src/dawn/tests/unittests/validation/MultipleDeviceTests.cpp

// Copyright 2021 The Dawn & Tint Authors
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#include "dawn/tests/unittests/validation/ValidationTest.h"

#include "dawn/native/DawnNative.h"
#include "dawn/tests/MockCallback.h"

namespace dawn {
namespace {

using testing::_;
using testing::IsNull;
using testing::MockCppCallback;
using testing::NotNull;

class MultipleDeviceTest : public ValidationTest {};

// Test that it is invalid to submit a command buffer created on a different device.
TEST_F(MultipleDeviceTest, ValidatesSameDevice) {
    wgpu::Device device2 = RequestDeviceSync(wgpu::DeviceDescriptor{});
    wgpu::CommandBuffer commandBuffer = device2.CreateCommandEncoder().Finish();

    ASSERT_DEVICE_ERROR(device.GetQueue().Submit(1, &commandBuffer));
}

// Test that CreatePipelineAsync fails creation with an Error status if it uses
// objects from a different device.
TEST_F(MultipleDeviceTest, ValidatesSameDeviceCreatePipelineAsync) {
    wgpu::ShaderSourceWGSL wgslDesc = {};
    wgslDesc.code = R"(
         @compute @workgroup_size(1, 1, 1) fn main() {
        }
    )";

    wgpu::ShaderModuleDescriptor shaderModuleDesc = {};
    shaderModuleDesc.nextInChain = &wgslDesc;

    using MockComputePipelineAsyncCallback = MockCppCallback<void (*)(
        wgpu::CreatePipelineAsyncStatus, wgpu::ComputePipeline, wgpu::StringView)>;

    // Base case: CreateComputePipelineAsync succeeds.
    {
        wgpu::ShaderModule shaderModule = device.CreateShaderModule(&shaderModuleDesc);

        wgpu::ComputePipelineDescriptor pipelineDesc = {};
        pipelineDesc.compute.module = shaderModule;

        MockComputePipelineAsyncCallback creationCallback;
        EXPECT_CALL(creationCallback, Call(wgpu::CreatePipelineAsyncStatus::Success, NotNull(), _))
            .Times(1);
        device.CreateComputePipelineAsync(&pipelineDesc,
                                          UsesWire() ? wgpu::CallbackMode::AllowSpontaneous
                                                     : wgpu::CallbackMode::AllowProcessEvents,
                                          creationCallback.Callback());

        WaitForAllOperations();
    }

    // CreateComputePipelineAsync errors if the shader module is created on a different device.
    {
        wgpu::Device device2 = RequestDeviceSync(wgpu::DeviceDescriptor{});
        wgpu::ShaderModule shaderModule = device2.CreateShaderModule(&shaderModuleDesc);

        wgpu::ComputePipelineDescriptor pipelineDesc = {};
        pipelineDesc.compute.module = shaderModule;

        MockComputePipelineAsyncCallback creationCallback;
        EXPECT_CALL(creationCallback,
                    Call(wgpu::CreatePipelineAsyncStatus::ValidationError, IsNull(), _))
            .Times(1);
        device.CreateComputePipelineAsync(&pipelineDesc,
                                          UsesWire() ? wgpu::CallbackMode::AllowSpontaneous
                                                     : wgpu::CallbackMode::AllowProcessEvents,
                                          creationCallback.Callback());

        WaitForAllOperations();
    }
}

}  // anonymous namespace
}  // namespace dawn