// Copyright 2022 The Dawn & Tint Authors
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#include "src/dawn/tests/unittests/native/mocks/BufferMock.h"

#include <memory>

#include "src/dawn/native/ChainUtils.h"

namespace dawn::native {

using ::testing::Return;

BufferMock::BufferMock(DeviceMock* device,
                       const UnpackedPtr<BufferDescriptor>& descriptor,
                       std::optional<uint64_t> allocatedSizeOverride)
    : BufferBase(device, descriptor) {
    mAllocatedSize = allocatedSizeOverride.value_or(GetSize());
    DAWN_ASSERT(mAllocatedSize >= GetSize());
    mBackingData = std::unique_ptr<uint8_t[]>(new uint8_t[mAllocatedSize.value()]);

    ON_CALL(*this, DestroyImpl).WillByDefault([this](DestroyReason reason) {
        this->BufferBase::DestroyImpl(reason);
    });
    ON_CALL(*this, GetMappedPointerImpl).WillByDefault(Return(mBackingData.get()));
    ON_CALL(*this, IsCPUWritableAtCreation).WillByDefault([this] {
        return (GetInternalUsage() & (wgpu::BufferUsage::MapRead | wgpu::BufferUsage::MapWrite)) !=
               0;
    });
}

BufferMock::BufferMock(DeviceMock* device,
                       const BufferDescriptor* descriptor,
                       std::optional<uint64_t> allocatedSizeOverride)
    : BufferMock(device, Unpack(descriptor), allocatedSizeOverride) {}

BufferMock::~BufferMock() = default;

}  // namespace dawn::native
