| // Copyright 2020 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "internal/platform/atomic_reference.h" |
| |
| #include "gtest/gtest.h" |
| |
| namespace location { |
| namespace nearby { |
| namespace { |
| |
| struct BigSizedStruct { |
| int data[100]{}; |
| }; |
| |
| enum TestEnum { |
| kValue1 = 1, |
| kValue2 = 2, |
| }; |
| |
| enum class ScopedTestEnum { |
| kValue1 = 1, |
| kValue2 = 2, |
| }; |
| |
| bool operator==(const BigSizedStruct& a, const BigSizedStruct& b) { |
| return memcmp(a.data, b.data, sizeof(BigSizedStruct::data)) == 0; |
| } |
| |
| bool operator!=(const BigSizedStruct& a, const BigSizedStruct& b) { |
| return !(a == b); |
| } |
| |
| } // namespace |
| |
| TEST(AtomicReferenceTest, SupportIntegralTypes) { |
| AtomicReference<int> atomic_ref({}); |
| atomic_ref.Set(5); |
| EXPECT_EQ(atomic_ref.Get(), 5); |
| } |
| |
| TEST(AtomicReferenceTest, SupportEnum) { |
| AtomicReference<TestEnum> atomic_ref({}); |
| atomic_ref.Set(TestEnum::kValue1); |
| EXPECT_EQ(atomic_ref.Get(), TestEnum::kValue1); |
| } |
| |
| TEST(AtomicReferenceTest, SupportScopedEnum) { |
| AtomicReference<ScopedTestEnum> atomic_ref({}); |
| atomic_ref.Set(ScopedTestEnum::kValue1); |
| EXPECT_EQ(atomic_ref.Get(), ScopedTestEnum::kValue1); |
| } |
| |
| TEST(AtomicReferenceTest, SetTakesCopyOfValue) { |
| // Default constructor is zero-initalizing all data in BigSizedStruct. |
| BigSizedStruct v1; |
| AtomicReference<BigSizedStruct> atomic_ref({}); |
| v1.data[0] = 5; // Changing value before calling set() will affect stored |
| v1.data[7] = 3; // value. |
| atomic_ref.Set(v1); |
| v1.data[1] = 6; // Changing value after calling set() will not affect stored |
| v1.data[5] = 4; // value. |
| BigSizedStruct v2 = atomic_ref.Get(); |
| EXPECT_NE(v1, v2); |
| v1.data[1] = 0; |
| v1.data[5] = 0; |
| EXPECT_EQ(v2, v1); |
| } |
| |
| TEST(AtomicReferenceTest, SupportObjects) { |
| std::string s{"test"}; |
| AtomicReference<std::string> atomic_ref({}); |
| atomic_ref.Set(s); |
| EXPECT_EQ(s, atomic_ref.Get()); |
| } |
| |
| } // namespace nearby |
| } // namespace location |