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| 1 // Copyright 2016 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 "blimp/helium/lww_register.h" | |
| 6 | |
| 7 #include <memory> | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/bind.h" | |
| 11 #include "base/macros.h" | |
| 12 #include "base/memory/ptr_util.h" | |
| 13 #include "blimp/helium/helium_test.h" | |
| 14 #include "blimp/helium/revision_generator.h" | |
| 15 #include "blimp/helium/version_vector.h" | |
| 16 #include "testing/gmock/include/gmock/gmock.h" | |
| 17 #include "testing/gtest/include/gtest/gtest.h" | |
| 18 #include "third_party/protobuf/src/google/protobuf/io/zero_copy_stream_impl_lite
.h" | |
| 19 | |
| 20 namespace blimp { | |
| 21 namespace helium { | |
| 22 namespace { | |
| 23 | |
| 24 class LwwRegisterTest : public HeliumTest { | |
| 25 public: | |
| 26 LwwRegisterTest() {} | |
| 27 ~LwwRegisterTest() override = default; | |
| 28 | |
| 29 MOCK_METHOD0(OnEngineCallbackCalled, void()); | |
| 30 MOCK_METHOD0(OnClientCallbackCalled, void()); | |
| 31 | |
| 32 protected: | |
| 33 void Initialize(Peer bias) { | |
| 34 client_ = base::MakeUnique<LwwRegister<int>>(bias, Peer::CLIENT); | |
| 35 engine_ = base::MakeUnique<LwwRegister<int>>(bias, Peer::ENGINE); | |
| 36 | |
| 37 client_->SetLocalUpdateCallback(base::Bind( | |
| 38 &LwwRegisterTest::OnClientCallbackCalled, base::Unretained(this))); | |
| 39 engine_->SetLocalUpdateCallback(base::Bind( | |
| 40 &LwwRegisterTest::OnEngineCallbackCalled, base::Unretained(this))); | |
| 41 } | |
| 42 | |
| 43 // Takes a changeset from |from_lww_register| and applies it to | |
| 44 // |to_lww_register|. | |
| 45 void Sync(const LwwRegister<int>& from_lww_register, | |
| 46 LwwRegister<int>* to_lww_register); | |
| 47 | |
| 48 std::unique_ptr<LwwRegister<int>> client_; | |
| 49 std::unique_ptr<LwwRegister<int>> engine_; | |
| 50 | |
| 51 private: | |
| 52 DISALLOW_COPY_AND_ASSIGN(LwwRegisterTest); | |
| 53 }; | |
| 54 | |
| 55 void LwwRegisterTest::Sync(const LwwRegister<int>& from_lww_register, | |
| 56 LwwRegister<int>* to_lww_register) { | |
| 57 auto changeset = | |
| 58 from_lww_register.CreateChangeset(from_lww_register.GetRevision()); | |
| 59 ASSERT_TRUE(to_lww_register->ValidateChangeset(*changeset)); | |
| 60 to_lww_register->ApplyChangeset(*changeset); | |
| 61 } | |
| 62 | |
| 63 TEST_F(LwwRegisterTest, SetIncrementsLocalVersion) { | |
| 64 Initialize(Peer::CLIENT); | |
| 65 | |
| 66 EXPECT_CALL(*this, OnClientCallbackCalled()).Times(1); | |
| 67 EXPECT_CALL(*this, OnEngineCallbackCalled()).Times(0); | |
| 68 | |
| 69 Revision earlier_version = client_->GetRevision(); | |
| 70 client_->Set(42); | |
| 71 Revision current_version = client_->GetRevision(); | |
| 72 | |
| 73 EXPECT_EQ(42, client_->Get()); | |
| 74 EXPECT_LT(earlier_version, current_version); | |
| 75 } | |
| 76 | |
| 77 TEST_F(LwwRegisterTest, ApplyLaterChangeset) { | |
| 78 Initialize(Peer::CLIENT); | |
| 79 | |
| 80 EXPECT_CALL(*this, OnClientCallbackCalled()).Times(1); | |
| 81 EXPECT_CALL(*this, OnEngineCallbackCalled()).Times(0); | |
| 82 | |
| 83 client_->Set(123); | |
| 84 Sync(*client_, engine_.get()); | |
| 85 | |
| 86 EXPECT_EQ(123, engine_->Get()); | |
| 87 } | |
| 88 | |
| 89 TEST_F(LwwRegisterTest, ApplyEarlierChangeset) { | |
| 90 Initialize(Peer::CLIENT); | |
| 91 | |
| 92 EXPECT_CALL(*this, OnClientCallbackCalled()).Times(1); | |
| 93 EXPECT_CALL(*this, OnEngineCallbackCalled()).Times(1); | |
| 94 | |
| 95 client_->Set(123); | |
| 96 Sync(*client_, engine_.get()); | |
| 97 | |
| 98 engine_->Set(456); | |
| 99 Sync(*client_, engine_.get()); | |
| 100 | |
| 101 EXPECT_EQ(456, engine_->Get()); | |
| 102 } | |
| 103 | |
| 104 TEST_F(LwwRegisterTest, ClientApplyChangesetConflictClientWins) { | |
| 105 Initialize(Peer::CLIENT); | |
| 106 | |
| 107 EXPECT_CALL(*this, OnClientCallbackCalled()).Times(1); | |
| 108 EXPECT_CALL(*this, OnEngineCallbackCalled()).Times(1); | |
| 109 | |
| 110 client_->Set(123); | |
| 111 engine_->Set(456); | |
| 112 Sync(*engine_, client_.get()); | |
| 113 | |
| 114 EXPECT_EQ(123, client_->Get()); | |
| 115 } | |
| 116 | |
| 117 TEST_F(LwwRegisterTest, EngineApplyChangesetConflictClientWins) { | |
| 118 Initialize(Peer::CLIENT); | |
| 119 | |
| 120 EXPECT_CALL(*this, OnClientCallbackCalled()).Times(1); | |
| 121 EXPECT_CALL(*this, OnEngineCallbackCalled()).Times(1); | |
| 122 | |
| 123 client_->Set(123); | |
| 124 engine_->Set(456); | |
| 125 Sync(*client_, engine_.get()); | |
| 126 | |
| 127 EXPECT_EQ(123, engine_->Get()); | |
| 128 } | |
| 129 | |
| 130 TEST_F(LwwRegisterTest, ClientApplyChangesetConflictEngineWins) { | |
| 131 Initialize(Peer::ENGINE); | |
| 132 | |
| 133 EXPECT_CALL(*this, OnClientCallbackCalled()).Times(1); | |
| 134 EXPECT_CALL(*this, OnEngineCallbackCalled()).Times(1); | |
| 135 | |
| 136 client_->Set(123); | |
| 137 engine_->Set(456); | |
| 138 Sync(*engine_, client_.get()); | |
| 139 | |
| 140 EXPECT_EQ(456, client_->Get()); | |
| 141 } | |
| 142 | |
| 143 TEST_F(LwwRegisterTest, EngineApplyChangesetConflictEngineWins) { | |
| 144 Initialize(Peer::ENGINE); | |
| 145 | |
| 146 EXPECT_CALL(*this, OnClientCallbackCalled()).Times(1); | |
| 147 EXPECT_CALL(*this, OnEngineCallbackCalled()).Times(1); | |
| 148 | |
| 149 client_->Set(123); | |
| 150 engine_->Set(456); | |
| 151 Sync(*client_, engine_.get()); | |
| 152 | |
| 153 EXPECT_EQ(456, engine_->Get()); | |
| 154 } | |
| 155 | |
| 156 } // namespace | |
| 157 } // namespace helium | |
| 158 } // namespace blimp | |
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Chromium Code Reviews
Issue 2602103002:
Delete blimp/helium and remove references to it from dependent targets (Closed)
