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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include <memory> |
| 6 #include <vector> |
| 7 |
| 8 #include "base/bind.h" |
| 9 #include "base/message_loop/message_loop.h" |
| 10 #include "base/run_loop.h" |
| 11 #include "services/resource_coordinator/coordination_unit/coordination_unit_prov
ider_impl.h" |
| 12 #include "testing/gtest/include/gtest/gtest.h" |
| 13 |
| 14 namespace resource_coordinator { |
| 15 |
| 16 namespace { |
| 17 |
| 18 class CoordinationUnitImplTest : public testing::Test { |
| 19 public: |
| 20 CoordinationUnitImplTest() : provider_(nullptr) {} |
| 21 ~CoordinationUnitImplTest() override {} |
| 22 |
| 23 // testing::Test: |
| 24 void TearDown() override { base::RunLoop().RunUntilIdle(); } |
| 25 |
| 26 protected: |
| 27 CoordinationUnitProviderImpl* provider() { return &provider_; } |
| 28 |
| 29 private: |
| 30 base::MessageLoop message_loop_; |
| 31 |
| 32 CoordinationUnitProviderImpl provider_; |
| 33 }; |
| 34 |
| 35 class TestCoordinationUnit : public mojom::PolicyCallback { |
| 36 public: |
| 37 TestCoordinationUnit(CoordinationUnitProviderImpl* provider, |
| 38 const CoordinationUnitType& type, |
| 39 const std::string& id) |
| 40 : binding_(this) { |
| 41 CHECK(provider); |
| 42 |
| 43 CoordinationUnitID new_cu_id(type, id); |
| 44 mojom::CoordinationUnitPtr coordination_unit; |
| 45 provider->CreateCoordinationUnit(mojo::MakeRequest(&coordination_unit_), |
| 46 new_cu_id); |
| 47 |
| 48 base::RunLoop callback; |
| 49 SetGetIDClosure(callback.QuitClosure()); |
| 50 coordination_unit_->SetPolicyCallback(GetPolicyCallback()); |
| 51 // Forces us to wait for the creation of the CUID to finish. |
| 52 coordination_unit_->GetID(base::Bind(&TestCoordinationUnit::GetIDCallback, |
| 53 base::Unretained(this))); |
| 54 |
| 55 callback.Run(); |
| 56 } |
| 57 |
| 58 void GetIDCallback(const CoordinationUnitID& cu_id) { |
| 59 id_ = cu_id; |
| 60 get_id_closure_.Run(); |
| 61 } |
| 62 |
| 63 void SetGetIDClosure(const base::Closure& get_id_closure) { |
| 64 get_id_closure_ = get_id_closure; |
| 65 } |
| 66 |
| 67 void SetPolicyClosure(const base::Closure& policy_closure) { |
| 68 policy_update_closure_ = policy_closure; |
| 69 } |
| 70 |
| 71 mojom::PolicyCallbackPtr GetPolicyCallback() { |
| 72 return binding_.CreateInterfacePtrAndBind(); |
| 73 } |
| 74 |
| 75 // The CU will always send policy updates on events (including parent events) |
| 76 void ForcePolicyUpdates() { |
| 77 base::RunLoop callback; |
| 78 SetPolicyClosure(callback.QuitClosure()); |
| 79 mojom::EventPtr event = mojom::Event::New(); |
| 80 event->type = mojom::EventType::TEST_EVENT; |
| 81 coordination_unit_->SendEvent(std::move(event)); |
| 82 callback.Run(); |
| 83 } |
| 84 |
| 85 const mojom::CoordinationUnitPtr& interface() const { |
| 86 return coordination_unit_; |
| 87 } |
| 88 |
| 89 const CoordinationUnitID& id() const { return id_; } |
| 90 |
| 91 // mojom::PolicyCallback: |
| 92 void SetPolicy(resource_coordinator::mojom::PolicyPtr policy) override { |
| 93 if (policy_update_closure_) |
| 94 policy_update_closure_.Run(); |
| 95 } |
| 96 |
| 97 private: |
| 98 base::Closure policy_update_closure_; |
| 99 base::Closure get_id_closure_; |
| 100 |
| 101 mojo::Binding<mojom::PolicyCallback> binding_; |
| 102 mojom::CoordinationUnitPtr coordination_unit_; |
| 103 CoordinationUnitID id_; |
| 104 }; |
| 105 |
| 106 } // namespace |
| 107 |
| 108 TEST_F(CoordinationUnitImplTest, BasicPolicyCallback) { |
| 109 TestCoordinationUnit test_coordination_unit( |
| 110 provider(), CoordinationUnitType::WEBCONTENTS, "test_id"); |
| 111 test_coordination_unit.ForcePolicyUpdates(); |
| 112 } |
| 113 |
| 114 TEST_F(CoordinationUnitImplTest, AddChild) { |
| 115 TestCoordinationUnit parent_unit( |
| 116 provider(), CoordinationUnitType::WEBCONTENTS, "parent_unit"); |
| 117 |
| 118 TestCoordinationUnit child_unit(provider(), CoordinationUnitType::WEBCONTENTS, |
| 119 "child_unit"); |
| 120 |
| 121 child_unit.ForcePolicyUpdates(); |
| 122 parent_unit.ForcePolicyUpdates(); |
| 123 |
| 124 { |
| 125 base::RunLoop callback; |
| 126 child_unit.SetPolicyClosure(callback.QuitClosure()); |
| 127 parent_unit.interface()->AddChild(child_unit.id()); |
| 128 callback.Run(); |
| 129 } |
| 130 |
| 131 { |
| 132 base::RunLoop parent_callback; |
| 133 base::RunLoop child_callback; |
| 134 parent_unit.SetPolicyClosure(parent_callback.QuitClosure()); |
| 135 child_unit.SetPolicyClosure(child_callback.QuitClosure()); |
| 136 |
| 137 // This event should force the policy to recalculated for all children. |
| 138 mojom::EventPtr event = mojom::Event::New(); |
| 139 event->type = mojom::EventType::TEST_EVENT; |
| 140 parent_unit.interface()->SendEvent(std::move(event)); |
| 141 |
| 142 parent_callback.Run(); |
| 143 child_callback.Run(); |
| 144 } |
| 145 } |
| 146 |
| 147 TEST_F(CoordinationUnitImplTest, CyclicGraphUnits) { |
| 148 TestCoordinationUnit parent_unit( |
| 149 provider(), CoordinationUnitType::WEBCONTENTS, std::string()); |
| 150 |
| 151 TestCoordinationUnit child_unit(provider(), CoordinationUnitType::WEBCONTENTS, |
| 152 std::string()); |
| 153 |
| 154 child_unit.ForcePolicyUpdates(); |
| 155 parent_unit.ForcePolicyUpdates(); |
| 156 |
| 157 { |
| 158 base::RunLoop callback; |
| 159 child_unit.SetPolicyClosure(callback.QuitClosure()); |
| 160 parent_unit.interface()->AddChild(child_unit.id()); |
| 161 callback.Run(); |
| 162 } |
| 163 |
| 164 // This should fail, due to the existing child-parent relationship. |
| 165 // Otherwise we end up with infinite recursion and crash when recalculating |
| 166 // policies below. |
| 167 child_unit.interface()->AddChild(parent_unit.id()); |
| 168 |
| 169 { |
| 170 base::RunLoop parent_callback; |
| 171 base::RunLoop child_callback; |
| 172 parent_unit.SetPolicyClosure(parent_callback.QuitClosure()); |
| 173 child_unit.SetPolicyClosure(child_callback.QuitClosure()); |
| 174 |
| 175 // This event should force the policy to recalculated for all children. |
| 176 mojom::EventPtr event = mojom::Event::New(); |
| 177 event->type = mojom::EventType::TEST_EVENT; |
| 178 parent_unit.interface()->SendEvent(std::move(event)); |
| 179 |
| 180 parent_callback.Run(); |
| 181 child_callback.Run(); |
| 182 } |
| 183 } |
| 184 |
| 185 } // namespace resource_coordinator |
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