public void TestQueryCompilation()
{
Assert.Equal("prefixpostfix", UtilsLcs.TryExecuteBinaryOberation(ExpressionType.Add, "postfix", "prefix"));
Assert.Equal(null, UtilsLcs.TryExecuteBinaryOberation(ExpressionType.Multiply, "postfix", "prefix"));
Assert.Equal(3, UtilsLcs.TryExecuteBinaryOberation(ExpressionType.Add, 1, 2));
Assert.Equal(1, UtilsLcs.TryExecuteBinaryOberation(ExpressionType.Subtract, 1, 2));
Assert.Equal(2, UtilsLcs.TryExecuteBinaryOberation(ExpressionType.Multiply, 1, 2));
Assert.Equal(2, UtilsLcs.TryExecuteBinaryOberation(ExpressionType.Divide, 1, 2));
Assert.Equal(null, UtilsLcs.TryExecuteBinaryOberation(ExpressionType.Add,
new VariableDef(ldef.StringType, "OperationType"), "123"));
}
