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// Copyright 2019 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 <memory>
#include "dawn/tests/MockCallback.h"
#include "dawn/tests/unittests/validation/ValidationTest.h"
#include "gmock/gmock.h"
using testing::_;
using testing::MockCallback;
using testing::Sequence;
class MockDevicePopErrorScopeCallback {
public:
MOCK_METHOD(void, Call, (WGPUErrorType type, const char* message, void* userdata));
};
static std::unique_ptr<MockDevicePopErrorScopeCallback> mockDevicePopErrorScopeCallback;
static void ToMockDevicePopErrorScopeCallback(WGPUErrorType type,
const char* message,
void* userdata) {
mockDevicePopErrorScopeCallback->Call(type, message, userdata);
}
class MockQueueWorkDoneCallback {
public:
MOCK_METHOD(void, Call, (WGPUQueueWorkDoneStatus status, void* userdata));
};
static std::unique_ptr<MockQueueWorkDoneCallback> mockQueueWorkDoneCallback;
static void ToMockQueueWorkDone(WGPUQueueWorkDoneStatus status, void* userdata) {
mockQueueWorkDoneCallback->Call(status, userdata);
}
class ErrorScopeValidationTest : public ValidationTest {
protected:
void FlushWireAndTick() {
FlushWire();
device.Tick();
}
private:
void SetUp() override {
ValidationTest::SetUp();
mockDevicePopErrorScopeCallback = std::make_unique<MockDevicePopErrorScopeCallback>();
mockQueueWorkDoneCallback = std::make_unique<MockQueueWorkDoneCallback>();
}
void TearDown() override {
ValidationTest::TearDown();
// Delete mocks so that expectations are checked
mockDevicePopErrorScopeCallback = nullptr;
mockQueueWorkDoneCallback = nullptr;
}
};
// Test the simple success case.
TEST_F(ErrorScopeValidationTest, Success) {
device.PushErrorScope(wgpu::ErrorFilter::Validation);
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_NoError, _, this)).Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this);
FlushWireAndTick();
}
// Test the simple case where the error scope catches an error.
TEST_F(ErrorScopeValidationTest, CatchesError) {
device.PushErrorScope(wgpu::ErrorFilter::Validation);
wgpu::BufferDescriptor desc = {};
desc.usage = static_cast<wgpu::BufferUsage>(WGPUBufferUsage_Force32);
device.CreateBuffer(&desc);
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_Validation, _, this)).Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this);
FlushWireAndTick();
}
// Test that errors bubble to the parent scope if not handled by the current scope.
TEST_F(ErrorScopeValidationTest, ErrorBubbles) {
device.PushErrorScope(wgpu::ErrorFilter::Validation);
device.PushErrorScope(wgpu::ErrorFilter::OutOfMemory);
wgpu::BufferDescriptor desc = {};
desc.usage = static_cast<wgpu::BufferUsage>(WGPUBufferUsage_Force32);
device.CreateBuffer(&desc);
// OutOfMemory does not match Validation error.
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_NoError, _, this)).Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this);
FlushWireAndTick();
// Parent validation error scope captures the error.
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_Validation, _, this + 1))
.Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this + 1);
FlushWireAndTick();
}
// Test that if an error scope matches an error, it does not bubble to the parent scope.
TEST_F(ErrorScopeValidationTest, HandledErrorsStopBubbling) {
device.PushErrorScope(wgpu::ErrorFilter::OutOfMemory);
device.PushErrorScope(wgpu::ErrorFilter::Validation);
wgpu::BufferDescriptor desc = {};
desc.usage = static_cast<wgpu::BufferUsage>(WGPUBufferUsage_Force32);
device.CreateBuffer(&desc);
// Inner scope catches the error.
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_Validation, _, this)).Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this);
FlushWireAndTick();
// Parent scope does not see the error.
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_NoError, _, this + 1))
.Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this + 1);
FlushWireAndTick();
}
// Test that if no error scope handles an error, it goes to the device UncapturedError callback
TEST_F(ErrorScopeValidationTest, UnhandledErrorsMatchUncapturedErrorCallback) {
device.PushErrorScope(wgpu::ErrorFilter::OutOfMemory);
wgpu::BufferDescriptor desc = {};
desc.usage = static_cast<wgpu::BufferUsage>(WGPUBufferUsage_Force32);
ASSERT_DEVICE_ERROR(device.CreateBuffer(&desc));
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_NoError, _, this)).Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this);
FlushWireAndTick();
}
// Check that push/popping error scopes must be balanced.
TEST_F(ErrorScopeValidationTest, PushPopBalanced) {
// No error scopes to pop.
{
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_Unknown, _, this))
.Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this);
FlushWireAndTick();
}
// Too many pops
{
device.PushErrorScope(wgpu::ErrorFilter::Validation);
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_NoError, _, this + 1))
.Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this + 1);
FlushWireAndTick();
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_Unknown, _, this + 2))
.Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this + 2);
FlushWireAndTick();
}
}
// Test that parent error scopes also call their callbacks before an enclosed Queue::Submit
// completes
TEST_F(ErrorScopeValidationTest, EnclosedQueueSubmitNested) {
wgpu::Queue queue = device.GetQueue();
device.PushErrorScope(wgpu::ErrorFilter::OutOfMemory);
device.PushErrorScope(wgpu::ErrorFilter::OutOfMemory);
queue.Submit(0, nullptr);
queue.OnSubmittedWorkDone(0u, ToMockQueueWorkDone, this);
Sequence seq;
MockCallback<WGPUErrorCallback> errorScopeCallback2;
EXPECT_CALL(errorScopeCallback2, Call(WGPUErrorType_NoError, _, this + 1)).InSequence(seq);
device.PopErrorScope(errorScopeCallback2.Callback(),
errorScopeCallback2.MakeUserdata(this + 1));
MockCallback<WGPUErrorCallback> errorScopeCallback1;
EXPECT_CALL(errorScopeCallback1, Call(WGPUErrorType_NoError, _, this + 2)).InSequence(seq);
device.PopErrorScope(errorScopeCallback1.Callback(),
errorScopeCallback1.MakeUserdata(this + 2));
EXPECT_CALL(*mockQueueWorkDoneCallback, Call(WGPUQueueWorkDoneStatus_Success, this))
.InSequence(seq);
WaitForAllOperations(device);
}
// Test that if the device is destroyed before the callback occurs, it is called with NoError
// in dawn_native, but Unknown in dawn_wire because the device is destroyed before the callback
// message happens.
TEST_F(ErrorScopeValidationTest, DeviceDestroyedBeforeCallback) {
device.PushErrorScope(wgpu::ErrorFilter::OutOfMemory);
{
// Note: this is in its own scope to be clear the queue does not outlive the device.
wgpu::Queue queue = device.GetQueue();
queue.Submit(0, nullptr);
}
if (UsesWire()) {
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this);
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_Unknown, _, this))
.Times(1);
ExpectDeviceDestruction();
device = nullptr;
} else {
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_NoError, _, this))
.Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this);
ExpectDeviceDestruction();
device = nullptr;
}
}
// If the device is destroyed, pop error scope should callback with device lost.
TEST_F(ErrorScopeValidationTest, DeviceDestroyedBeforePop) {
device.PushErrorScope(wgpu::ErrorFilter::Validation);
ExpectDeviceDestruction();
device.Destroy();
FlushWireAndTick();
EXPECT_CALL(*mockDevicePopErrorScopeCallback, Call(WGPUErrorType_DeviceLost, _, this)).Times(1);
device.PopErrorScope(ToMockDevicePopErrorScopeCallback, this);
FlushWireAndTick();
}
// Regression test that on device shutdown, we don't get a recursion in O(pushed error scope) that
// would lead to a stack overflow
TEST_F(ErrorScopeValidationTest, ShutdownStackOverflow) {
for (size_t i = 0; i < 1'000'000; i++) {
device.PushErrorScope(wgpu::ErrorFilter::Validation);
}
}