mirror of
https://github.com/kidfromjupiter/nearby.git
synced 2026-09-14 22:56:12 -04:00
117 lines
3.2 KiB
C++
117 lines
3.2 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "internal/platform/future.h"
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#include "gtest/gtest.h"
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#include "absl/time/clock.h"
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#include "absl/time/time.h"
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#include "internal/platform/single_thread_executor.h"
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namespace location {
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namespace nearby {
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namespace {
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enum TestEnum {
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kValue1 = 1,
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kValue2 = 2,
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};
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enum class ScopedTestEnum {
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kValue1 = 1,
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kValue2 = 2,
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};
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struct BigSizedStruct {
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int data[100]{};
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};
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bool operator==(const BigSizedStruct& a, const BigSizedStruct& b) {
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return memcmp(a.data, b.data, sizeof(BigSizedStruct::data)) == 0;
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}
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bool operator!=(const BigSizedStruct& a, const BigSizedStruct& b) {
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return !(a == b);
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}
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} // namespace
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TEST(FutureTest, SupportIntegralTypes) {
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Future<int> future;
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future.Set(5);
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EXPECT_EQ(future.Get().exception(), Exception::kSuccess);
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EXPECT_EQ(future.Get().result(), 5);
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}
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TEST(FutureTest, SetExceptionIsPropagated) {
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Future<int> future;
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future.SetException({Exception::kIo});
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EXPECT_EQ(future.Get().exception(), Exception::kIo);
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}
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TEST(FutureTest, SupportEnum) {
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Future<TestEnum> future;
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future.Set(TestEnum::kValue1);
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EXPECT_EQ(future.Get().exception(), Exception::kSuccess);
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EXPECT_EQ(future.Get().result(), TestEnum::kValue1);
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}
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TEST(FutureTest, SupportScopedEnum) {
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Future<ScopedTestEnum> future;
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future.Set(ScopedTestEnum::kValue1);
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EXPECT_EQ(future.Get().exception(), Exception::kSuccess);
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EXPECT_EQ(future.Get().result(), ScopedTestEnum::kValue1);
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}
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TEST(FutureTest, SetTakesCopyOfValue) {
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// Default constructor is zero-initalizing all data in BigSizedStruct.
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BigSizedStruct v1;
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Future<BigSizedStruct> future;
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v1.data[0] = 5; // Changing value before calling Set() will affect stored
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v1.data[7] = 3; // value.
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future.Set(v1);
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v1.data[1] = 6; // Changing value after calling Set() will not affect stored
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v1.data[5] = 4; // value.
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EXPECT_EQ(future.Get().exception(), Exception::kSuccess);
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BigSizedStruct v2 = future.Get().result();
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EXPECT_NE(v1, v2);
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v1.data[1] = 0;
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v1.data[5] = 0;
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EXPECT_EQ(v2, v1);
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}
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TEST(FutureTest, SetsExceptionOnTimeout) {
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Future<int> future;
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EXPECT_EQ(future.Get(absl::Milliseconds(100)).exception(),
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Exception::kTimeout);
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}
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TEST(FutureTest, GetBlocksWhenNotReady) {
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Future<int> future;
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SingleThreadExecutor executor;
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absl::Time start = absl::Now();
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executor.Execute([&future]() {
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absl::SleepFor(absl::Milliseconds(500));
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future.Set(10);
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});
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auto response = future.Get();
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absl::Duration blocked_duration = absl::Now() - start;
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EXPECT_EQ(response.result(), 10);
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EXPECT_GE(blocked_duration, absl::Milliseconds(500));
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}
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} // namespace nearby
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} // namespace location
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