mirror of
https://github.com/classilla/tenfourfox.git
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224 lines
6.6 KiB
C++
224 lines
6.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gtest/gtest.h"
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#include "mozilla/TaskQueue.h"
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#include "mozilla/MozPromise.h"
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#include "nsISupportsImpl.h"
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#include "mozilla/SharedThreadPool.h"
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#include "VideoUtils.h"
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using namespace mozilla;
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typedef MozPromise<int, double, false> TestPromise;
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typedef TestPromise::ResolveOrRejectValue RRValue;
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class MOZ_STACK_CLASS AutoTaskQueue
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{
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public:
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AutoTaskQueue()
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: mTaskQueue(new TaskQueue(GetMediaThreadPool(MediaThreadType::PLAYBACK)))
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{}
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~AutoTaskQueue()
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{
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mTaskQueue->AwaitShutdownAndIdle();
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}
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TaskQueue* Queue() { return mTaskQueue; }
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private:
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RefPtr<TaskQueue> mTaskQueue;
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};
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class DelayedResolveOrReject : public nsRunnable
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{
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public:
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DelayedResolveOrReject(TaskQueue* aTaskQueue,
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TestPromise::Private* aPromise,
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TestPromise::ResolveOrRejectValue aValue,
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int aIterations)
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: mTaskQueue(aTaskQueue)
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, mPromise(aPromise)
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, mValue(aValue)
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, mIterations(aIterations)
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{}
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NS_IMETHODIMP Run()
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{
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MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
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if (!mPromise) {
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// Canceled.
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return NS_OK;
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}
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if (--mIterations == 0) {
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mPromise->ResolveOrReject(mValue, __func__);
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} else {
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nsCOMPtr<nsIRunnable> r = this;
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mTaskQueue->Dispatch(r.forget());
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}
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return NS_OK;
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}
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void Cancel() {
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mPromise = nullptr;
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}
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protected:
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~DelayedResolveOrReject() {}
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private:
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RefPtr<TaskQueue> mTaskQueue;
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RefPtr<TestPromise::Private> mPromise;
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TestPromise::ResolveOrRejectValue mValue;
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int mIterations;
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};
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template<typename FunctionType>
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void
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RunOnTaskQueue(TaskQueue* aQueue, FunctionType aFun)
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{
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nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction(aFun);
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aQueue->Dispatch(r.forget());
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}
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// std::function can't come soon enough. :-(
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#define DO_FAIL []()->void { EXPECT_TRUE(false); }
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TEST(MozPromise, BasicResolve)
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{
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AutoTaskQueue atq;
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RefPtr<TaskQueue> queue = atq.Queue();
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RunOnTaskQueue(queue, [queue] () -> void {
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TestPromise::CreateAndResolve(42, __func__)->Then(queue, __func__,
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[queue] (int aResolveValue) -> void { EXPECT_EQ(aResolveValue, 42); queue->BeginShutdown(); },
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DO_FAIL);
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});
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}
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TEST(MozPromise, BasicReject)
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{
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AutoTaskQueue atq;
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RefPtr<TaskQueue> queue = atq.Queue();
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RunOnTaskQueue(queue, [queue] () -> void {
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TestPromise::CreateAndReject(42.0, __func__)->Then(queue, __func__,
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DO_FAIL,
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[queue] (int aRejectValue) -> void { EXPECT_EQ(aRejectValue, 42.0); queue->BeginShutdown(); });
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});
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}
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TEST(MozPromise, AsyncResolve)
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{
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AutoTaskQueue atq;
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RefPtr<TaskQueue> queue = atq.Queue();
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RunOnTaskQueue(queue, [queue] () -> void {
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RefPtr<TestPromise::Private> p = new TestPromise::Private(__func__);
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// Kick off three racing tasks, and make sure we get the one that finishes earliest.
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RefPtr<DelayedResolveOrReject> a = new DelayedResolveOrReject(queue, p, RRValue::MakeResolve(32), 10);
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RefPtr<DelayedResolveOrReject> b = new DelayedResolveOrReject(queue, p, RRValue::MakeResolve(42), 5);
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RefPtr<DelayedResolveOrReject> c = new DelayedResolveOrReject(queue, p, RRValue::MakeReject(32.0), 7);
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nsCOMPtr<nsIRunnable> ref = a.get();
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queue->Dispatch(ref.forget());
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ref = b.get();
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queue->Dispatch(ref.forget());
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ref = c.get();
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queue->Dispatch(ref.forget());
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p->Then(queue, __func__, [queue, a, b, c] (int aResolveValue) -> void {
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EXPECT_EQ(aResolveValue, 42);
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a->Cancel();
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b->Cancel();
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c->Cancel();
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queue->BeginShutdown();
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}, DO_FAIL);
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});
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}
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TEST(MozPromise, CompletionPromises)
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{
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bool invokedPass = false;
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AutoTaskQueue atq;
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RefPtr<TaskQueue> queue = atq.Queue();
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RunOnTaskQueue(queue, [queue, &invokedPass] () -> void {
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TestPromise::CreateAndResolve(40, __func__)
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->Then(queue, __func__,
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[] (int aVal) -> RefPtr<TestPromise> { return TestPromise::CreateAndResolve(aVal + 10, __func__); },
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DO_FAIL)
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->CompletionPromise()
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->Then(queue, __func__, [&invokedPass] () -> void { invokedPass = true; }, DO_FAIL)
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->CompletionPromise()
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->Then(queue, __func__,
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[queue] (int aVal) -> RefPtr<TestPromise> {
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RefPtr<TestPromise::Private> p = new TestPromise::Private(__func__);
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nsCOMPtr<nsIRunnable> resolver = new DelayedResolveOrReject(queue, p, RRValue::MakeResolve(aVal - 8), 10);
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queue->Dispatch(resolver.forget());
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return RefPtr<TestPromise>(p);
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},
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DO_FAIL)
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->CompletionPromise()
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->Then(queue, __func__,
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[queue] (int aVal) -> RefPtr<TestPromise> { return TestPromise::CreateAndReject(double(aVal - 42) + 42.0, __func__); },
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DO_FAIL)
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->CompletionPromise()
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->Then(queue, __func__,
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DO_FAIL,
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[queue, &invokedPass] (double aVal) -> void { EXPECT_EQ(aVal, 42.0); EXPECT_TRUE(invokedPass); queue->BeginShutdown(); });
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});
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}
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TEST(MozPromise, PromiseAllResolve)
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{
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AutoTaskQueue atq;
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RefPtr<TaskQueue> queue = atq.Queue();
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RunOnTaskQueue(queue, [queue] () -> void {
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nsTArray<RefPtr<TestPromise>> promises;
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promises.AppendElement(TestPromise::CreateAndResolve(22, __func__));
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promises.AppendElement(TestPromise::CreateAndResolve(32, __func__));
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promises.AppendElement(TestPromise::CreateAndResolve(42, __func__));
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TestPromise::All(queue, promises)->Then(queue, __func__,
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[queue] (const nsTArray<int>& aResolveValues) -> void {
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EXPECT_EQ(aResolveValues.Length(), 3UL);
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EXPECT_EQ(aResolveValues[0], 22);
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EXPECT_EQ(aResolveValues[1], 32);
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EXPECT_EQ(aResolveValues[2], 42);
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queue->BeginShutdown();
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},
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DO_FAIL
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);
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});
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}
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TEST(MozPromise, PromiseAllReject)
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{
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AutoTaskQueue atq;
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RefPtr<TaskQueue> queue = atq.Queue();
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RunOnTaskQueue(queue, [queue] () -> void {
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nsTArray<RefPtr<TestPromise>> promises;
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promises.AppendElement(TestPromise::CreateAndResolve(22, __func__));
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promises.AppendElement(TestPromise::CreateAndReject(32.0, __func__));
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promises.AppendElement(TestPromise::CreateAndResolve(42, __func__));
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// Ensure that more than one rejection doesn't cause a crash (bug #1207312)
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promises.AppendElement(TestPromise::CreateAndReject(52.0, __func__));
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TestPromise::All(queue, promises)->Then(queue, __func__,
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DO_FAIL,
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[queue] (float aRejectValue) -> void {
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EXPECT_EQ(aRejectValue, 32.0);
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queue->BeginShutdown();
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}
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);
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});
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}
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#undef DO_FAIL
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