| // Copyright 2015 The Weave 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 "src/component_manager_impl.h" | 
 |  | 
 | #include <map> | 
 |  | 
 | #include <gtest/gtest.h> | 
 | #include <weave/test/unittest_utils.h> | 
 |  | 
 | #include "src/bind_lambda.h" | 
 | #include "src/commands/schema_constants.h" | 
 | #include "src/mock_component_manager.h" | 
 | #include "src/test/mock_clock.h" | 
 |  | 
 | namespace weave { | 
 |  | 
 | using test::CreateDictionaryValue; | 
 | using testing::Return; | 
 |  | 
 | namespace { | 
 |  | 
 | bool HasTrait(const base::DictionaryValue& comp, const std::string& trait) { | 
 |   const base::ListValue* list = nullptr; | 
 |   if (!comp.GetList("traits", &list)) | 
 |     return false; | 
 |   for (const base::Value* item : *list) { | 
 |     std::string value; | 
 |     if (item->GetAsString(&value) && value == trait) | 
 |       return true; | 
 |   } | 
 |   return false; | 
 | } | 
 |  | 
 | // Creates sample trait/component trees: | 
 | // { | 
 | //   "traits": { | 
 | //     "t1": {}, | 
 | //     "t2": {}, | 
 | //     "t3": {}, | 
 | //     "t4": {}, | 
 | //     "t5": {}, | 
 | //     "t6": {}, | 
 | //   }, | 
 | //   "components": { | 
 | //     "comp1": { | 
 | //       "traits": [ "t1" ], | 
 | //       "components": { | 
 | //         "comp2": [ | 
 | //           { "traits": [ "t2" ] }, | 
 | //           { | 
 | //             "traits": [ "t3" ], | 
 | //             "components": { | 
 | //               "comp3": { | 
 | //                 "traits": [ "t4" ], | 
 | //                 "components": { | 
 | //                   "comp4": { | 
 | //                     "traits": [ "t5", "t6" ] | 
 | //                   } | 
 | //                 } | 
 | //               } | 
 | //             } | 
 | //           } | 
 | //         ], | 
 | //       } | 
 | //     } | 
 | //   } | 
 | // } | 
 | class ComponentManagerTest : public ::testing::Test { | 
 |  protected: | 
 |   void CreateTestComponentTree(ComponentManager* manager) { | 
 |     const char kTraits[] = | 
 |         R"({"t1":{},"t2":{},"t3":{},"t4":{},"t5":{},"t6":{}})"; | 
 |     auto json = CreateDictionaryValue(kTraits); | 
 |     ASSERT_TRUE(manager->LoadTraits(*json, nullptr)); | 
 |     EXPECT_TRUE(manager->AddComponent("", "comp1", {"t1"}, nullptr)); | 
 |     EXPECT_TRUE( | 
 |         manager->AddComponentArrayItem("comp1", "comp2", {"t2"}, nullptr)); | 
 |     EXPECT_TRUE( | 
 |         manager->AddComponentArrayItem("comp1", "comp2", {"t3"}, nullptr)); | 
 |     EXPECT_TRUE( | 
 |         manager->AddComponent("comp1.comp2[1]", "comp3", {"t4"}, nullptr)); | 
 |     EXPECT_TRUE(manager->AddComponent("comp1.comp2[1].comp3", "comp4", | 
 |                                       {"t5", "t6"}, nullptr)); | 
 |   } | 
 |  | 
 |   test::MockClock clock_; | 
 |   ComponentManagerImpl manager_{&clock_}; | 
 | }; | 
 |  | 
 | }  // anonymous namespace | 
 |  | 
 | TEST_F(ComponentManagerTest, Empty) { | 
 |   EXPECT_TRUE(manager_.GetTraits().empty()); | 
 |   EXPECT_TRUE(manager_.GetComponents().empty()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, LoadTraits) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "user", | 
 |           "parameters": {"height": {"type": "integer"}} | 
 |         } | 
 |       }, | 
 |       "state": { | 
 |         "property1": {"type": "boolean"} | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "state": { | 
 |         "property2": {"type": "string"} | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto json = CreateDictionaryValue(kTraits); | 
 |   EXPECT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |   EXPECT_JSON_EQ(kTraits, manager_.GetTraits()); | 
 |   EXPECT_TRUE(manager_.GetComponents().empty()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, LoadTraitsDuplicateIdentical) { | 
 |   const char kTraits1[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "user", | 
 |           "parameters": {"height": {"type": "integer"}} | 
 |         } | 
 |       }, | 
 |       "state": { | 
 |         "property1": {"type": "boolean"} | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "state": { | 
 |         "property2": {"type": "string"} | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto json = CreateDictionaryValue(kTraits1); | 
 |   EXPECT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |   const char kTraits2[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "user", | 
 |           "parameters": {"height": {"type": "integer"}} | 
 |         } | 
 |       }, | 
 |       "state": { | 
 |         "property1": {"type": "boolean"} | 
 |       } | 
 |     }, | 
 |     "trait3": { | 
 |       "state": { | 
 |         "property3": {"type": "string"} | 
 |       } | 
 |     } | 
 |   })"; | 
 |   json = CreateDictionaryValue(kTraits2); | 
 |   EXPECT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |   const char kExpected[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "user", | 
 |           "parameters": {"height": {"type": "integer"}} | 
 |         } | 
 |       }, | 
 |       "state": { | 
 |         "property1": {"type": "boolean"} | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "state": { | 
 |         "property2": {"type": "string"} | 
 |       } | 
 |     }, | 
 |     "trait3": { | 
 |       "state": { | 
 |         "property3": {"type": "string"} | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected, manager_.GetTraits()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, LoadTraitsDuplicateOverride) { | 
 |   const char kTraits1[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "user", | 
 |           "parameters": {"height": {"type": "integer"}} | 
 |         } | 
 |       }, | 
 |       "state": { | 
 |         "property1": {"type": "boolean"} | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "state": { | 
 |         "property2": {"type": "string"} | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto json = CreateDictionaryValue(kTraits1); | 
 |   EXPECT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |   const char kTraits2[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "user", | 
 |           "parameters": {"height": {"type": "string"}} | 
 |         } | 
 |       }, | 
 |       "state": { | 
 |         "property1": {"type": "boolean"} | 
 |       } | 
 |     }, | 
 |     "trait3": { | 
 |       "state": { | 
 |         "property3": {"type": "string"} | 
 |       } | 
 |     } | 
 |   })"; | 
 |   json = CreateDictionaryValue(kTraits2); | 
 |   EXPECT_FALSE(manager_.LoadTraits(*json, nullptr)); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddTraitDefChangedCallback) { | 
 |   int count = 0; | 
 |   int count2 = 0; | 
 |   manager_.AddTraitDefChangedCallback(base::Bind([&count]() { count++; })); | 
 |   manager_.AddTraitDefChangedCallback(base::Bind([&count2]() { count2++; })); | 
 |   EXPECT_EQ(1, count); | 
 |   EXPECT_EQ(1, count2); | 
 |   // New definitions. | 
 |   const char kTraits1[] = R"({ | 
 |     "trait1": { | 
 |       "state": { | 
 |         "property1": {"type": "boolean"} | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "state": { | 
 |         "property2": {"type": "string"} | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto json = CreateDictionaryValue(kTraits1); | 
 |   EXPECT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |   EXPECT_EQ(2, count); | 
 |   // Duplicate definition, shouldn't call the callback. | 
 |   const char kTraits2[] = R"({ | 
 |     "trait1": { | 
 |       "state": { | 
 |         "property1": {"type": "boolean"} | 
 |       } | 
 |     } | 
 |   })"; | 
 |   json = CreateDictionaryValue(kTraits2); | 
 |   EXPECT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |   EXPECT_EQ(2, count); | 
 |   // New definition, should call the callback now. | 
 |   const char kTraits3[] = R"({ | 
 |     "trait3": { | 
 |       "state": { | 
 |         "property3": {"type": "string"} | 
 |       } | 
 |     } | 
 |   })"; | 
 |   json = CreateDictionaryValue(kTraits3); | 
 |   EXPECT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |   EXPECT_EQ(3, count); | 
 |   // Wrong definition, shouldn't call the callback. | 
 |   const char kTraits4[] = R"({ | 
 |     "trait4": "foo" | 
 |   })"; | 
 |   json = CreateDictionaryValue(kTraits4); | 
 |   EXPECT_FALSE(manager_.LoadTraits(*json, nullptr)); | 
 |   EXPECT_EQ(3, count); | 
 |   // Make sure both callbacks were called the same number of times. | 
 |   EXPECT_EQ(count2, count); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, LoadTraitsNotAnObject) { | 
 |   const char kTraits1[] = R"({"trait1": 0})"; | 
 |   auto json = CreateDictionaryValue(kTraits1); | 
 |   ErrorPtr error; | 
 |   EXPECT_FALSE(manager_.LoadTraits(*json, &error)); | 
 |   EXPECT_EQ(errors::commands::kTypeMismatch, error->GetCode()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, FindTraitDefinition) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "user", | 
 |           "parameters": {"height": {"type": "integer"}} | 
 |         } | 
 |       }, | 
 |       "state": { | 
 |         "property1": {"type": "boolean"} | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "state": { | 
 |         "property2": {"type": "string"} | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto json = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |  | 
 |   const base::DictionaryValue* trait = manager_.FindTraitDefinition("trait1"); | 
 |   ASSERT_NE(nullptr, trait); | 
 |   const char kExpected1[] = R"({ | 
 |     "commands": { | 
 |       "command1": { | 
 |         "minimalRole": "user", | 
 |         "parameters": {"height": {"type": "integer"}} | 
 |       } | 
 |     }, | 
 |     "state": { | 
 |       "property1": {"type": "boolean"} | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected1, *trait); | 
 |  | 
 |   trait = manager_.FindTraitDefinition("trait2"); | 
 |   ASSERT_NE(nullptr, trait); | 
 |   const char kExpected2[] = R"({ | 
 |     "state": { | 
 |       "property2": {"type": "string"} | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected2, *trait); | 
 |  | 
 |   EXPECT_EQ(nullptr, manager_.FindTraitDefinition("trait3")); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, FindCommandDefinition) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "user", | 
 |           "parameters": {"height": {"type": "integer"}} | 
 |         } | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "manager" | 
 |         }, | 
 |         "command2": { | 
 |           "minimalRole": "owner" | 
 |         } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto json = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |  | 
 |   const auto* cmd_def = manager_.FindCommandDefinition("trait1.command1"); | 
 |   ASSERT_NE(nullptr, cmd_def); | 
 |   const char kExpected1[] = R"({ | 
 |     "minimalRole": "user", | 
 |     "parameters": {"height": {"type": "integer"}} | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected1, *cmd_def); | 
 |  | 
 |   cmd_def = manager_.FindCommandDefinition("trait2.command1"); | 
 |   ASSERT_NE(nullptr, cmd_def); | 
 |   const char kExpected2[] = R"({ | 
 |     "minimalRole": "manager" | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected2, *cmd_def); | 
 |  | 
 |   cmd_def = manager_.FindCommandDefinition("trait2.command2"); | 
 |   ASSERT_NE(nullptr, cmd_def); | 
 |   const char kExpected3[] = R"({ | 
 |     "minimalRole": "owner" | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected3, *cmd_def); | 
 |  | 
 |   EXPECT_EQ(nullptr, manager_.FindTraitDefinition("trait1.command2")); | 
 |   EXPECT_EQ(nullptr, manager_.FindTraitDefinition("trait3.command1")); | 
 |   EXPECT_EQ(nullptr, manager_.FindTraitDefinition("trait")); | 
 |   EXPECT_EQ(nullptr, | 
 |             manager_.FindTraitDefinition("trait1.command1.parameters")); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, GetMinimalRole) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "user" }, | 
 |         "command2": { "minimalRole": "viewer" } | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "manager" }, | 
 |         "command2": { "minimalRole": "owner" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto json = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |  | 
 |   UserRole role; | 
 |   ASSERT_TRUE(manager_.GetMinimalRole("trait1.command1", &role, nullptr)); | 
 |   EXPECT_EQ(UserRole::kUser, role); | 
 |  | 
 |   ASSERT_TRUE(manager_.GetMinimalRole("trait1.command2", &role, nullptr)); | 
 |   EXPECT_EQ(UserRole::kViewer, role); | 
 |  | 
 |   ASSERT_TRUE(manager_.GetMinimalRole("trait2.command1", &role, nullptr)); | 
 |   EXPECT_EQ(UserRole::kManager, role); | 
 |  | 
 |   ASSERT_TRUE(manager_.GetMinimalRole("trait2.command2", &role, nullptr)); | 
 |   EXPECT_EQ(UserRole::kOwner, role); | 
 |  | 
 |   EXPECT_FALSE(manager_.GetMinimalRole("trait1.command3", &role, nullptr)); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddComponent) { | 
 |   const char kTraits[] = R"({"trait1": {}, "trait2": {}, "trait3": {}})"; | 
 |   auto json = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |   EXPECT_TRUE( | 
 |       manager_.AddComponent("", "comp1", {"trait1", "trait2"}, nullptr)); | 
 |   EXPECT_TRUE(manager_.AddComponent("", "comp2", {"trait3"}, nullptr)); | 
 |   const char kExpected[] = R"({ | 
 |     "comp1": { | 
 |       "traits": ["trait1", "trait2"] | 
 |     }, | 
 |     "comp2": { | 
 |       "traits": ["trait3"] | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected, manager_.GetComponents()); | 
 |  | 
 |   // 'trait4' is undefined, so can't add a component referring to it. | 
 |   EXPECT_FALSE(manager_.AddComponent("", "comp3", {"trait4"}, nullptr)); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddSubComponent) { | 
 |   EXPECT_TRUE(manager_.AddComponent("", "comp1", {}, nullptr)); | 
 |   EXPECT_TRUE(manager_.AddComponent("comp1", "comp2", {}, nullptr)); | 
 |   EXPECT_TRUE(manager_.AddComponent("comp1", "comp3", {}, nullptr)); | 
 |   EXPECT_TRUE(manager_.AddComponent("comp1.comp2", "comp4", {}, nullptr)); | 
 |   const char kExpected[] = R"({ | 
 |     "comp1": { | 
 |       "traits": [], | 
 |       "components": { | 
 |         "comp2": { | 
 |           "traits": [], | 
 |           "components": { | 
 |             "comp4": { | 
 |               "traits": [] | 
 |             } | 
 |           } | 
 |         }, | 
 |         "comp3": { | 
 |           "traits": [] | 
 |         } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected, manager_.GetComponents()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddComponentArrayItem) { | 
 |   const char kTraits[] = R"({"foo": {}, "bar": {}})"; | 
 |   auto json = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*json, nullptr)); | 
 |  | 
 |   EXPECT_TRUE(manager_.AddComponent("", "comp1", {}, nullptr)); | 
 |   EXPECT_TRUE( | 
 |       manager_.AddComponentArrayItem("comp1", "comp2", {"foo"}, nullptr)); | 
 |   EXPECT_TRUE( | 
 |       manager_.AddComponentArrayItem("comp1", "comp2", {"bar"}, nullptr)); | 
 |   EXPECT_TRUE(manager_.AddComponent("comp1.comp2[1]", "comp3", {}, nullptr)); | 
 |   EXPECT_TRUE( | 
 |       manager_.AddComponent("comp1.comp2[1].comp3", "comp4", {}, nullptr)); | 
 |   const char kExpected[] = R"({ | 
 |     "comp1": { | 
 |       "traits": [], | 
 |       "components": { | 
 |         "comp2": [ | 
 |           { | 
 |             "traits": ["foo"] | 
 |           }, | 
 |           { | 
 |             "traits": ["bar"], | 
 |             "components": { | 
 |               "comp3": { | 
 |                 "traits": [], | 
 |                 "components": { | 
 |                   "comp4": { | 
 |                     "traits": [] | 
 |                   } | 
 |                 } | 
 |               } | 
 |             } | 
 |           } | 
 |         ] | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected, manager_.GetComponents()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddComponentExist) { | 
 |   EXPECT_TRUE(manager_.AddComponent("", "comp1", {}, nullptr)); | 
 |   EXPECT_FALSE(manager_.AddComponent("", "comp1", {}, nullptr)); | 
 |   EXPECT_TRUE(manager_.AddComponent("comp1", "comp2", {}, nullptr)); | 
 |   EXPECT_FALSE(manager_.AddComponent("comp1", "comp2", {}, nullptr)); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddComponentDoesNotExist) { | 
 |   EXPECT_FALSE(manager_.AddComponent("comp1", "comp2", {}, nullptr)); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddComponentTreeChangedCallback) { | 
 |   int count = 0; | 
 |   int count2 = 0; | 
 |   manager_.AddComponentTreeChangedCallback(base::Bind([&count]() { count++; })); | 
 |   manager_.AddComponentTreeChangedCallback( | 
 |       base::Bind([&count2]() { count2++; })); | 
 |   EXPECT_EQ(1, count); | 
 |   EXPECT_EQ(1, count2); | 
 |   EXPECT_TRUE(manager_.AddComponent("", "comp1", {}, nullptr)); | 
 |   EXPECT_EQ(2, count); | 
 |   EXPECT_TRUE(manager_.AddComponent("comp1", "comp2", {}, nullptr)); | 
 |   EXPECT_EQ(3, count); | 
 |   EXPECT_TRUE(manager_.AddComponent("comp1.comp2", "comp4", {}, nullptr)); | 
 |   EXPECT_EQ(4, count); | 
 |   EXPECT_TRUE(manager_.AddComponentArrayItem("comp1", "comp3", {}, nullptr)); | 
 |   EXPECT_EQ(5, count); | 
 |   EXPECT_TRUE(manager_.AddComponentArrayItem("comp1", "comp3", {}, nullptr)); | 
 |   EXPECT_EQ(6, count); | 
 |   // Make sure both callbacks were called the same number of times. | 
 |   EXPECT_EQ(count2, count); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, FindComponent) { | 
 |   CreateTestComponentTree(&manager_); | 
 |  | 
 |   const base::DictionaryValue* comp = manager_.FindComponent("comp1", nullptr); | 
 |   ASSERT_NE(nullptr, comp); | 
 |   EXPECT_TRUE(HasTrait(*comp, "t1")); | 
 |  | 
 |   comp = manager_.FindComponent("comp1.comp2[0]", nullptr); | 
 |   ASSERT_NE(nullptr, comp); | 
 |   EXPECT_TRUE(HasTrait(*comp, "t2")); | 
 |  | 
 |   comp = manager_.FindComponent("comp1.comp2[1]", nullptr); | 
 |   ASSERT_NE(nullptr, comp); | 
 |   EXPECT_TRUE(HasTrait(*comp, "t3")); | 
 |  | 
 |   comp = manager_.FindComponent("comp1.comp2[1].comp3", nullptr); | 
 |   ASSERT_NE(nullptr, comp); | 
 |   EXPECT_TRUE(HasTrait(*comp, "t4")); | 
 |  | 
 |   comp = manager_.FindComponent("comp1.comp2[1].comp3.comp4", nullptr); | 
 |   ASSERT_NE(nullptr, comp); | 
 |   EXPECT_TRUE(HasTrait(*comp, "t5")); | 
 |  | 
 |   // Some whitespaces don't hurt. | 
 |   comp = manager_.FindComponent(" comp1 . comp2 [  \t 1 ] .   comp3.comp4 ", | 
 |                                 nullptr); | 
 |   EXPECT_NE(nullptr, comp); | 
 |  | 
 |   // Now check some failure cases. | 
 |   ErrorPtr error; | 
 |   EXPECT_EQ(nullptr, manager_.FindComponent("", &error)); | 
 |   EXPECT_NE(nullptr, error.get()); | 
 |   // 'comp2' doesn't exist: | 
 |   EXPECT_EQ(nullptr, manager_.FindComponent("comp2", nullptr)); | 
 |   // 'comp1.comp2' is an array, not a component: | 
 |   EXPECT_EQ(nullptr, manager_.FindComponent("comp1.comp2", nullptr)); | 
 |   // 'comp1.comp2[3]' doesn't exist: | 
 |   EXPECT_EQ(nullptr, manager_.FindComponent("comp1.comp2[3]", nullptr)); | 
 |   // Empty component names: | 
 |   EXPECT_EQ(nullptr, manager_.FindComponent(".comp2[1]", nullptr)); | 
 |   EXPECT_EQ(nullptr, manager_.FindComponent("comp1.[1]", nullptr)); | 
 |   // Invalid array indices: | 
 |   EXPECT_EQ(nullptr, manager_.FindComponent("comp1.comp2[s]", nullptr)); | 
 |   EXPECT_EQ(nullptr, manager_.FindComponent("comp1.comp2[-2]", nullptr)); | 
 |   EXPECT_EQ(nullptr, manager_.FindComponent("comp1.comp2[1e1]", nullptr)); | 
 |   EXPECT_EQ(nullptr, manager_.FindComponent("comp1.comp2[1", nullptr)); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, ParseCommandInstance) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "user" }, | 
 |         "command2": { "minimalRole": "viewer" } | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "manager" }, | 
 |         "command2": { "minimalRole": "owner" } | 
 |       } | 
 |     }, | 
 |     "trait3": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "manager" }, | 
 |         "command2": { "minimalRole": "owner" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto traits = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*traits, nullptr)); | 
 |   ASSERT_TRUE(manager_.AddComponent("", "comp1", {"trait1"}, nullptr)); | 
 |   ASSERT_TRUE(manager_.AddComponent("", "comp2", {"trait2"}, nullptr)); | 
 |  | 
 |   std::string id; | 
 |   const char kCommand1[] = R"({ | 
 |     "name": "trait1.command1", | 
 |     "id": "1234-12345", | 
 |     "component": "comp1", | 
 |     "parameters": {} | 
 |   })"; | 
 |   auto command1 = CreateDictionaryValue(kCommand1); | 
 |   EXPECT_NE(nullptr, | 
 |             manager_.ParseCommandInstance(*command1, Command::Origin::kLocal, | 
 |                                           UserRole::kUser, &id, nullptr) | 
 |                 .get()); | 
 |   EXPECT_EQ("1234-12345", id); | 
 |   // Not enough access rights | 
 |   EXPECT_EQ(nullptr, | 
 |             manager_.ParseCommandInstance(*command1, Command::Origin::kLocal, | 
 |                                           UserRole::kViewer, &id, nullptr) | 
 |                 .get()); | 
 |  | 
 |   const char kCommand2[] = R"({ | 
 |     "name": "trait1.command3", | 
 |     "component": "comp1", | 
 |     "parameters": {} | 
 |   })"; | 
 |   auto command2 = CreateDictionaryValue(kCommand2); | 
 |   // trait1.command3 doesn't exist | 
 |   EXPECT_EQ(nullptr, | 
 |             manager_.ParseCommandInstance(*command2, Command::Origin::kLocal, | 
 |                                           UserRole::kOwner, &id, nullptr) | 
 |                 .get()); | 
 |   EXPECT_TRUE(id.empty()); | 
 |  | 
 |   const char kCommand3[] = R"({ | 
 |     "name": "trait2.command1", | 
 |     "component": "comp1", | 
 |     "parameters": {} | 
 |   })"; | 
 |   auto command3 = CreateDictionaryValue(kCommand3); | 
 |   // Component comp1 doesn't have trait2. | 
 |   EXPECT_EQ(nullptr, | 
 |             manager_.ParseCommandInstance(*command3, Command::Origin::kLocal, | 
 |                                           UserRole::kOwner, &id, nullptr) | 
 |                 .get()); | 
 |  | 
 |   // No component specified, find the suitable component | 
 |   const char kCommand4[] = R"({ | 
 |     "name": "trait1.command1", | 
 |     "parameters": {} | 
 |   })"; | 
 |   auto command4 = CreateDictionaryValue(kCommand4); | 
 |   auto command_instance = manager_.ParseCommandInstance( | 
 |       *command4, Command::Origin::kLocal, UserRole::kOwner, &id, nullptr); | 
 |   EXPECT_NE(nullptr, command_instance.get()); | 
 |   EXPECT_EQ("comp1", command_instance->GetComponent()); | 
 |  | 
 |   const char kCommand5[] = R"({ | 
 |     "name": "trait2.command1", | 
 |     "parameters": {} | 
 |   })"; | 
 |   auto command5 = CreateDictionaryValue(kCommand5); | 
 |   command_instance = manager_.ParseCommandInstance( | 
 |       *command5, Command::Origin::kLocal, UserRole::kOwner, &id, nullptr); | 
 |   EXPECT_NE(nullptr, command_instance.get()); | 
 |   EXPECT_EQ("comp2", command_instance->GetComponent()); | 
 |  | 
 |   // Cannot route the command, no component with 'trait3'. | 
 |   const char kCommand6[] = R"({ | 
 |     "name": "trait3.command1", | 
 |     "parameters": {} | 
 |   })"; | 
 |   auto command6 = CreateDictionaryValue(kCommand6); | 
 |   EXPECT_EQ(nullptr, | 
 |             manager_.ParseCommandInstance(*command6, Command::Origin::kLocal, | 
 |                                           UserRole::kOwner, &id, nullptr) | 
 |                 .get()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddCommand) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "user" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto traits = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*traits, nullptr)); | 
 |   ASSERT_TRUE(manager_.AddComponent("", "comp1", {"trait1"}, nullptr)); | 
 |  | 
 |   std::string id; | 
 |   const char kCommand[] = R"({ | 
 |     "name": "trait1.command1", | 
 |     "id": "1234-12345", | 
 |     "component": "comp1", | 
 |     "parameters": {} | 
 |   })"; | 
 |   auto command = CreateDictionaryValue(kCommand); | 
 |   auto command_instance = manager_.ParseCommandInstance( | 
 |       *command, Command::Origin::kLocal, UserRole::kUser, &id, nullptr); | 
 |   ASSERT_NE(nullptr, command_instance.get()); | 
 |   manager_.AddCommand(std::move(command_instance)); | 
 |   const auto* queued_command = manager_.FindCommand(id); | 
 |   ASSERT_NE(nullptr, queued_command); | 
 |   EXPECT_EQ("trait1.command1", queued_command->GetName()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddCommandHandler) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "user" } | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "commands": { | 
 |         "command2": { "minimalRole": "user" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto traits = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*traits, nullptr)); | 
 |   ASSERT_TRUE(manager_.AddComponent("", "comp1", {"trait1"}, nullptr)); | 
 |   ASSERT_TRUE( | 
 |       manager_.AddComponent("", "comp2", {"trait1", "trait2"}, nullptr)); | 
 |  | 
 |   std::string last_tags; | 
 |   auto handler = [&last_tags](int tag, const std::weak_ptr<Command>& command) { | 
 |     if (!last_tags.empty()) | 
 |       last_tags += ','; | 
 |     last_tags += std::to_string(tag); | 
 |   }; | 
 |  | 
 |   manager_.AddCommandHandler("comp1", "trait1.command1", | 
 |                              base::Bind(handler, 1)); | 
 |   manager_.AddCommandHandler("comp2", "trait1.command1", | 
 |                              base::Bind(handler, 2)); | 
 |   manager_.AddCommandHandler("comp2", "trait2.command2", | 
 |                              base::Bind(handler, 3)); | 
 |   EXPECT_TRUE(last_tags.empty()); | 
 |  | 
 |   const char kCommand1[] = R"({ | 
 |     "name": "trait1.command1", | 
 |     "component": "comp1" | 
 |   })"; | 
 |   auto command1 = CreateDictionaryValue(kCommand1); | 
 |   auto command_instance = manager_.ParseCommandInstance( | 
 |       *command1, Command::Origin::kCloud, UserRole::kUser, nullptr, nullptr); | 
 |   ASSERT_NE(nullptr, command_instance.get()); | 
 |   manager_.AddCommand(std::move(command_instance)); | 
 |   EXPECT_EQ("1", last_tags); | 
 |   last_tags.clear(); | 
 |  | 
 |   const char kCommand2[] = R"({ | 
 |     "name": "trait1.command1", | 
 |     "component": "comp2" | 
 |   })"; | 
 |   auto command2 = CreateDictionaryValue(kCommand2); | 
 |   command_instance = manager_.ParseCommandInstance( | 
 |       *command2, Command::Origin::kCloud, UserRole::kUser, nullptr, nullptr); | 
 |   ASSERT_NE(nullptr, command_instance.get()); | 
 |   manager_.AddCommand(std::move(command_instance)); | 
 |   EXPECT_EQ("2", last_tags); | 
 |   last_tags.clear(); | 
 |  | 
 |   const char kCommand3[] = R"({ | 
 |     "name": "trait2.command2", | 
 |     "component": "comp2", | 
 |     "parameters": {} | 
 |   })"; | 
 |   auto command3 = CreateDictionaryValue(kCommand3); | 
 |   command_instance = manager_.ParseCommandInstance( | 
 |       *command3, Command::Origin::kCloud, UserRole::kUser, nullptr, nullptr); | 
 |   ASSERT_NE(nullptr, command_instance.get()); | 
 |   manager_.AddCommand(std::move(command_instance)); | 
 |   EXPECT_EQ("3", last_tags); | 
 |   last_tags.clear(); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddDefaultCommandHandler) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "user" } | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "commands": { | 
 |         "command2": { "minimalRole": "user" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto traits = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*traits, nullptr)); | 
 |   ASSERT_TRUE(manager_.AddComponent("", "comp", {"trait1", "trait2"}, nullptr)); | 
 |  | 
 |   int count = 0; | 
 |   auto handler = [&count](int tag, const std::weak_ptr<Command>& command) { | 
 |     count++; | 
 |   }; | 
 |  | 
 |   manager_.AddCommandHandler("", "", base::Bind(handler, 1)); | 
 |   EXPECT_EQ(0, count); | 
 |  | 
 |   const char kCommand1[] = R"({ | 
 |     "name": "trait1.command1", | 
 |     "component": "comp" | 
 |   })"; | 
 |   auto command1 = CreateDictionaryValue(kCommand1); | 
 |   auto command_instance = manager_.ParseCommandInstance( | 
 |       *command1, Command::Origin::kCloud, UserRole::kUser, nullptr, nullptr); | 
 |   ASSERT_NE(nullptr, command_instance.get()); | 
 |   manager_.AddCommand(std::move(command_instance)); | 
 |   EXPECT_EQ(1, count); | 
 |  | 
 |   const char kCommand2[] = R"({ | 
 |     "name": "trait2.command2", | 
 |     "component": "comp" | 
 |   })"; | 
 |   auto command2 = CreateDictionaryValue(kCommand2); | 
 |   command_instance = manager_.ParseCommandInstance( | 
 |       *command2, Command::Origin::kCloud, UserRole::kUser, nullptr, nullptr); | 
 |   ASSERT_NE(nullptr, command_instance.get()); | 
 |   manager_.AddCommand(std::move(command_instance)); | 
 |   EXPECT_EQ(2, count); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, SetStateProperties) { | 
 |   CreateTestComponentTree(&manager_); | 
 |  | 
 |   const char kState1[] = R"({"t1": {"p1": 0, "p2": "foo"}})"; | 
 |   auto state1 = CreateDictionaryValue(kState1); | 
 |   ASSERT_TRUE(manager_.SetStateProperties("comp1", *state1, nullptr)); | 
 |   const char kExpected1[] = R"({ | 
 |     "comp1": { | 
 |       "traits": [ "t1" ], | 
 |       "state": {"t1": {"p1": 0, "p2": "foo"}}, | 
 |       "components": { | 
 |         "comp2": [ | 
 |           { | 
 |             "traits": [ "t2" ] | 
 |           }, | 
 |           { | 
 |             "traits": [ "t3" ], | 
 |             "components": { | 
 |               "comp3": { | 
 |                 "traits": [ "t4" ], | 
 |                 "components": { | 
 |                   "comp4": { | 
 |                     "traits": [ "t5", "t6" ] | 
 |                   } | 
 |                 } | 
 |               } | 
 |             } | 
 |           } | 
 |         ] | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected1, manager_.GetComponents()); | 
 |  | 
 |   const char kState2[] = R"({"t1": {"p1": {"bar": "baz"}}})"; | 
 |   auto state2 = CreateDictionaryValue(kState2); | 
 |   ASSERT_TRUE(manager_.SetStateProperties("comp1", *state2, nullptr)); | 
 |  | 
 |   const char kExpected2[] = R"({ | 
 |     "comp1": { | 
 |       "traits": [ "t1" ], | 
 |       "state": {"t1": {"p1": {"bar": "baz"}, "p2": "foo"}}, | 
 |       "components": { | 
 |         "comp2": [ | 
 |           { | 
 |             "traits": [ "t2" ] | 
 |           }, | 
 |           { | 
 |             "traits": [ "t3" ], | 
 |             "components": { | 
 |               "comp3": { | 
 |                 "traits": [ "t4" ], | 
 |                 "components": { | 
 |                   "comp4": { | 
 |                     "traits": [ "t5", "t6" ] | 
 |                   } | 
 |                 } | 
 |               } | 
 |             } | 
 |           } | 
 |         ] | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected2, manager_.GetComponents()); | 
 |  | 
 |   const char kState3[] = R"({"t5": {"p1": 1}})"; | 
 |   auto state3 = CreateDictionaryValue(kState3); | 
 |   ASSERT_TRUE(manager_.SetStateProperties("comp1.comp2[1].comp3.comp4", *state3, | 
 |                                           nullptr)); | 
 |  | 
 |   const char kExpected3[] = R"({ | 
 |     "comp1": { | 
 |       "traits": [ "t1" ], | 
 |       "state": {"t1": {"p1": {"bar": "baz"}, "p2": "foo"}}, | 
 |       "components": { | 
 |         "comp2": [ | 
 |           { | 
 |             "traits": [ "t2" ] | 
 |           }, | 
 |           { | 
 |             "traits": [ "t3" ], | 
 |             "components": { | 
 |               "comp3": { | 
 |                 "traits": [ "t4" ], | 
 |                 "components": { | 
 |                   "comp4": { | 
 |                     "traits": [ "t5", "t6" ], | 
 |                     "state": { "t5": { "p1": 1 } } | 
 |                   } | 
 |                 } | 
 |               } | 
 |             } | 
 |           } | 
 |         ] | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected3, manager_.GetComponents()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, SetStatePropertiesFromJson) { | 
 |   CreateTestComponentTree(&manager_); | 
 |  | 
 |   ASSERT_TRUE(manager_.SetStatePropertiesFromJson( | 
 |       "comp1.comp2[1].comp3.comp4", R"({"t5": {"p1": 3}, "t6": {"p2": 5}})", | 
 |       nullptr)); | 
 |  | 
 |   const char kExpected[] = R"({ | 
 |     "comp1": { | 
 |       "traits": [ "t1" ], | 
 |       "components": { | 
 |         "comp2": [ | 
 |           { | 
 |             "traits": [ "t2" ] | 
 |           }, | 
 |           { | 
 |             "traits": [ "t3" ], | 
 |             "components": { | 
 |               "comp3": { | 
 |                 "traits": [ "t4" ], | 
 |                 "components": { | 
 |                   "comp4": { | 
 |                     "traits": [ "t5", "t6" ], | 
 |                     "state": { | 
 |                       "t5": { "p1": 3 }, | 
 |                       "t6": { "p2": 5 } | 
 |                     } | 
 |                   } | 
 |                 } | 
 |               } | 
 |             } | 
 |           } | 
 |         ] | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected, manager_.GetComponents()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, SetGetStateProperty) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "state": { | 
 |         "prop1": { "type": "string" }, | 
 |         "prop2": { "type": "integer" } | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "state": { | 
 |         "prop3": { "type": "string" }, | 
 |         "prop4": { "type": "string" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto traits = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*traits, nullptr)); | 
 |   ASSERT_TRUE( | 
 |       manager_.AddComponent("", "comp1", {"trait1", "trait2"}, nullptr)); | 
 |  | 
 |   base::StringValue p1("foo"); | 
 |   ASSERT_TRUE(manager_.SetStateProperty("comp1", "trait1.prop1", p1, nullptr)); | 
 |  | 
 |   const char kExpected1[] = R"({ | 
 |     "comp1": { | 
 |       "traits": [ "trait1", "trait2" ], | 
 |       "state": { | 
 |         "trait1": { "prop1": "foo" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected1, manager_.GetComponents()); | 
 |  | 
 |   base::FundamentalValue p2(2); | 
 |   ASSERT_TRUE(manager_.SetStateProperty("comp1", "trait2.prop3", p2, nullptr)); | 
 |  | 
 |   const char kExpected2[] = R"({ | 
 |     "comp1": { | 
 |       "traits": [ "trait1", "trait2" ], | 
 |       "state": { | 
 |         "trait1": { "prop1": "foo" }, | 
 |         "trait2": { "prop3": 2 } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected2, manager_.GetComponents()); | 
 |   // Just the package name without property: | 
 |   EXPECT_FALSE(manager_.SetStateProperty("comp1", "trait2", p2, nullptr)); | 
 |  | 
 |   const base::Value* value = | 
 |       manager_.GetStateProperty("comp1", "trait1.prop1", nullptr); | 
 |   ASSERT_NE(nullptr, value); | 
 |   EXPECT_TRUE(p1.Equals(value)); | 
 |   value = manager_.GetStateProperty("comp1", "trait2.prop3", nullptr); | 
 |   ASSERT_NE(nullptr, value); | 
 |   EXPECT_TRUE(p2.Equals(value)); | 
 |  | 
 |   // Non-existing property: | 
 |   EXPECT_EQ(nullptr, manager_.GetStateProperty("comp1", "trait2.p", nullptr)); | 
 |   // Non-existing component | 
 |   EXPECT_EQ(nullptr, manager_.GetStateProperty("comp2", "trait.prop", nullptr)); | 
 |   // Just the package name without property: | 
 |   EXPECT_EQ(nullptr, manager_.GetStateProperty("comp1", "trait2", nullptr)); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddStateChangedCallback) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "state": { | 
 |         "prop1": { "type": "string" }, | 
 |         "prop2": { "type": "string" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto traits = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*traits, nullptr)); | 
 |   ASSERT_TRUE(manager_.AddComponent("", "comp1", {"trait1"}, nullptr)); | 
 |  | 
 |   int count = 0; | 
 |   int count2 = 0; | 
 |   manager_.AddStateChangedCallback(base::Bind([&count]() { count++; })); | 
 |   manager_.AddStateChangedCallback(base::Bind([&count2]() { count2++; })); | 
 |   EXPECT_EQ(1, count); | 
 |   EXPECT_EQ(1, count2); | 
 |   EXPECT_EQ(0u, manager_.GetLastStateChangeId()); | 
 |  | 
 |   base::StringValue p1("foo"); | 
 |   ASSERT_TRUE(manager_.SetStateProperty("comp1", "trait1.prop1", p1, nullptr)); | 
 |   EXPECT_EQ(2, count); | 
 |   EXPECT_EQ(2, count2); | 
 |   EXPECT_EQ(1u, manager_.GetLastStateChangeId()); | 
 |  | 
 |   ASSERT_TRUE(manager_.SetStateProperty("comp1", "trait1.prop2", p1, nullptr)); | 
 |   EXPECT_EQ(3, count); | 
 |   EXPECT_EQ(3, count2); | 
 |   EXPECT_EQ(2u, manager_.GetLastStateChangeId()); | 
 |  | 
 |   // Fail - no component. | 
 |   ASSERT_FALSE(manager_.SetStateProperty("comp2", "trait1.prop2", p1, nullptr)); | 
 |   EXPECT_EQ(3, count); | 
 |   EXPECT_EQ(3, count2); | 
 |   EXPECT_EQ(2u, manager_.GetLastStateChangeId()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, ComponentStateUpdates) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "state": { | 
 |         "prop1": { "type": "string" }, | 
 |         "prop2": { "type": "string" } | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "state": { | 
 |         "prop3": { "type": "string" }, | 
 |         "prop4": { "type": "string" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto traits = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*traits, nullptr)); | 
 |   ASSERT_TRUE( | 
 |       manager_.AddComponent("", "comp1", {"trait1", "trait2"}, nullptr)); | 
 |   ASSERT_TRUE( | 
 |       manager_.AddComponent("", "comp2", {"trait1", "trait2"}, nullptr)); | 
 |  | 
 |   std::vector<ComponentManager::UpdateID> updates1; | 
 |   auto callback1 = [&updates1](ComponentManager::UpdateID id) { | 
 |     updates1.push_back(id); | 
 |   }; | 
 |   // State change queue is empty, callback should be called immediately. | 
 |   auto token1 = manager_.AddServerStateUpdatedCallback(base::Bind(callback1)); | 
 |   ASSERT_EQ(1u, updates1.size()); | 
 |   EXPECT_EQ(manager_.GetLastStateChangeId(), updates1.front()); | 
 |   updates1.clear(); | 
 |  | 
 |   base::StringValue foo("foo"); | 
 |   base::Time time1 = base::Time::Now(); | 
 |   EXPECT_CALL(clock_, Now()).WillRepeatedly(Return(time1)); | 
 |   // These three updates should be grouped into two separate state change queue | 
 |   // items, since they all happen at the same time, but for two different | 
 |   // components. | 
 |   ASSERT_TRUE(manager_.SetStateProperty("comp1", "trait1.prop1", foo, nullptr)); | 
 |   ASSERT_TRUE(manager_.SetStateProperty("comp2", "trait2.prop3", foo, nullptr)); | 
 |   ASSERT_TRUE(manager_.SetStateProperty("comp1", "trait1.prop2", foo, nullptr)); | 
 |  | 
 |   std::vector<ComponentManager::UpdateID> updates2; | 
 |   auto callback2 = [&updates2](ComponentManager::UpdateID id) { | 
 |     updates2.push_back(id); | 
 |   }; | 
 |   // State change queue is not empty, so callback will be called later. | 
 |   auto token2 = manager_.AddServerStateUpdatedCallback(base::Bind(callback2)); | 
 |   EXPECT_TRUE(updates2.empty()); | 
 |  | 
 |   base::StringValue bar("bar"); | 
 |   base::Time time2 = time1 + base::TimeDelta::FromSeconds(1); | 
 |   EXPECT_CALL(clock_, Now()).WillRepeatedly(Return(time2)); | 
 |   // Two more update events (as above) but at |time2|. | 
 |   ASSERT_TRUE(manager_.SetStateProperty("comp1", "trait1.prop1", bar, nullptr)); | 
 |   ASSERT_TRUE(manager_.SetStateProperty("comp2", "trait2.prop3", bar, nullptr)); | 
 |   ASSERT_TRUE(manager_.SetStateProperty("comp1", "trait1.prop2", bar, nullptr)); | 
 |  | 
 |   auto snapshot = manager_.GetAndClearRecordedStateChanges(); | 
 |   EXPECT_EQ(manager_.GetLastStateChangeId(), snapshot.update_id); | 
 |   ASSERT_EQ(4u, snapshot.state_changes.size()); | 
 |  | 
 |   EXPECT_EQ("comp1", snapshot.state_changes[0].component); | 
 |   EXPECT_EQ(time1, snapshot.state_changes[0].timestamp); | 
 |   EXPECT_JSON_EQ(R"({"trait1":{"prop1":"foo","prop2":"foo"}})", | 
 |                  *snapshot.state_changes[0].changed_properties); | 
 |  | 
 |   EXPECT_EQ("comp2", snapshot.state_changes[1].component); | 
 |   EXPECT_EQ(time1, snapshot.state_changes[1].timestamp); | 
 |   EXPECT_JSON_EQ(R"({"trait2":{"prop3":"foo"}})", | 
 |                  *snapshot.state_changes[1].changed_properties); | 
 |  | 
 |   EXPECT_EQ("comp1", snapshot.state_changes[2].component); | 
 |   EXPECT_EQ(time2, snapshot.state_changes[2].timestamp); | 
 |   EXPECT_JSON_EQ(R"({"trait1":{"prop1":"bar","prop2":"bar"}})", | 
 |                  *snapshot.state_changes[2].changed_properties); | 
 |  | 
 |   EXPECT_EQ("comp2", snapshot.state_changes[3].component); | 
 |   EXPECT_EQ(time2, snapshot.state_changes[3].timestamp); | 
 |   EXPECT_JSON_EQ(R"({"trait2":{"prop3":"bar"}})", | 
 |                  *snapshot.state_changes[3].changed_properties); | 
 |  | 
 |   // Make sure previous GetAndClearRecordedStateChanges() clears the queue. | 
 |   auto snapshot2 = manager_.GetAndClearRecordedStateChanges(); | 
 |   EXPECT_EQ(manager_.GetLastStateChangeId(), snapshot2.update_id); | 
 |   EXPECT_TRUE(snapshot2.state_changes.empty()); | 
 |  | 
 |   // Now indicate that we have update the changes on the server. | 
 |   manager_.NotifyStateUpdatedOnServer(snapshot.update_id); | 
 |   ASSERT_EQ(1u, updates1.size()); | 
 |   EXPECT_EQ(snapshot.update_id, updates1.front()); | 
 |   ASSERT_EQ(1u, updates2.size()); | 
 |   EXPECT_EQ(snapshot.update_id, updates2.front()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, FindComponentWithTrait) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": {}, | 
 |     "trait2": {}, | 
 |     "trait3": {} | 
 |   })"; | 
 |   auto traits = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*traits, nullptr)); | 
 |   ASSERT_TRUE( | 
 |       manager_.AddComponent("", "comp1", {"trait1", "trait2"}, nullptr)); | 
 |   ASSERT_TRUE(manager_.AddComponent("", "comp2", {"trait3"}, nullptr)); | 
 |  | 
 |   EXPECT_EQ("comp1", manager_.FindComponentWithTrait("trait1")); | 
 |   EXPECT_EQ("comp1", manager_.FindComponentWithTrait("trait2")); | 
 |   EXPECT_EQ("comp2", manager_.FindComponentWithTrait("trait3")); | 
 |   EXPECT_EQ("", manager_.FindComponentWithTrait("trait4")); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, AddLegacyCommandAndStateDefinitions) { | 
 |   const char kCommandDefs1[] = R"({ | 
 |     "package1": { | 
 |       "command1": { | 
 |         "minimalRole": "user", | 
 |         "parameters": {"height": {"type": "integer"}} | 
 |       }, | 
 |       "command2": { | 
 |         "minimalRole": "owner", | 
 |         "parameters": {} | 
 |       } | 
 |     }, | 
 |     "package2": { | 
 |       "command1": { "minimalRole": "user" }, | 
 |       "command2": { "minimalRole": "owner" } | 
 |     } | 
 |   })"; | 
 |   auto json = CreateDictionaryValue(kCommandDefs1); | 
 |   EXPECT_TRUE(manager_.AddLegacyCommandDefinitions(*json, nullptr)); | 
 |   const char kExpected1[] = R"({ | 
 |     "package1": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "user", | 
 |           "parameters": {"height": {"type": "integer"}} | 
 |         }, | 
 |         "command2": { | 
 |           "minimalRole": "owner", | 
 |           "parameters": {} | 
 |         } | 
 |       } | 
 |     }, | 
 |     "package2": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "user" }, | 
 |         "command2": { "minimalRole": "owner" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected1, manager_.GetTraits()); | 
 |   const char kExpectedComponents1[] = R"({ | 
 |     "__weave__": { "traits": ["package1", "package2"] } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpectedComponents1, manager_.GetComponents()); | 
 |  | 
 |   const char kCommandDefs2[] = R"({ | 
 |     "package2": { | 
 |       "command3": { "minimalRole": "user" } | 
 |     }, | 
 |     "package3": { | 
 |       "command1": { "minimalRole": "user" }, | 
 |       "command2": { "minimalRole": "owner" } | 
 |     } | 
 |   })"; | 
 |   json = CreateDictionaryValue(kCommandDefs2); | 
 |   EXPECT_TRUE(manager_.AddLegacyCommandDefinitions(*json, nullptr)); | 
 |   const char kExpected2[] = R"({ | 
 |     "package1": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "user", | 
 |           "parameters": {"height": {"type": "integer"}} | 
 |         }, | 
 |         "command2": { | 
 |           "minimalRole": "owner", | 
 |           "parameters": {} | 
 |         } | 
 |       } | 
 |     }, | 
 |     "package2": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "user" }, | 
 |         "command2": { "minimalRole": "owner" }, | 
 |         "command3": { "minimalRole": "user" } | 
 |       } | 
 |     }, | 
 |     "package3": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "user" }, | 
 |         "command2": { "minimalRole": "owner" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected2, manager_.GetTraits()); | 
 |   const char kExpectedComponents2[] = R"({ | 
 |     "__weave__": { "traits": ["package1", "package2", "package3"] } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpectedComponents2, manager_.GetComponents()); | 
 |  | 
 |   // Redefining existing commands. | 
 |   EXPECT_FALSE(manager_.AddLegacyCommandDefinitions(*json, nullptr)); | 
 |  | 
 |   const char kStateDefs1[] = R"({ | 
 |     "package1": { | 
 |       "prop1": { "type": "string" }, | 
 |       "prop2": { "type": "string" } | 
 |     }, | 
 |     "package4": { | 
 |       "prop3": { "type": "string" }, | 
 |       "prop4": { "type": "string" } | 
 |     } | 
 |   })"; | 
 |   json = CreateDictionaryValue(kStateDefs1); | 
 |   EXPECT_TRUE(manager_.AddLegacyStateDefinitions(*json, nullptr)); | 
 |   const char kExpectedComponents3[] = R"({ | 
 |     "__weave__": { "traits": ["package1", "package2", "package3", "package4"] } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpectedComponents3, manager_.GetComponents()); | 
 |  | 
 |   const char kExpected3[] = R"({ | 
 |     "package1": { | 
 |       "commands": { | 
 |         "command1": { | 
 |           "minimalRole": "user", | 
 |           "parameters": {"height": {"type": "integer"}} | 
 |         }, | 
 |         "command2": { | 
 |           "minimalRole": "owner", | 
 |           "parameters": {} | 
 |         } | 
 |       }, | 
 |       "state": { | 
 |         "prop1": { "type": "string" }, | 
 |         "prop2": { "type": "string" } | 
 |       } | 
 |     }, | 
 |     "package2": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "user" }, | 
 |         "command2": { "minimalRole": "owner" }, | 
 |         "command3": { "minimalRole": "user" } | 
 |       } | 
 |     }, | 
 |     "package3": { | 
 |       "commands": { | 
 |         "command1": { "minimalRole": "user" }, | 
 |         "command2": { "minimalRole": "owner" } | 
 |       } | 
 |     }, | 
 |     "package4": { | 
 |       "state": { | 
 |         "prop3": { "type": "string" }, | 
 |         "prop4": { "type": "string" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected3, manager_.GetTraits()); | 
 |   const char kExpectedComponents4[] = R"({ | 
 |     "__weave__": { "traits": ["package1", "package2", "package3", "package4"] } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpectedComponents4, manager_.GetComponents()); | 
 |  | 
 |   // Redefining existing commands. | 
 |   EXPECT_FALSE(manager_.AddLegacyStateDefinitions(*json, nullptr)); | 
 |  | 
 |   const char kExpected4[] = R"({ | 
 |     "package1": { | 
 |       "command1": { | 
 |         "minimalRole": "user", | 
 |         "parameters": {"height": {"type": "integer"}} | 
 |       }, | 
 |       "command2": { | 
 |         "minimalRole": "owner", | 
 |         "parameters": {} | 
 |       } | 
 |     }, | 
 |     "package2": { | 
 |       "command1": { "minimalRole": "user" }, | 
 |       "command2": { "minimalRole": "owner" }, | 
 |       "command3": { "minimalRole": "user" } | 
 |     }, | 
 |     "package3": { | 
 |       "command1": { "minimalRole": "user" }, | 
 |       "command2": { "minimalRole": "owner" } | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected4, manager_.GetLegacyCommandDefinitions()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, GetLegacyState) { | 
 |   const char kTraits[] = R"({ | 
 |     "trait1": { | 
 |       "state": { | 
 |         "prop1": { "type": "string" }, | 
 |         "prop2": { "type": "string" } | 
 |       } | 
 |     }, | 
 |     "trait2": { | 
 |       "state": { | 
 |         "prop3": { "type": "string" }, | 
 |         "prop4": { "type": "string" } | 
 |       } | 
 |     } | 
 |   })"; | 
 |   auto traits = CreateDictionaryValue(kTraits); | 
 |   ASSERT_TRUE(manager_.LoadTraits(*traits, nullptr)); | 
 |   ASSERT_TRUE(manager_.AddComponent("", "comp1", {"trait1"}, nullptr)); | 
 |   ASSERT_TRUE(manager_.AddComponent("", "comp2", {"trait2"}, nullptr)); | 
 |  | 
 |   ASSERT_TRUE(manager_.SetStatePropertiesFromJson( | 
 |       "comp1", R"({"trait1": {"prop1": "foo", "prop2": "bar"}})", nullptr)); | 
 |   ASSERT_TRUE(manager_.SetStatePropertiesFromJson( | 
 |       "comp2", R"({"trait2": {"prop3": "baz", "prop4": "quux"}})", nullptr)); | 
 |  | 
 |   const char kExpected[] = R"({ | 
 |     "trait1": { | 
 |       "prop1": "foo", | 
 |       "prop2": "bar" | 
 |     }, | 
 |     "trait2": { | 
 |       "prop3": "baz", | 
 |       "prop4": "quux" | 
 |     } | 
 |   })"; | 
 |   EXPECT_JSON_EQ(kExpected, manager_.GetLegacyState()); | 
 | } | 
 |  | 
 | TEST_F(ComponentManagerTest, TestMockComponentManager) { | 
 |   // Check that all the virtual methods are mocked out. | 
 |   MockComponentManager mock; | 
 | } | 
 |  | 
 | }  // namespace weave |