public void TestLockUnlockShapeData()
{
Flex.Library lib = Flex.Init(Flex.FLEX_VERSION, ErrorCallback);
Flex.SolverDesc slvDsc = default(Flex.SolverDesc);
Flex.SetSolverDescDefaults(ref slvDsc);
slvDsc.maxParticles = 1000;
Flex.Solver solver = Flex.CreateSolver(lib, ref slvDsc);
FlexExt.Container container = FlexExt.CreateContainer(lib, solver, 1000);
FlexExt.ShapeData data = FlexExt.MapShapeData(container);
Assert.AreNotEqual(IntPtr.Zero, data.positions);
FlexExt.UnmapShapeData(container);
FlexExt.DestroyContainer(container);
Flex.DestroySolver(solver);
Flex.Shutdown(lib);
}