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// Copyright 2017 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/unittests/validation/ValidationTest.h"
#include "utils/WGPUHelpers.h"
class CommandBufferValidationTest : public ValidationTest {};
// Test for an empty command buffer
TEST_F(CommandBufferValidationTest, Empty) {
device.CreateCommandEncoder().Finish();
}
// Test that a command buffer cannot be ended mid render pass
TEST_F(CommandBufferValidationTest, EndedMidRenderPass) {
DummyRenderPass dummyRenderPass(device);
// Control case, command buffer ended after the pass is ended.
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&dummyRenderPass);
pass.EndPass();
encoder.Finish();
}
// Error case, command buffer ended mid-pass.
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&dummyRenderPass);
ASSERT_DEVICE_ERROR(encoder.Finish());
}
// Error case, command buffer ended mid-pass. Trying to use encoders after Finish
// should fail too.
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&dummyRenderPass);
ASSERT_DEVICE_ERROR(encoder.Finish());
ASSERT_DEVICE_ERROR(pass.EndPass());
}
}
// Test that a command buffer cannot be ended mid compute pass
TEST_F(CommandBufferValidationTest, EndedMidComputePass) {
// Control case, command buffer ended after the pass is ended.
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder pass = encoder.BeginComputePass();
pass.EndPass();
encoder.Finish();
}
// Error case, command buffer ended mid-pass.
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder pass = encoder.BeginComputePass();
ASSERT_DEVICE_ERROR(encoder.Finish());
}
// Error case, command buffer ended mid-pass. Trying to use encoders after Finish
// should fail too.
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder pass = encoder.BeginComputePass();
ASSERT_DEVICE_ERROR(encoder.Finish());
ASSERT_DEVICE_ERROR(pass.EndPass());
}
}
// Test that a render pass cannot be ended twice
TEST_F(CommandBufferValidationTest, RenderPassEndedTwice) {
DummyRenderPass dummyRenderPass(device);
// Control case, pass is ended once
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&dummyRenderPass);
pass.EndPass();
encoder.Finish();
}
// Error case, pass ended twice
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&dummyRenderPass);
pass.EndPass();
pass.EndPass();
ASSERT_DEVICE_ERROR(encoder.Finish());
}
}
// Test that a compute pass cannot be ended twice
TEST_F(CommandBufferValidationTest, ComputePassEndedTwice) {
// Control case, pass is ended once.
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder pass = encoder.BeginComputePass();
pass.EndPass();
encoder.Finish();
}
// Error case, pass ended twice
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder pass = encoder.BeginComputePass();
pass.EndPass();
pass.EndPass();
ASSERT_DEVICE_ERROR(encoder.Finish());
}
}
// Test that beginning a compute pass before ending the previous pass causes an error.
TEST_F(CommandBufferValidationTest, BeginComputePassBeforeEndPreviousPass) {
DummyRenderPass dummyRenderPass(device);
// Beginning a compute pass before ending a render pass causes an error.
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder renderPass = encoder.BeginRenderPass(&dummyRenderPass);
wgpu::ComputePassEncoder computePass = encoder.BeginComputePass();
computePass.EndPass();
renderPass.EndPass();
ASSERT_DEVICE_ERROR(encoder.Finish());
}
// Beginning a compute pass before ending a compute pass causes an error.
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder computePass1 = encoder.BeginComputePass();
wgpu::ComputePassEncoder computePass2 = encoder.BeginComputePass();
computePass2.EndPass();
computePass1.EndPass();
ASSERT_DEVICE_ERROR(encoder.Finish());
}
}
// Test that encoding command after a successful finish produces an error
TEST_F(CommandBufferValidationTest, CallsAfterASuccessfulFinish) {
// A buffer that can be used in CopyBufferToBuffer
wgpu::BufferDescriptor copyBufferDesc;
copyBufferDesc.size = 16;
copyBufferDesc.usage = wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::CopyDst;
wgpu::Buffer copyBuffer = device.CreateBuffer(&copyBufferDesc);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
encoder.Finish();
ASSERT_DEVICE_ERROR(encoder.CopyBufferToBuffer(copyBuffer, 0, copyBuffer, 0, 0));
}
// Test that encoding command after a failed finish produces an error
TEST_F(CommandBufferValidationTest, CallsAfterAFailedFinish) {
// A buffer that can be used in CopyBufferToBuffer
wgpu::BufferDescriptor copyBufferDesc;
copyBufferDesc.size = 16;
copyBufferDesc.usage = wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::CopyDst;
wgpu::Buffer copyBuffer = device.CreateBuffer(&copyBufferDesc);
// A buffer that can't be used in CopyBufferToBuffer
wgpu::BufferDescriptor bufferDesc;
bufferDesc.size = 16;
bufferDesc.usage = wgpu::BufferUsage::Uniform;
wgpu::Buffer buffer = device.CreateBuffer(&bufferDesc);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
encoder.CopyBufferToBuffer(buffer, 0, buffer, 0, 0);
ASSERT_DEVICE_ERROR(encoder.Finish());
ASSERT_DEVICE_ERROR(encoder.CopyBufferToBuffer(copyBuffer, 0, copyBuffer, 0, 0));
}