public void AccessorRawMemoryMappingTest()
        {
            var filename = "TeaFileTTest_AccessorRawMemoryMappingTest.tea";

            using (TeaFile <Tick> .Create(filename))
            {
                //  an empty file holding the description is enough for this test
            }
            Executing.This(() => TeaFile <OHLCV> .OpenRawMemoryMapping(filename)).Should().Throw <TypeMismatchException>();
        }