public void EvaluationTest()
{
var operand = new NumberExpression("10");
var addition = new AdditionBinaryExpression
{
LeftOperand = operand,
RightOperand = operand
};
var subraction = new SubtractionBinaryExpression
{
LeftOperand = operand,
RightOperand = operand
};
var division = new DivisionBinaryExpression
{
LeftOperand = operand,
RightOperand = operand
};
var multiplication = new MultiplicationBinaryExpression
{
LeftOperand = operand,
RightOperand = operand
};
Assert.AreEqual(20, addition.Evaluate(), "Ошибка в вычилсении AdditionBinaryExpression");
Assert.AreEqual(0, subraction.Evaluate(), "Ошибка в вычилсении SubtractionBinaryExpression");
Assert.AreEqual(1, division.Evaluate(), "Ошибка в вычилсении DivisionBinaryExpression");
Assert.AreEqual(100, multiplication.Evaluate(), "Ошибка в вычилсении MultiplicationBinaryExpression");
}
public void ExpressionTest()
{
// (10 + 20) * 30 / 40
var e1 = new ValueExpression(10);
var e2 = new ValueExpression(20);
var e3 = new ValueExpression(30);
var e4 = new ValueExpression(40);
Expression expression =
new DivisionBinaryExpression(
new MultiplicationBinaryExpression(
new AdditionBinaryExpression(e1, e2), e3), e4);
var solution = expression.Solve();
Assert.That(solution, Is.EqualTo(22.5));
}