src/tests/unittests/wire/WireAdapterTests.cpp - dawn - Git at Google

 // Copyright 2021 The Dawn Authors
 //
 // 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
 //
 //     http://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 "tests/MockCallback.h"
 #include "tests/unittests/wire/WireTest.h"

 #include "dawn_wire/WireClient.h"
 #include "dawn_wire/WireServer.h"

 #include <webgpu/webgpu_cpp.h>
 #include <unordered_set>
 #include <vector>

 namespace {

     using namespace testing;
     using namespace dawn_wire;

     class WireAdapterTests : public WireTest {
       protected:
         // Bootstrap the tests and create a fake adapter.
         void SetUp() override {
             WireTest::SetUp();

             auto reservation = GetWireClient()->ReserveInstance();
             instance = wgpu::Instance::Acquire(reservation.instance);

             WGPUInstance apiInstance = api.GetNewInstance();
             EXPECT_CALL(api, InstanceReference(apiInstance));
             EXPECT_TRUE(GetWireServer()->InjectInstance(apiInstance, reservation.id,
                                                         reservation.generation));

             wgpu::RequestAdapterOptions options = {};
             MockCallback<WGPURequestAdapterCallback> cb;
             auto* userdata = cb.MakeUserdata(this);
             instance.RequestAdapter(&options, cb.Callback(), userdata);

             // Expect the server to receive the message. Then, mock a fake reply.
             apiAdapter = api.GetNewAdapter();
             EXPECT_CALL(api, OnInstanceRequestAdapter(apiInstance, NotNull(), NotNull(), NotNull()))
                 .WillOnce(InvokeWithoutArgs([&]() {
                     EXPECT_CALL(api, AdapterGetProperties(apiAdapter, NotNull()))
                         .WillOnce(WithArg<1>(Invoke([&](WGPUAdapterProperties* properties) {
                             *properties = {};
                             properties->name = "";
                             properties->driverDescription = "";
                         })));

                     EXPECT_CALL(api, AdapterGetLimits(apiAdapter, NotNull()))
                         .WillOnce(WithArg<1>(Invoke([&](WGPUSupportedLimits* limits) {
                             *limits = {};
                             return true;
                         })));

                     EXPECT_CALL(api, AdapterEnumerateFeatures(apiAdapter, nullptr))
                         .WillOnce(Return(0))
                         .WillOnce(Return(0));
                     api.CallInstanceRequestAdapterCallback(
                         apiInstance, WGPURequestAdapterStatus_Success, apiAdapter, nullptr);
                 }));
             FlushClient();

             // Expect the callback in the client.
             WGPUAdapter cAdapter;
             EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Success, NotNull(), nullptr, this))
                 .WillOnce(SaveArg<1>(&cAdapter));
             FlushServer();

             EXPECT_NE(cAdapter, nullptr);
             adapter = wgpu::Adapter::Acquire(cAdapter);
         }

         void TearDown() override {
             adapter = nullptr;
             instance = nullptr;
             WireTest::TearDown();
         }

         WGPUAdapter apiAdapter;
         wgpu::Instance instance;
         wgpu::Adapter adapter;
     };

     // Test that the DeviceDescriptor is passed from the client to the server.
     TEST_F(WireAdapterTests, RequestDevicePassesDescriptor) {
         MockCallback<WGPURequestDeviceCallback> cb;
         auto* userdata = cb.MakeUserdata(this);

         // Test an empty descriptor
         {
             wgpu::DeviceDescriptor desc = {};
             adapter.RequestDevice(&desc, cb.Callback(), userdata);

             EXPECT_CALL(api, OnAdapterRequestDevice(apiAdapter, NotNull(), NotNull(), NotNull()))
                 .WillOnce(WithArg<1>(Invoke([](const WGPUDeviceDescriptor* apiDesc) {
                     EXPECT_EQ(apiDesc->label, nullptr);
                     EXPECT_EQ(apiDesc->requiredFeaturesCount, 0u);
                     EXPECT_EQ(apiDesc->requiredLimits, nullptr);
                 })));
             FlushClient();
         }

         // Test a non-empty descriptor
         {
             wgpu::RequiredLimits limits = {};
             limits.limits.maxStorageTexturesPerShaderStage = 5;

             std::vector<wgpu::FeatureName> features = {wgpu::FeatureName::TextureCompressionETC2,
                                                        wgpu::FeatureName::TextureCompressionASTC};

             wgpu::DeviceDescriptor desc = {};
             desc.label = "hello device";
             desc.requiredLimits = &limits;
             desc.requiredFeaturesCount = features.size();
             desc.requiredFeatures = features.data();

             adapter.RequestDevice(&desc, cb.Callback(), userdata);

             EXPECT_CALL(api, OnAdapterRequestDevice(apiAdapter, NotNull(), NotNull(), NotNull()))
                 .WillOnce(WithArg<1>(Invoke([&](const WGPUDeviceDescriptor* apiDesc) {
                     EXPECT_STREQ(apiDesc->label, desc.label);

                     ASSERT_EQ(apiDesc->requiredFeaturesCount, features.size());
                     for (uint32_t i = 0; i < features.size(); ++i) {
                         EXPECT_EQ(apiDesc->requiredFeatures[i],
                                   static_cast<WGPUFeatureName>(features[i]));
                     }

                     ASSERT_NE(apiDesc->requiredLimits, nullptr);
                     EXPECT_EQ(apiDesc->requiredLimits->nextInChain, nullptr);
                     EXPECT_EQ(apiDesc->requiredLimits->limits.maxStorageTexturesPerShaderStage,
                               limits.limits.maxStorageTexturesPerShaderStage);
                 })));
             FlushClient();
         }

         // Delete the adapter now, or it'll call the mock callback after it's deleted.
         adapter = nullptr;
     }

     // Test that RequestDevice forwards the device information to the client.
     TEST_F(WireAdapterTests, RequestDeviceSuccess) {
         MockCallback<WGPURequestDeviceCallback> cb;
         auto* userdata = cb.MakeUserdata(this);

         wgpu::SupportedLimits fakeLimits = {};
         fakeLimits.limits.maxTextureDimension1D = 433;
         fakeLimits.limits.maxVertexAttributes = 1243;

         std::initializer_list<wgpu::FeatureName> fakeFeatures = {
             wgpu::FeatureName::Depth32FloatStencil8,
             wgpu::FeatureName::TextureCompressionBC,
         };

         wgpu::DeviceDescriptor desc = {};
         adapter.RequestDevice(&desc, cb.Callback(), userdata);

         // Expect the server to receive the message. Then, mock a fake reply.
         WGPUDevice apiDevice = api.GetNewDevice();
         EXPECT_CALL(api, OnAdapterRequestDevice(apiAdapter, NotNull(), NotNull(), NotNull()))
             .WillOnce(InvokeWithoutArgs([&]() {
                 // Set on device creation to forward callbacks to the client.
                 EXPECT_CALL(api,
                             OnDeviceSetUncapturedErrorCallback(apiDevice, NotNull(), NotNull()))
                     .Times(1);
                 EXPECT_CALL(api, OnDeviceSetLoggingCallback(apiDevice, NotNull(), NotNull()))
                     .Times(1);
                 EXPECT_CALL(api, OnDeviceSetDeviceLostCallback(apiDevice, NotNull(), NotNull()))
                     .Times(1);

                 EXPECT_CALL(api, DeviceGetLimits(apiDevice, NotNull()))
                     .WillOnce(WithArg<1>(Invoke([&](WGPUSupportedLimits* limits) {
                         *reinterpret_cast<wgpu::SupportedLimits*>(limits) = fakeLimits;
                         return true;
                     })));

                 EXPECT_CALL(api, DeviceEnumerateFeatures(apiDevice, nullptr))
                     .WillOnce(Return(fakeFeatures.size()));

                 EXPECT_CALL(api, DeviceEnumerateFeatures(apiDevice, NotNull()))
                     .WillOnce(WithArg<1>(Invoke([&](WGPUFeatureName* features) {
                         for (wgpu::FeatureName feature : fakeFeatures) {
                             *(features++) = static_cast<WGPUFeatureName>(feature);
                         }
                         return fakeFeatures.size();
                     })));

                 api.CallAdapterRequestDeviceCallback(apiAdapter, WGPURequestDeviceStatus_Success,
                                                      apiDevice, nullptr);
             }));
         FlushClient();

         // Expect the callback in the client and all the device information to match.
         EXPECT_CALL(cb, Call(WGPURequestDeviceStatus_Success, NotNull(), nullptr, this))
             .WillOnce(WithArg<1>(Invoke([&](WGPUDevice cDevice) {
                 wgpu::Device device = wgpu::Device::Acquire(cDevice);

                 wgpu::SupportedLimits limits;
                 EXPECT_TRUE(device.GetLimits(&limits));
                 EXPECT_EQ(limits.limits.maxTextureDimension1D,
                           fakeLimits.limits.maxTextureDimension1D);
                 EXPECT_EQ(limits.limits.maxVertexAttributes, fakeLimits.limits.maxVertexAttributes);

                 std::vector<wgpu::FeatureName> features;
                 features.resize(device.EnumerateFeatures(nullptr));
                 ASSERT_EQ(features.size(), fakeFeatures.size());
                 EXPECT_EQ(device.EnumerateFeatures(&features[0]), features.size());

                 std::unordered_set<wgpu::FeatureName> featureSet(fakeFeatures);
                 for (wgpu::FeatureName feature : features) {
                     EXPECT_EQ(featureSet.erase(feature), 1u);
                 }
             })));
         FlushServer();

         // Cleared when the device is destroyed.
         EXPECT_CALL(api, OnDeviceSetUncapturedErrorCallback(apiDevice, nullptr, nullptr)).Times(1);
         EXPECT_CALL(api, OnDeviceSetLoggingCallback(apiDevice, nullptr, nullptr)).Times(1);
         EXPECT_CALL(api, OnDeviceSetDeviceLostCallback(apiDevice, nullptr, nullptr)).Times(1);
     }

     // Test that features requested that the implementation supports, but not the
     // wire reject the callback.
     TEST_F(WireAdapterTests, RequestFeatureUnsupportedByWire) {
         MockCallback<WGPURequestDeviceCallback> cb;
         auto* userdata = cb.MakeUserdata(this);

         std::initializer_list<wgpu::FeatureName> fakeFeatures = {
             // Some value that is not a valid feature
             static_cast<wgpu::FeatureName>(-2),
             wgpu::FeatureName::TextureCompressionASTC,
         };

         wgpu::DeviceDescriptor desc = {};
         adapter.RequestDevice(&desc, cb.Callback(), userdata);

         // Expect the server to receive the message. Then, mock a fake reply.
         // The reply contains features that the device implementation supports, but the
         // wire does not.
         WGPUDevice apiDevice = api.GetNewDevice();
         EXPECT_CALL(api, OnAdapterRequestDevice(apiAdapter, NotNull(), NotNull(), NotNull()))
             .WillOnce(InvokeWithoutArgs([&]() {
                 EXPECT_CALL(api, DeviceEnumerateFeatures(apiDevice, nullptr))
                     .WillOnce(Return(fakeFeatures.size()));

                 EXPECT_CALL(api, DeviceEnumerateFeatures(apiDevice, NotNull()))
                     .WillOnce(WithArg<1>(Invoke([&](WGPUFeatureName* features) {
                         for (wgpu::FeatureName feature : fakeFeatures) {
                             *(features++) = static_cast<WGPUFeatureName>(feature);
                         }
                         return fakeFeatures.size();
                     })));

                 // The device was actually created, but the wire didn't support its features.
                 // Expect it to be released.
                 EXPECT_CALL(api, DeviceRelease(apiDevice));

                 // Fake successful creation. The client still receives a failure due to
                 // unsupported features.
                 api.CallAdapterRequestDeviceCallback(apiAdapter, WGPURequestDeviceStatus_Success,
                                                      apiDevice, nullptr);
             }));
         FlushClient();

         // Expect an error callback since the feature is not supported.
         EXPECT_CALL(cb, Call(WGPURequestDeviceStatus_Error, nullptr, NotNull(), this)).Times(1);
         FlushServer();
     }

     // Test that RequestDevice errors forward to the client.
     TEST_F(WireAdapterTests, RequestDeviceError) {
         MockCallback<WGPURequestDeviceCallback> cb;
         auto* userdata = cb.MakeUserdata(this);

         wgpu::DeviceDescriptor desc = {};
         adapter.RequestDevice(&desc, cb.Callback(), userdata);

         // Expect the server to receive the message. Then, mock an error.
         EXPECT_CALL(api, OnAdapterRequestDevice(apiAdapter, NotNull(), NotNull(), NotNull()))
             .WillOnce(InvokeWithoutArgs([&]() {
                 api.CallAdapterRequestDeviceCallback(apiAdapter, WGPURequestDeviceStatus_Error,
                                                      nullptr, "Request device failed");
             }));
         FlushClient();

         // Expect the callback in the client.
         EXPECT_CALL(
             cb, Call(WGPURequestDeviceStatus_Error, nullptr, StrEq("Request device failed"), this))
             .Times(1);
         FlushServer();
     }

     // Test that RequestDevice receives unknown status if the adapter is deleted
     // before the callback happens.
     TEST_F(WireAdapterTests, RequestDeviceAdapterDestroyedBeforeCallback) {
         MockCallback<WGPURequestDeviceCallback> cb;
         auto* userdata = cb.MakeUserdata(this);

         wgpu::DeviceDescriptor desc = {};
         adapter.RequestDevice(&desc, cb.Callback(), userdata);

         EXPECT_CALL(cb, Call(WGPURequestDeviceStatus_Unknown, nullptr, NotNull(), this)).Times(1);
         adapter = nullptr;
     }

     // Test that RequestDevice receives unknown status if the wire is disconnected
     // before the callback happens.
     TEST_F(WireAdapterTests, RequestDeviceWireDisconnectedBeforeCallback) {
         MockCallback<WGPURequestDeviceCallback> cb;
         auto* userdata = cb.MakeUserdata(this);

         wgpu::DeviceDescriptor desc = {};
         adapter.RequestDevice(&desc, cb.Callback(), userdata);

         EXPECT_CALL(cb, Call(WGPURequestDeviceStatus_Unknown, nullptr, NotNull(), this)).Times(1);
         GetWireClient()->Disconnect();
     }

 }  // anonymous namespace
	// Copyright 2021 The Dawn Authors
	//
	// 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
	//
	// http://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 "tests/MockCallback.h"
	#include "tests/unittests/wire/WireTest.h"

	#include "dawn_wire/WireClient.h"
	#include "dawn_wire/WireServer.h"

	#include <webgpu/webgpu_cpp.h>
	#include <unordered_set>
	#include <vector>

	namespace {

	using namespace testing;
	using namespace dawn_wire;

	class WireAdapterTests : public WireTest {
	protected:
	// Bootstrap the tests and create a fake adapter.
	void SetUp() override {
	WireTest::SetUp();

	auto reservation = GetWireClient()->ReserveInstance();
	instance = wgpu::Instance::Acquire(reservation.instance);

	WGPUInstance apiInstance = api.GetNewInstance();
	EXPECT_CALL(api, InstanceReference(apiInstance));
	EXPECT_TRUE(GetWireServer()->InjectInstance(apiInstance, reservation.id,
	reservation.generation));

	wgpu::RequestAdapterOptions options = {};
	MockCallback<WGPURequestAdapterCallback> cb;
	auto* userdata = cb.MakeUserdata(this);
	instance.RequestAdapter(&options, cb.Callback(), userdata);

	// Expect the server to receive the message. Then, mock a fake reply.
	apiAdapter = api.GetNewAdapter();
	EXPECT_CALL(api, OnInstanceRequestAdapter(apiInstance, NotNull(), NotNull(), NotNull()))
	.WillOnce(InvokeWithoutArgs([&]() {
	EXPECT_CALL(api, AdapterGetProperties(apiAdapter, NotNull()))
	.WillOnce(WithArg<1>(Invoke([&](WGPUAdapterProperties* properties) {
	*properties = {};
	properties->name = "";
	properties->driverDescription = "";
	})));

	EXPECT_CALL(api, AdapterGetLimits(apiAdapter, NotNull()))
	.WillOnce(WithArg<1>(Invoke([&](WGPUSupportedLimits* limits) {
	*limits = {};
	return true;
	})));

	EXPECT_CALL(api, AdapterEnumerateFeatures(apiAdapter, nullptr))
	.WillOnce(Return(0))
	.WillOnce(Return(0));
	api.CallInstanceRequestAdapterCallback(
	apiInstance, WGPURequestAdapterStatus_Success, apiAdapter, nullptr);
	}));
	FlushClient();

	// Expect the callback in the client.
	WGPUAdapter cAdapter;
	EXPECT_CALL(cb, Call(WGPURequestAdapterStatus_Success, NotNull(), nullptr, this))
	.WillOnce(SaveArg<1>(&cAdapter));
	FlushServer();

	EXPECT_NE(cAdapter, nullptr);
	adapter = wgpu::Adapter::Acquire(cAdapter);
	}

	void TearDown() override {
	adapter = nullptr;
	instance = nullptr;
	WireTest::TearDown();
	}

	WGPUAdapter apiAdapter;
	wgpu::Instance instance;
	wgpu::Adapter adapter;
	};

	// Test that the DeviceDescriptor is passed from the client to the server.
	TEST_F(WireAdapterTests, RequestDevicePassesDescriptor) {
	MockCallback<WGPURequestDeviceCallback> cb;
	auto* userdata = cb.MakeUserdata(this);

	// Test an empty descriptor
	{
	wgpu::DeviceDescriptor desc = {};
	adapter.RequestDevice(&desc, cb.Callback(), userdata);

	EXPECT_CALL(api, OnAdapterRequestDevice(apiAdapter, NotNull(), NotNull(), NotNull()))
	.WillOnce(WithArg<1>(Invoke([](const WGPUDeviceDescriptor* apiDesc) {
	EXPECT_EQ(apiDesc->label, nullptr);
	EXPECT_EQ(apiDesc->requiredFeaturesCount, 0u);
	EXPECT_EQ(apiDesc->requiredLimits, nullptr);
	})));
	FlushClient();
	}

	// Test a non-empty descriptor
	{
	wgpu::RequiredLimits limits = {};
	limits.limits.maxStorageTexturesPerShaderStage = 5;

	std::vector<wgpu::FeatureName> features = {wgpu::FeatureName::TextureCompressionETC2,
	wgpu::FeatureName::TextureCompressionASTC};

	wgpu::DeviceDescriptor desc = {};
	desc.label = "hello device";
	desc.requiredLimits = &limits;
	desc.requiredFeaturesCount = features.size();
	desc.requiredFeatures = features.data();

	adapter.RequestDevice(&desc, cb.Callback(), userdata);

	EXPECT_CALL(api, OnAdapterRequestDevice(apiAdapter, NotNull(), NotNull(), NotNull()))
	.WillOnce(WithArg<1>(Invoke([&](const WGPUDeviceDescriptor* apiDesc) {
	EXPECT_STREQ(apiDesc->label, desc.label);

	ASSERT_EQ(apiDesc->requiredFeaturesCount, features.size());
	for (uint32_t i = 0; i < features.size(); ++i) {
	EXPECT_EQ(apiDesc->requiredFeatures[i],
	static_cast<WGPUFeatureName>(features[i]));
	}

	ASSERT_NE(apiDesc->requiredLimits, nullptr);
	EXPECT_EQ(apiDesc->requiredLimits->nextInChain, nullptr);
	EXPECT_EQ(apiDesc->requiredLimits->limits.maxStorageTexturesPerShaderStage,
	limits.limits.maxStorageTexturesPerShaderStage);
	})));
	FlushClient();
	}

	// Delete the adapter now, or it'll call the mock callback after it's deleted.
	adapter = nullptr;
	}

	// Test that RequestDevice forwards the device information to the client.
	TEST_F(WireAdapterTests, RequestDeviceSuccess) {
	MockCallback<WGPURequestDeviceCallback> cb;
	auto* userdata = cb.MakeUserdata(this);

	wgpu::SupportedLimits fakeLimits = {};
	fakeLimits.limits.maxTextureDimension1D = 433;
	fakeLimits.limits.maxVertexAttributes = 1243;

	std::initializer_list<wgpu::FeatureName> fakeFeatures = {
	wgpu::FeatureName::Depth32FloatStencil8,
	wgpu::FeatureName::TextureCompressionBC,
	};

	wgpu::DeviceDescriptor desc = {};
	adapter.RequestDevice(&desc, cb.Callback(), userdata);

	// Expect the server to receive the message. Then, mock a fake reply.
	WGPUDevice apiDevice = api.GetNewDevice();
	EXPECT_CALL(api, OnAdapterRequestDevice(apiAdapter, NotNull(), NotNull(), NotNull()))
	.WillOnce(InvokeWithoutArgs([&]() {
	// Set on device creation to forward callbacks to the client.
	EXPECT_CALL(api,
	OnDeviceSetUncapturedErrorCallback(apiDevice, NotNull(), NotNull()))
	.Times(1);
	EXPECT_CALL(api, OnDeviceSetLoggingCallback(apiDevice, NotNull(), NotNull()))
	.Times(1);
	EXPECT_CALL(api, OnDeviceSetDeviceLostCallback(apiDevice, NotNull(), NotNull()))
	.Times(1);

	EXPECT_CALL(api, DeviceGetLimits(apiDevice, NotNull()))
	.WillOnce(WithArg<1>(Invoke([&](WGPUSupportedLimits* limits) {
	reinterpret_cast<wgpu::SupportedLimits>(limits) = fakeLimits;
	return true;
	})));

	EXPECT_CALL(api, DeviceEnumerateFeatures(apiDevice, nullptr))
	.WillOnce(Return(fakeFeatures.size()));

	EXPECT_CALL(api, DeviceEnumerateFeatures(apiDevice, NotNull()))
	.WillOnce(WithArg<1>(Invoke([&](WGPUFeatureName* features) {
	for (wgpu::FeatureName feature : fakeFeatures) {
	*(features++) = static_cast<WGPUFeatureName>(feature);
	}
	return fakeFeatures.size();
	})));

	api.CallAdapterRequestDeviceCallback(apiAdapter, WGPURequestDeviceStatus_Success,
	apiDevice, nullptr);
	}));
	FlushClient();

	// Expect the callback in the client and all the device information to match.
	EXPECT_CALL(cb, Call(WGPURequestDeviceStatus_Success, NotNull(), nullptr, this))
	.WillOnce(WithArg<1>(Invoke([&](WGPUDevice cDevice) {
	wgpu::Device device = wgpu::Device::Acquire(cDevice);

	wgpu::SupportedLimits limits;
	EXPECT_TRUE(device.GetLimits(&limits));
	EXPECT_EQ(limits.limits.maxTextureDimension1D,
	fakeLimits.limits.maxTextureDimension1D);
	EXPECT_EQ(limits.limits.maxVertexAttributes, fakeLimits.limits.maxVertexAttributes);

	std::vector<wgpu::FeatureName> features;
	features.resize(device.EnumerateFeatures(nullptr));
	ASSERT_EQ(features.size(), fakeFeatures.size());
	EXPECT_EQ(device.EnumerateFeatures(&features[0]), features.size());

	std::unordered_set<wgpu::FeatureName> featureSet(fakeFeatures);
	for (wgpu::FeatureName feature : features) {
	EXPECT_EQ(featureSet.erase(feature), 1u);
	}
	})));
	FlushServer();

	// Cleared when the device is destroyed.
	EXPECT_CALL(api, OnDeviceSetUncapturedErrorCallback(apiDevice, nullptr, nullptr)).Times(1);
	EXPECT_CALL(api, OnDeviceSetLoggingCallback(apiDevice, nullptr, nullptr)).Times(1);
	EXPECT_CALL(api, OnDeviceSetDeviceLostCallback(apiDevice, nullptr, nullptr)).Times(1);
	}

	// Test that features requested that the implementation supports, but not the
	// wire reject the callback.
	TEST_F(WireAdapterTests, RequestFeatureUnsupportedByWire) {
	MockCallback<WGPURequestDeviceCallback> cb;
	auto* userdata = cb.MakeUserdata(this);

	std::initializer_list<wgpu::FeatureName> fakeFeatures = {
	// Some value that is not a valid feature
	static_cast<wgpu::FeatureName>(-2),
	wgpu::FeatureName::TextureCompressionASTC,
	};

	wgpu::DeviceDescriptor desc = {};
	adapter.RequestDevice(&desc, cb.Callback(), userdata);

	// Expect the server to receive the message. Then, mock a fake reply.
	// The reply contains features that the device implementation supports, but the
	// wire does not.
	WGPUDevice apiDevice = api.GetNewDevice();
	EXPECT_CALL(api, OnAdapterRequestDevice(apiAdapter, NotNull(), NotNull(), NotNull()))
	.WillOnce(InvokeWithoutArgs([&]() {
	EXPECT_CALL(api, DeviceEnumerateFeatures(apiDevice, nullptr))
	.WillOnce(Return(fakeFeatures.size()));

	EXPECT_CALL(api, DeviceEnumerateFeatures(apiDevice, NotNull()))
	.WillOnce(WithArg<1>(Invoke([&](WGPUFeatureName* features) {
	for (wgpu::FeatureName feature : fakeFeatures) {
	*(features++) = static_cast<WGPUFeatureName>(feature);
	}
	return fakeFeatures.size();
	})));

	// The device was actually created, but the wire didn't support its features.
	// Expect it to be released.
	EXPECT_CALL(api, DeviceRelease(apiDevice));

	// Fake successful creation. The client still receives a failure due to
	// unsupported features.
	api.CallAdapterRequestDeviceCallback(apiAdapter, WGPURequestDeviceStatus_Success,
	apiDevice, nullptr);
	}));
	FlushClient();

	// Expect an error callback since the feature is not supported.
	EXPECT_CALL(cb, Call(WGPURequestDeviceStatus_Error, nullptr, NotNull(), this)).Times(1);
	FlushServer();
	}

	// Test that RequestDevice errors forward to the client.
	TEST_F(WireAdapterTests, RequestDeviceError) {
	MockCallback<WGPURequestDeviceCallback> cb;
	auto* userdata = cb.MakeUserdata(this);

	wgpu::DeviceDescriptor desc = {};
	adapter.RequestDevice(&desc, cb.Callback(), userdata);

	// Expect the server to receive the message. Then, mock an error.
	EXPECT_CALL(api, OnAdapterRequestDevice(apiAdapter, NotNull(), NotNull(), NotNull()))
	.WillOnce(InvokeWithoutArgs([&]() {
	api.CallAdapterRequestDeviceCallback(apiAdapter, WGPURequestDeviceStatus_Error,
	nullptr, "Request device failed");
	}));
	FlushClient();

	// Expect the callback in the client.
	EXPECT_CALL(
	cb, Call(WGPURequestDeviceStatus_Error, nullptr, StrEq("Request device failed"), this))
	.Times(1);
	FlushServer();
	}

	// Test that RequestDevice receives unknown status if the adapter is deleted
	// before the callback happens.
	TEST_F(WireAdapterTests, RequestDeviceAdapterDestroyedBeforeCallback) {
	MockCallback<WGPURequestDeviceCallback> cb;
	auto* userdata = cb.MakeUserdata(this);

	wgpu::DeviceDescriptor desc = {};
	adapter.RequestDevice(&desc, cb.Callback(), userdata);

	EXPECT_CALL(cb, Call(WGPURequestDeviceStatus_Unknown, nullptr, NotNull(), this)).Times(1);
	adapter = nullptr;
	}

	// Test that RequestDevice receives unknown status if the wire is disconnected
	// before the callback happens.
	TEST_F(WireAdapterTests, RequestDeviceWireDisconnectedBeforeCallback) {
	MockCallback<WGPURequestDeviceCallback> cb;
	auto* userdata = cb.MakeUserdata(this);

	wgpu::DeviceDescriptor desc = {};
	adapter.RequestDevice(&desc, cb.Callback(), userdata);

	EXPECT_CALL(cb, Call(WGPURequestDeviceStatus_Unknown, nullptr, NotNull(), this)).Times(1);
	GetWireClient()->Disconnect();
	}

	} // anonymous namespace