Tools/TestWebKitAPI/Tests/WebCore/mac/GPUBuffer.mm

/*
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#import "config.h"

#if ENABLE(WEBGPU)

#import "GPUTest.h"
#import <JavaScriptCore/ArrayBuffer.h>
#import <JavaScriptCore/ArrayBufferView.h>
#import <JavaScriptCore/GenericTypedArrayViewInlines.h>
#import <JavaScriptCore/JSCInlines.h>
#import <JavaScriptCore/JSGenericTypedArrayViewInlines.h>
#import <JavaScriptCore/TypedArrays.h>
#import <Metal/Metal.h>
#import <WebCore/GPUBuffer.h>
#import <WebCore/GPUDevice.h>

using namespace WebCore;

namespace TestWebKitAPI {

TEST_F(GPU, BufferCreate)
{
    auto device = GPUDevice::create();
    // Not all hardware supports Metal, so it is possible
    // that we were unable to create the MTLDevice object.
    // In that case, the device should be null.
    if (!device)
        return;

    id<MTLDevice> mtlDevice = (id<MTLDevice>)device->platformDevice();
    EXPECT_NOT_NULL(mtlDevice);

    auto bufferView = JSC::Uint8Array::create(1024);

    uint8_t* data = bufferView->data();
    memset(data, 1, bufferView->byteLength());

    auto buffer = device->createBufferFromData(bufferView.get());
    EXPECT_NOT_NULL(buffer);
    EXPECT_EQ(buffer->length(), static_cast<unsigned long>(1024));

    auto contents = buffer->contents();
    EXPECT_NOT_NULL(contents);
    EXPECT_EQ(contents->byteLength(), static_cast<unsigned long>(1024));

    uint8_t* contentsData = static_cast<uint8_t*>(contents->data());
    EXPECT_NE(contentsData, data);
    EXPECT_EQ(contentsData[0], 1);
    EXPECT_EQ(contentsData[512], 1);
    EXPECT_EQ(contentsData[1023], 1);

    MTLBuffer *mtlBuffer = buffer->platformBuffer();
    EXPECT_NOT_NULL(mtlBuffer);


}

} // namespace TestWebKitAPI

#endif