERT_FALSE(calc1.Calculate("pref_path", NULL).empty()); |
| } |
| |
| // Tests the output against a known value to catch unexpected algorithm changes. |
| // The test hashes below must NEVER be updated, the serialization algorithm used |
| // must always be able to generate data that will produce these exact hashes. |
| TEST(PrefHashCalculatorTest, CatchHashChanges) { |
| static const char kSeed[] = "0123456789ABCDEF0123456789ABCDEF"; |
| static const char kDeviceId[] = "test_device_id1"; |
| |
| std::unique_ptr<base::Value> null_value = base::Value::CreateNullValue(); |
| std::unique_ptr<base::Value> bool_value(new base::FundamentalValue(false)); |
| std::unique_ptr<base::Value> int_value( |
| new base::FundamentalValue(1234567890)); |
| std::unique_ptr<base::Value> double_value( |
| new base::FundamentalValue(123.0987654321)); |
| std::unique_ptr<base::Value> string_value( |
| new base::StringValue("testing with special chars:\n<>{}:^^@#$\\/")); |
| |
| // For legacy reasons, we have to support pruning of empty lists/dictionaries |
| // and nested empty ists/dicts in the hash generation algorithm. |
| std::unique_ptr<base::DictionaryValue> nested_empty_dict( |
| new base::DictionaryValue); |
| nested_empty_dict->Set("a", new base::DictionaryValue); |
| nested_empty_dict->Set("b", new base::ListValue); |
| std::unique_ptr<base::ListValue> nested_empty_list(new base::ListValue); |
| nested_empty_list->Append(base::MakeUnique<base::DictionaryValue>()); |
| nested_empty_list->Append(base::MakeUnique<base::ListValue>()); |
| nested_empty_list->Append(nested_empty_dict->CreateDeepCopy()); |
| |
| // A dictionary with an empty dictionary, an empty list, and nested empty |
| // dictionaries/lists in it. |
| std::unique_ptr<base::DictionaryValue> dict_value(new base::DictionaryValue); |
| dict_value->Set("a", new base::StringValue("foo")); |
| dict_value->Set("d", new base::ListValue); |
| dict_value->Set("b", new base::DictionaryValue); |
| dict_value->Set("c", new base::StringValue("baz")); |
| dict_value->Set("e", nested_empty_dict.release()); |
| dict_value->Set("f", nested_empty_list.release()); |
| |
| std::unique_ptr<base::ListValue> list_value(new base::ListValue); |
| list_value->AppendBoolean(true); |
| list_value->AppendInteger(100); |
| list_value->AppendDouble(1.0); |
| |
| ASSERT_EQ(base::Value::TYPE_NULL, null_value->GetType()); |
| ASSERT_EQ(base::Value::TYPE_BOOLEAN, bool_value->GetType()); |
| ASSERT_EQ(base::Value::TYPE_INTEGER, int_value->GetType()); |
| ASSERT_EQ(base::Value::TYPE_DOUBLE, double_value->GetType()); |
| ASSERT_EQ(base::Value::TYPE_STRING, string_value->GetType()); |
| ASSERT_EQ(base::Value::TYPE_DICTIONARY, dict_value->GetType()); |
| ASSERT_EQ(base::Value::TYPE_LIST, list_value->GetType()); |
| |
| // Test every value type independently. Intentionally omits TYPE_BINARY which |
| // isn't even allowed in JSONWriter's input. |
| static const char kExpectedNullValue[] = |
| "82A9F3BBC7F9FF84C76B033C854E79EEB162783FA7B3E99FF9372FA8E12C44F7"; |
| EXPECT_EQ(PrefHashCalculator::VALID, |
| PrefHashCalculator(kSeed, kDeviceId) |
| .Validate("pref.path", null_value.get(), kExpectedNullValue)); |
| |
| static const char kExpectedBooleanValue[] = |
| "A520D8F43EA307B0063736DC9358C330539D0A29417580514C8B9862632C4CCC"; |
| EXPECT_EQ( |
| PrefHashCalculator::VALID, |
| PrefHashCalculator(kSeed, kDeviceId) |
| .Validate("pref.path", bool_value.get(), kExpectedBooleanValue)); |
| |
| static const char kExpectedIntegerValue[] = |
| "8D60DA1F10BF5AA29819D2D66D7CCEF9AABC5DA93C11A0D2BD21078D63D83682"; |
| EXPECT_EQ(PrefHashCalculator::VALID, |
| PrefHashCalculator(kSeed, kDeviceId) |
| .Validate("pref.path", int_value.get(), kExpectedIntegerValue)); |
| |
| static const char kExpectedDoubleValue[] = |
| "C9D94772516125BEEDAE68C109D44BC529E719EE020614E894CC7FB4098C545D"; |
| EXPECT_EQ( |
| PrefHashCalculator::VALID, |
| PrefHashCalculator(kSeed, kDeviceId) |
| .Validate("pref.path", double_value.get(), kExpectedDoubleValue)); |
| |
| static const char kExpectedStringValue[] = |
| "05ACCBD3B05C45C36CD06190F63EC577112311929D8380E26E5F13182EB68318"; |
| EXPECT_EQ( |
| PrefHashCalculator::VALID, |
| PrefHashCalculator(kSeed, kDeviceId) |
| .Validate("pref.path", string_value.get(), kExpectedStringValue)); |
| |
| static const char kExpectedDictValue[] = |
| "7A84DCC710D796C771F789A4DA82C952095AA956B6F1667EE42D0A19ECAA3C4A"; |
| EXPECT_EQ(PrefHashCalculator::VALID, |
| PrefHashCalculator(kSeed, kDeviceId) |
| .Validate("pref.path", dict_value.get(), kExpectedDictValue)); |
| |
| static const char kExpectedListValue[] = |
| "8D5A25972DF5AE20D041C780E7CA54E40F614AD53513A0724EE8D62D4F992740"; |
| EXPECT_EQ(PrefHashCalculator::VALID, |
| PrefHashCalculator(kSeed, kDeviceId) |
| .Validate("pref.path", list_value.get(), kExpectedListValue)); |
| |
| // Also test every value type together in the same dictionary. |
| base::DictionaryValue everything; |
| everything.Set("null", null_value.release()); |
| everything.Set("bool", bool_value.release()); |
| everything.Set("int", int_value.release()); |
| everything.Set("double", double_value.release()); |
| everything.Set("string", string_value.release()); |
| everything.Set("list", list_value.release()); |
| everything.Set("dict", dict_value.release()); |
| static const char kExpectedEverythingValue[] = |
| "B97D09BE7005693574DCBDD03D8D9E44FB51F4008B73FB56A49A9FA671A1999B"; |
| EXPECT_EQ(PrefHashCalculator::VALID, |
| PrefHashCalculator(kSeed, kDeviceId) |
| .Validate("pref.path", &everything, kExpectedEverythingValue)); |
| } |
| |
| TEST(PrefHashCalculatorTest, TestCompatibilityWithLegacyPrefMetricsServiceId) { |
| static const char kSeed[] = { |
| 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, |
| 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, |
| 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x00, |
| 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, |
| 0x0C, 0x0D, 0x0E, 0x0F, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, |
| 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F}; |
| static const char kDeviceId[] = |
| "D730D9CBD98C734A4FB097A1922275FE9F7E026A4EA1BE0E84"; |
| static const char kExpectedValue[] = |
| "845EF34663FF8D32BE6707F40258FBA531C2BFC532E3B014AFB3476115C2A9DE"; |
| |
| base::ListValue startup_urls; |
| startup_urls.Set(0, new base::StringValue("http://www.chromium.org/")); |
| |
| EXPECT_EQ( |
| PrefHashCalculator::VALID_SECURE_LEGACY, |
| PrefHashCalculator(std::string(kSeed, arraysize(kSeed)), kDeviceId) |
| .Validate("session.startup_urls", &startup_urls, kExpectedValue)); |
| } |