blob: c537a8e9594f95befacff468a9feaad0cd52a93e [file] [log] [blame]
// 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 <gtest/gtest.h>
#include "common/RefCounted.h"
#include "dawn_native/ToBackend.h"
#include <type_traits>
// Make our own Base - Backend object pair, reusing the CommandBuffer name
namespace dawn_native {
class CommandBufferBase : public RefCounted {
};
}
using namespace dawn_native;
class MyCommandBuffer : public CommandBufferBase {
};
struct MyBackendTraits {
using CommandBufferType = MyCommandBuffer;
};
// Instanciate ToBackend for our "backend"
template<typename T>
auto ToBackend(T&& common) -> decltype(ToBackendBase<MyBackendTraits>(common)) {
return ToBackendBase<MyBackendTraits>(common);
}
// Test that ToBackend correctly converts pointers to base classes.
TEST(ToBackend, Pointers) {
{
MyCommandBuffer* cmdBuf = new MyCommandBuffer;
const CommandBufferBase* base = cmdBuf;
auto backendCmdBuf = ToBackend(base);
static_assert(std::is_same<decltype(backendCmdBuf), const MyCommandBuffer*>::value, "");
ASSERT_EQ(cmdBuf, backendCmdBuf);
cmdBuf->Release();
}
{
MyCommandBuffer* cmdBuf = new MyCommandBuffer;
CommandBufferBase* base = cmdBuf;
auto backendCmdBuf = ToBackend(base);
static_assert(std::is_same<decltype(backendCmdBuf), MyCommandBuffer*>::value, "");
ASSERT_EQ(cmdBuf, backendCmdBuf);
cmdBuf->Release();
}
}
// Test that ToBackend correctly converts Refs to base classes.
TEST(ToBackend, Ref) {
{
MyCommandBuffer* cmdBuf = new MyCommandBuffer;
const Ref<CommandBufferBase> base(cmdBuf);
const auto& backendCmdBuf = ToBackend(base);
static_assert(std::is_same<decltype(ToBackend(base)), const Ref<MyCommandBuffer>&>::value, "");
ASSERT_EQ(cmdBuf, backendCmdBuf.Get());
cmdBuf->Release();
}
{
MyCommandBuffer* cmdBuf = new MyCommandBuffer;
Ref<CommandBufferBase> base(cmdBuf);
auto backendCmdBuf = ToBackend(base);
static_assert(std::is_same<decltype(ToBackend(base)), Ref<MyCommandBuffer>&>::value, "");
ASSERT_EQ(cmdBuf, backendCmdBuf.Get());
cmdBuf->Release();
}
}