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-rw-r--r--xpcom/tests/gtest/TestMozPromise.cpp756
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diff --git a/xpcom/tests/gtest/TestMozPromise.cpp b/xpcom/tests/gtest/TestMozPromise.cpp
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+++ b/xpcom/tests/gtest/TestMozPromise.cpp
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "VideoUtils.h"
+#include "base/message_loop.h"
+#include "gtest/gtest.h"
+#include "mozilla/MozPromise.h"
+#include "mozilla/SharedThreadPool.h"
+#include "mozilla/TaskQueue.h"
+#include "mozilla/Unused.h"
+#include "nsISupportsImpl.h"
+
+using namespace mozilla;
+
+typedef MozPromise<int, double, false> TestPromise;
+typedef MozPromise<int, double, true /* exclusive */> TestPromiseExcl;
+typedef TestPromise::ResolveOrRejectValue RRValue;
+
+class MOZ_STACK_CLASS AutoTaskQueue {
+ public:
+ AutoTaskQueue()
+ : mTaskQueue(
+ TaskQueue::Create(GetMediaThreadPool(MediaThreadType::SUPERVISOR),
+ "TestMozPromise AutoTaskQueue")) {}
+
+ ~AutoTaskQueue() { mTaskQueue->AwaitShutdownAndIdle(); }
+
+ TaskQueue* Queue() { return mTaskQueue; }
+
+ private:
+ RefPtr<TaskQueue> mTaskQueue;
+};
+
+class DelayedResolveOrReject : public Runnable {
+ public:
+ DelayedResolveOrReject(TaskQueue* aTaskQueue, TestPromise::Private* aPromise,
+ const TestPromise::ResolveOrRejectValue& aValue,
+ int aIterations)
+ : mozilla::Runnable("DelayedResolveOrReject"),
+ mTaskQueue(aTaskQueue),
+ mPromise(aPromise),
+ mValue(aValue),
+ mIterations(aIterations) {}
+
+ NS_IMETHOD Run() override {
+ MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
+ if (!mPromise) {
+ // Canceled.
+ return NS_OK;
+ }
+
+ if (--mIterations == 0) {
+ mPromise->ResolveOrReject(mValue, __func__);
+ return NS_OK;
+ }
+
+ nsCOMPtr<nsIRunnable> r = this;
+ return mTaskQueue->Dispatch(r.forget());
+ }
+
+ void Cancel() { mPromise = nullptr; }
+
+ protected:
+ ~DelayedResolveOrReject() = default;
+
+ private:
+ RefPtr<TaskQueue> mTaskQueue;
+ RefPtr<TestPromise::Private> mPromise;
+ TestPromise::ResolveOrRejectValue mValue;
+ int mIterations;
+};
+
+template <typename FunctionType>
+void RunOnTaskQueue(TaskQueue* aQueue, FunctionType aFun) {
+ nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction("RunOnTaskQueue", aFun);
+ Unused << aQueue->Dispatch(r.forget());
+}
+
+// std::function can't come soon enough. :-(
+#define DO_FAIL \
+ []() { \
+ EXPECT_TRUE(false); \
+ return TestPromise::CreateAndReject(0, __func__); \
+ }
+
+TEST(MozPromise, BasicResolve)
+{
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+ RunOnTaskQueue(queue, [queue]() -> void {
+ TestPromise::CreateAndResolve(42, __func__)
+ ->Then(
+ queue, __func__,
+ [queue](int aResolveValue) -> void {
+ EXPECT_EQ(aResolveValue, 42);
+ queue->BeginShutdown();
+ },
+ DO_FAIL);
+ });
+}
+
+TEST(MozPromise, BasicReject)
+{
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+ RunOnTaskQueue(queue, [queue]() -> void {
+ TestPromise::CreateAndReject(42.0, __func__)
+ ->Then(queue, __func__, DO_FAIL, [queue](int aRejectValue) -> void {
+ EXPECT_EQ(aRejectValue, 42.0);
+ queue->BeginShutdown();
+ });
+ });
+}
+
+TEST(MozPromise, BasicResolveOrRejectResolved)
+{
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+ RunOnTaskQueue(queue, [queue]() -> void {
+ TestPromise::CreateAndResolve(42, __func__)
+ ->Then(
+ queue, __func__,
+ [queue](const TestPromise::ResolveOrRejectValue& aValue) -> void {
+ EXPECT_TRUE(aValue.IsResolve());
+ EXPECT_FALSE(aValue.IsReject());
+ EXPECT_FALSE(aValue.IsNothing());
+ EXPECT_EQ(aValue.ResolveValue(), 42);
+ queue->BeginShutdown();
+ });
+ });
+}
+
+TEST(MozPromise, BasicResolveOrRejectRejected)
+{
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+ RunOnTaskQueue(queue, [queue]() -> void {
+ TestPromise::CreateAndReject(42.0, __func__)
+ ->Then(
+ queue, __func__,
+ [queue](const TestPromise::ResolveOrRejectValue& aValue) -> void {
+ EXPECT_TRUE(aValue.IsReject());
+ EXPECT_FALSE(aValue.IsResolve());
+ EXPECT_FALSE(aValue.IsNothing());
+ EXPECT_EQ(aValue.RejectValue(), 42.0);
+ queue->BeginShutdown();
+ });
+ });
+}
+
+TEST(MozPromise, AsyncResolve)
+{
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+ RunOnTaskQueue(queue, [queue]() -> void {
+ RefPtr<TestPromise::Private> p = new TestPromise::Private(__func__);
+
+ // Kick off three racing tasks, and make sure we get the one that finishes
+ // earliest.
+ RefPtr<DelayedResolveOrReject> a =
+ new DelayedResolveOrReject(queue, p, RRValue::MakeResolve(32), 10);
+ RefPtr<DelayedResolveOrReject> b =
+ new DelayedResolveOrReject(queue, p, RRValue::MakeResolve(42), 5);
+ RefPtr<DelayedResolveOrReject> c =
+ new DelayedResolveOrReject(queue, p, RRValue::MakeReject(32.0), 7);
+
+ nsCOMPtr<nsIRunnable> ref = a.get();
+ Unused << queue->Dispatch(ref.forget());
+ ref = b.get();
+ Unused << queue->Dispatch(ref.forget());
+ ref = c.get();
+ Unused << queue->Dispatch(ref.forget());
+
+ p->Then(
+ queue, __func__,
+ [queue, a, b, c](int aResolveValue) -> void {
+ EXPECT_EQ(aResolveValue, 42);
+ a->Cancel();
+ b->Cancel();
+ c->Cancel();
+ queue->BeginShutdown();
+ },
+ DO_FAIL);
+ });
+}
+
+TEST(MozPromise, CompletionPromises)
+{
+ bool invokedPass = false;
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+ RunOnTaskQueue(queue, [queue, &invokedPass]() -> void {
+ TestPromise::CreateAndResolve(40, __func__)
+ ->Then(
+ queue, __func__,
+ [](int aVal) -> RefPtr<TestPromise> {
+ return TestPromise::CreateAndResolve(aVal + 10, __func__);
+ },
+ DO_FAIL)
+ ->Then(
+ queue, __func__,
+ [&invokedPass](int aVal) {
+ invokedPass = true;
+ return TestPromise::CreateAndResolve(aVal, __func__);
+ },
+ DO_FAIL)
+ ->Then(
+ queue, __func__,
+ [queue](int aVal) -> RefPtr<TestPromise> {
+ RefPtr<TestPromise::Private> p =
+ new TestPromise::Private(__func__);
+ nsCOMPtr<nsIRunnable> resolver = new DelayedResolveOrReject(
+ queue, p, RRValue::MakeResolve(aVal - 8), 10);
+ Unused << queue->Dispatch(resolver.forget());
+ return RefPtr<TestPromise>(p);
+ },
+ DO_FAIL)
+ ->Then(
+ queue, __func__,
+ [](int aVal) -> RefPtr<TestPromise> {
+ return TestPromise::CreateAndReject(double(aVal - 42) + 42.0,
+ __func__);
+ },
+ DO_FAIL)
+ ->Then(queue, __func__, DO_FAIL,
+ [queue, &invokedPass](double aVal) -> void {
+ EXPECT_EQ(aVal, 42.0);
+ EXPECT_TRUE(invokedPass);
+ queue->BeginShutdown();
+ });
+ });
+}
+
+TEST(MozPromise, PromiseAllResolve)
+{
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+ RunOnTaskQueue(queue, [queue]() -> void {
+ nsTArray<RefPtr<TestPromise>> promises;
+ promises.AppendElement(TestPromise::CreateAndResolve(22, __func__));
+ promises.AppendElement(TestPromise::CreateAndResolve(32, __func__));
+ promises.AppendElement(TestPromise::CreateAndResolve(42, __func__));
+
+ TestPromise::All(queue, promises)
+ ->Then(
+ queue, __func__,
+ [queue](const CopyableTArray<int>& aResolveValues) -> void {
+ EXPECT_EQ(aResolveValues.Length(), 3UL);
+ EXPECT_EQ(aResolveValues[0], 22);
+ EXPECT_EQ(aResolveValues[1], 32);
+ EXPECT_EQ(aResolveValues[2], 42);
+ queue->BeginShutdown();
+ },
+ []() { EXPECT_TRUE(false); });
+ });
+}
+
+TEST(MozPromise, PromiseAllResolveAsync)
+{
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+ RunOnTaskQueue(queue, [queue]() -> void {
+ nsTArray<RefPtr<TestPromise>> promises;
+ promises.AppendElement(InvokeAsync(queue, __func__, []() {
+ return TestPromise::CreateAndResolve(22, __func__);
+ }));
+ promises.AppendElement(InvokeAsync(queue, __func__, []() {
+ return TestPromise::CreateAndResolve(32, __func__);
+ }));
+ promises.AppendElement(InvokeAsync(queue, __func__, []() {
+ return TestPromise::CreateAndResolve(42, __func__);
+ }));
+
+ TestPromise::All(queue, promises)
+ ->Then(
+ queue, __func__,
+ [queue](const CopyableTArray<int>& aResolveValues) -> void {
+ EXPECT_EQ(aResolveValues.Length(), 3UL);
+ EXPECT_EQ(aResolveValues[0], 22);
+ EXPECT_EQ(aResolveValues[1], 32);
+ EXPECT_EQ(aResolveValues[2], 42);
+ queue->BeginShutdown();
+ },
+ []() { EXPECT_TRUE(false); });
+ });
+}
+
+TEST(MozPromise, PromiseAllReject)
+{
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+ RunOnTaskQueue(queue, [queue]() -> void {
+ nsTArray<RefPtr<TestPromise>> promises;
+ promises.AppendElement(TestPromise::CreateAndResolve(22, __func__));
+ promises.AppendElement(TestPromise::CreateAndReject(32.0, __func__));
+ promises.AppendElement(TestPromise::CreateAndResolve(42, __func__));
+ // Ensure that more than one rejection doesn't cause a crash (bug #1207312)
+ promises.AppendElement(TestPromise::CreateAndReject(52.0, __func__));
+
+ TestPromise::All(queue, promises)
+ ->Then(
+ queue, __func__, []() { EXPECT_TRUE(false); },
+ [queue](float aRejectValue) -> void {
+ EXPECT_EQ(aRejectValue, 32.0);
+ queue->BeginShutdown();
+ });
+ });
+}
+
+TEST(MozPromise, PromiseAllRejectAsync)
+{
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+ RunOnTaskQueue(queue, [queue]() -> void {
+ nsTArray<RefPtr<TestPromise>> promises;
+ promises.AppendElement(InvokeAsync(queue, __func__, []() {
+ return TestPromise::CreateAndResolve(22, __func__);
+ }));
+ promises.AppendElement(InvokeAsync(queue, __func__, []() {
+ return TestPromise::CreateAndReject(32.0, __func__);
+ }));
+ promises.AppendElement(InvokeAsync(queue, __func__, []() {
+ return TestPromise::CreateAndResolve(42, __func__);
+ }));
+ // Ensure that more than one rejection doesn't cause a crash (bug #1207312)
+ promises.AppendElement(InvokeAsync(queue, __func__, []() {
+ return TestPromise::CreateAndReject(52.0, __func__);
+ }));
+
+ TestPromise::All(queue, promises)
+ ->Then(
+ queue, __func__, []() { EXPECT_TRUE(false); },
+ [queue](float aRejectValue) -> void {
+ EXPECT_EQ(aRejectValue, 32.0);
+ queue->BeginShutdown();
+ });
+ });
+}
+
+TEST(MozPromise, PromiseAllSettled)
+{
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+ RunOnTaskQueue(queue, [queue]() -> void {
+ nsTArray<RefPtr<TestPromise>> promises;
+ promises.AppendElement(TestPromise::CreateAndResolve(22, __func__));
+ promises.AppendElement(TestPromise::CreateAndReject(32.0, __func__));
+ promises.AppendElement(TestPromise::CreateAndResolve(42, __func__));
+ promises.AppendElement(TestPromise::CreateAndReject(52.0, __func__));
+
+ TestPromise::AllSettled(queue, promises)
+ ->Then(
+ queue, __func__,
+ [queue](const TestPromise::AllSettledPromiseType::ResolveValueType&
+ aResolveValues) -> void {
+ EXPECT_EQ(aResolveValues.Length(), 4UL);
+ EXPECT_TRUE(aResolveValues[0].IsResolve());
+ EXPECT_EQ(aResolveValues[0].ResolveValue(), 22);
+ EXPECT_FALSE(aResolveValues[1].IsResolve());
+ EXPECT_EQ(aResolveValues[1].RejectValue(), 32.0);
+ EXPECT_TRUE(aResolveValues[2].IsResolve());
+ EXPECT_EQ(aResolveValues[2].ResolveValue(), 42);
+ EXPECT_FALSE(aResolveValues[3].IsResolve());
+ EXPECT_EQ(aResolveValues[3].RejectValue(), 52.0);
+ queue->BeginShutdown();
+ },
+ []() { EXPECT_TRUE(false); });
+ });
+}
+
+TEST(MozPromise, PromiseAllSettledAsync)
+{
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+
+ RunOnTaskQueue(queue, [queue]() -> void {
+ nsTArray<RefPtr<TestPromise>> promises;
+ promises.AppendElement(InvokeAsync(queue, __func__, []() {
+ return TestPromise::CreateAndResolve(22, __func__);
+ }));
+ promises.AppendElement(InvokeAsync(queue, __func__, []() {
+ return TestPromise::CreateAndReject(32.0, __func__);
+ }));
+ promises.AppendElement(InvokeAsync(queue, __func__, []() {
+ return TestPromise::CreateAndResolve(42, __func__);
+ }));
+ promises.AppendElement(InvokeAsync(queue, __func__, []() {
+ return TestPromise::CreateAndReject(52.0, __func__);
+ }));
+
+ TestPromise::AllSettled(queue, promises)
+ ->Then(
+ queue, __func__,
+ [queue](const TestPromise::AllSettledPromiseType::ResolveValueType&
+ aResolveValues) -> void {
+ EXPECT_EQ(aResolveValues.Length(), 4UL);
+ EXPECT_TRUE(aResolveValues[0].IsResolve());
+ EXPECT_EQ(aResolveValues[0].ResolveValue(), 22);
+ EXPECT_FALSE(aResolveValues[1].IsResolve());
+ EXPECT_EQ(aResolveValues[1].RejectValue(), 32.0);
+ EXPECT_TRUE(aResolveValues[2].IsResolve());
+ EXPECT_EQ(aResolveValues[2].ResolveValue(), 42);
+ EXPECT_FALSE(aResolveValues[3].IsResolve());
+ EXPECT_EQ(aResolveValues[3].RejectValue(), 52.0);
+ queue->BeginShutdown();
+ },
+ []() { EXPECT_TRUE(false); });
+ });
+}
+
+// Test we don't hit the assertions in MozPromise when exercising promise
+// chaining upon task queue shutdown.
+TEST(MozPromise, Chaining)
+{
+ // We declare this variable before |atq| to ensure
+ // the destructor is run after |holder.Disconnect()|.
+ MozPromiseRequestHolder<TestPromise> holder;
+
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+
+ RunOnTaskQueue(queue, [queue, &holder]() {
+ auto p = TestPromise::CreateAndResolve(42, __func__);
+ const size_t kIterations = 100;
+ for (size_t i = 0; i < kIterations; ++i) {
+ p = p->Then(
+ queue, __func__,
+ [](int aVal) {
+ EXPECT_EQ(aVal, 42);
+ return TestPromise::CreateAndResolve(aVal, __func__);
+ },
+ [](double aVal) {
+ return TestPromise::CreateAndReject(aVal, __func__);
+ });
+
+ if (i == kIterations / 2) {
+ p->Then(
+ queue, __func__,
+ [queue, &holder]() {
+ holder.Disconnect();
+ queue->BeginShutdown();
+ },
+ DO_FAIL);
+ }
+ }
+ // We will hit the assertion if we don't disconnect the leaf Request
+ // in the promise chain.
+ p->Then(
+ queue, __func__, []() {}, []() {})
+ ->Track(holder);
+ });
+}
+
+TEST(MozPromise, ResolveOrRejectValue)
+{
+ using MyPromise = MozPromise<UniquePtr<int>, bool, false>;
+ using RRValue = MyPromise::ResolveOrRejectValue;
+
+ RRValue val;
+ EXPECT_TRUE(val.IsNothing());
+ EXPECT_FALSE(val.IsResolve());
+ EXPECT_FALSE(val.IsReject());
+
+ val.SetResolve(MakeUnique<int>(87));
+ EXPECT_FALSE(val.IsNothing());
+ EXPECT_TRUE(val.IsResolve());
+ EXPECT_FALSE(val.IsReject());
+ EXPECT_EQ(87, *val.ResolveValue());
+
+ // IsResolve() should remain true after std::move().
+ UniquePtr<int> i = std::move(val.ResolveValue());
+ EXPECT_EQ(87, *i);
+ EXPECT_TRUE(val.IsResolve());
+ EXPECT_EQ(val.ResolveValue().get(), nullptr);
+}
+
+TEST(MozPromise, MoveOnlyType)
+{
+ using MyPromise = MozPromise<UniquePtr<int>, bool, true>;
+ using RRValue = MyPromise::ResolveOrRejectValue;
+
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+
+ MyPromise::CreateAndResolve(MakeUnique<int>(87), __func__)
+ ->Then(
+ queue, __func__, [](UniquePtr<int> aVal) { EXPECT_EQ(87, *aVal); },
+ []() { EXPECT_TRUE(false); });
+
+ MyPromise::CreateAndResolve(MakeUnique<int>(87), __func__)
+ ->Then(queue, __func__, [queue](RRValue&& aVal) {
+ EXPECT_FALSE(aVal.IsNothing());
+ EXPECT_TRUE(aVal.IsResolve());
+ EXPECT_FALSE(aVal.IsReject());
+ EXPECT_EQ(87, *aVal.ResolveValue());
+
+ // std::move() shouldn't change the resolve/reject state of aVal.
+ RRValue val = std::move(aVal);
+ EXPECT_TRUE(aVal.IsResolve());
+ EXPECT_EQ(nullptr, aVal.ResolveValue().get());
+ EXPECT_EQ(87, *val.ResolveValue());
+
+ queue->BeginShutdown();
+ });
+}
+
+TEST(MozPromise, HeterogeneousChaining)
+{
+ using Promise1 = MozPromise<UniquePtr<char>, bool, true>;
+ using Promise2 = MozPromise<UniquePtr<int>, bool, true>;
+ using RRValue1 = Promise1::ResolveOrRejectValue;
+ using RRValue2 = Promise2::ResolveOrRejectValue;
+
+ MozPromiseRequestHolder<Promise2> holder;
+
+ AutoTaskQueue atq;
+ RefPtr<TaskQueue> queue = atq.Queue();
+
+ RunOnTaskQueue(queue, [queue, &holder]() {
+ Promise1::CreateAndResolve(MakeUnique<char>(0), __func__)
+ ->Then(queue, __func__,
+ [&holder]() {
+ holder.Disconnect();
+ return Promise2::CreateAndResolve(MakeUnique<int>(0),
+ __func__);
+ })
+ ->Then(queue, __func__,
+ []() {
+ // Shouldn't be called for we've disconnected the request.
+ EXPECT_FALSE(true);
+ })
+ ->Track(holder);
+ });
+
+ Promise1::CreateAndResolve(MakeUnique<char>(87), __func__)
+ ->Then(
+ queue, __func__,
+ [](UniquePtr<char> aVal) {
+ EXPECT_EQ(87, *aVal);
+ return Promise2::CreateAndResolve(MakeUnique<int>(94), __func__);
+ },
+ []() {
+ return Promise2::CreateAndResolve(MakeUnique<int>(95), __func__);
+ })
+ ->Then(
+ queue, __func__, [](UniquePtr<int> aVal) { EXPECT_EQ(94, *aVal); },
+ []() { EXPECT_FALSE(true); });
+
+ Promise1::CreateAndResolve(MakeUnique<char>(87), __func__)
+ ->Then(queue, __func__,
+ [](RRValue1&& aVal) {
+ EXPECT_EQ(87, *aVal.ResolveValue());
+ return Promise2::CreateAndResolve(MakeUnique<int>(94), __func__);
+ })
+ ->Then(queue, __func__, [queue](RRValue2&& aVal) {
+ EXPECT_EQ(94, *aVal.ResolveValue());
+ queue->BeginShutdown();
+ });
+}
+
+TEST(MozPromise, XPCOMEventTarget)
+{
+ TestPromise::CreateAndResolve(42, __func__)
+ ->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [](int aResolveValue) -> void { EXPECT_EQ(aResolveValue, 42); },
+ DO_FAIL);
+
+ // Spin the event loop.
+ NS_ProcessPendingEvents(nullptr);
+}
+
+TEST(MozPromise, MessageLoopEventTarget)
+{
+ TestPromise::CreateAndResolve(42, __func__)
+ ->Then(
+ MessageLoop::current()->SerialEventTarget(), __func__,
+ [](int aResolveValue) -> void { EXPECT_EQ(aResolveValue, 42); },
+ DO_FAIL);
+
+ // Spin the event loop.
+ NS_ProcessPendingEvents(nullptr);
+}
+
+TEST(MozPromise, ChainTo)
+{
+ RefPtr<TestPromise> promise1 = TestPromise::CreateAndResolve(42, __func__);
+ RefPtr<TestPromise::Private> promise2 = new TestPromise::Private(__func__);
+ promise2->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [&](int aResolveValue) -> void { EXPECT_EQ(aResolveValue, 42); },
+ DO_FAIL);
+
+ promise1->ChainTo(promise2.forget(), __func__);
+
+ // Spin the event loop.
+ NS_ProcessPendingEvents(nullptr);
+}
+
+TEST(MozPromise, SynchronousTaskDispatch1)
+{
+ bool value = false;
+ RefPtr<TestPromiseExcl::Private> promise =
+ new TestPromiseExcl::Private(__func__);
+ promise->UseSynchronousTaskDispatch(__func__);
+ promise->Resolve(42, __func__);
+ EXPECT_EQ(value, false);
+ promise->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [&](int aResolveValue) -> void {
+ EXPECT_EQ(aResolveValue, 42);
+ value = true;
+ },
+ DO_FAIL);
+ EXPECT_EQ(value, true);
+}
+
+TEST(MozPromise, SynchronousTaskDispatch2)
+{
+ bool value = false;
+ RefPtr<TestPromiseExcl::Private> promise =
+ new TestPromiseExcl::Private(__func__);
+ promise->UseSynchronousTaskDispatch(__func__);
+ promise->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [&](int aResolveValue) -> void {
+ EXPECT_EQ(aResolveValue, 42);
+ value = true;
+ },
+ DO_FAIL);
+ EXPECT_EQ(value, false);
+ promise->Resolve(42, __func__);
+ EXPECT_EQ(value, true);
+}
+
+TEST(MozPromise, DirectTaskDispatch)
+{
+ bool value1 = false;
+ bool value2 = false;
+
+ // For direct task dispatch to be working, we must be within a
+ // nested event loop. So the test itself must be dispatched within
+ // a task.
+ GetCurrentSerialEventTarget()->Dispatch(NS_NewRunnableFunction("test", [&]() {
+ GetCurrentSerialEventTarget()->Dispatch(
+ NS_NewRunnableFunction("test", [&]() {
+ EXPECT_EQ(value1, true);
+ value2 = true;
+ }));
+
+ RefPtr<TestPromise::Private> promise = new TestPromise::Private(__func__);
+ promise->UseDirectTaskDispatch(__func__);
+ promise->Resolve(42, __func__);
+ EXPECT_EQ(value1, false);
+ promise->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [&](int aResolveValue) -> void {
+ EXPECT_EQ(aResolveValue, 42);
+ EXPECT_EQ(value2, false);
+ value1 = true;
+ },
+ DO_FAIL);
+ EXPECT_EQ(value1, false);
+ }));
+
+ // Spin the event loop.
+ NS_ProcessPendingEvents(nullptr);
+}
+
+TEST(MozPromise, ChainedDirectTaskDispatch)
+{
+ bool value1 = false;
+ bool value2 = false;
+
+ // For direct task dispatch to be working, we must be within a
+ // nested event loop. So the test itself must be dispatched within
+ // a task.
+ GetCurrentSerialEventTarget()->Dispatch(NS_NewRunnableFunction("test", [&]() {
+ GetCurrentSerialEventTarget()->Dispatch(
+ NS_NewRunnableFunction("test", [&]() {
+ EXPECT_EQ(value1, true);
+ value2 = true;
+ }));
+
+ RefPtr<TestPromise::Private> promise1 = new TestPromise::Private(__func__);
+ promise1->UseDirectTaskDispatch(__func__);
+ promise1->Resolve(42, __func__);
+ EXPECT_EQ(value1, false);
+ promise1
+ ->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [&](int aResolveValue) -> RefPtr<TestPromise> {
+ EXPECT_EQ(aResolveValue, 42);
+ EXPECT_EQ(value2, false);
+ RefPtr<TestPromise::Private> promise2 =
+ new TestPromise::Private(__func__);
+ promise2->UseDirectTaskDispatch(__func__);
+ promise2->Resolve(43, __func__);
+ return promise2;
+ },
+ DO_FAIL)
+ ->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [&](int aResolveValue) -> void {
+ EXPECT_EQ(aResolveValue, 43);
+ EXPECT_EQ(value2, false);
+ value1 = true;
+ },
+ DO_FAIL);
+ EXPECT_EQ(value1, false);
+ }));
+
+ // Spin the event loop.
+ NS_ProcessPendingEvents(nullptr);
+}
+
+TEST(MozPromise, ChainToDirectTaskDispatch)
+{
+ bool value1 = false;
+ bool value2 = false;
+
+ // For direct task dispatch to be working, we must be within a
+ // nested event loop. So the test itself must be dispatched within
+ // a task.
+ GetCurrentSerialEventTarget()->Dispatch(NS_NewRunnableFunction("test", [&]() {
+ GetCurrentSerialEventTarget()->Dispatch(
+ NS_NewRunnableFunction("test", [&]() {
+ EXPECT_EQ(value1, true);
+ value2 = true;
+ }));
+
+ RefPtr<TestPromise::Private> promise1 = new TestPromise::Private(__func__);
+ promise1->UseDirectTaskDispatch(__func__);
+
+ RefPtr<TestPromise::Private> promise2 = new TestPromise::Private(__func__);
+ promise2->Then(
+ GetCurrentSerialEventTarget(), __func__,
+ [&](int aResolveValue) -> void {
+ EXPECT_EQ(aResolveValue, 42);
+ EXPECT_EQ(value2, false);
+ value1 = true;
+ },
+ DO_FAIL);
+
+ promise1->ChainTo(promise2.forget(), __func__);
+ EXPECT_EQ(value1, false);
+ promise1->Resolve(42, __func__);
+ }));
+
+ // Spin the event loop.
+ NS_ProcessPendingEvents(nullptr);
+}
+
+#undef DO_FAIL