public void CreateBinaryExpression()
{
IExpression leftExpression = new ConstantExpression(1);
IExpression rightExpression = new ConstantExpression(2);
BinaryExpression expression = new ArithmeticBinaryExpression(ArithmeticOperator.Add, leftExpression, rightExpression);
Assert.IsTrue(expression.LeftExpression == leftExpression);
Assert.IsTrue(expression.RightExpression == rightExpression);
}