public void EvaluatorTest()
{
PostfixEvaluator.Evaluate(2, 3, '+').Should().Be(5);
PostfixEvaluator.Evaluate(2, 3, '^').Should().Be(8);
PostfixEvaluator.Evaluate(10, -3, '*').Should().Be(-30);
PostfixEvaluator.Evaluate(10, 5, '/').Should().Be(2);
}
public void Deve_avaliar_operador_soma_com_dois_operandos()
{
var eval = new PostfixEvaluator();
var result = eval.Evaluate("2 2 +");
result.Should().Be(4.0);
}
public void Expression_tree_complexa()
{
var eval = new PostfixEvaluator();
// 3 + 4 * 2 / ( 1 - 5 ) ^ 2 ^ 3
var result = eval.BuildExpressionTree("3 4 2 * 1 5 - 2 3 ^ ^ / +");
result.Should().Be(10.4);
}
public void Deve_avaliar_operador_soma_multiplicacao_com_dois_operandos()
{
var eval = new PostfixEvaluator();
// 2 ^ 4 / (5 * 8) + 10
var result = eval.Evaluate("2 4 ^ 5 8 * / 10 +");
result.Should().Be(10.4);
}
public void PostfixEvaluatorTest()
{
// 3 + 4 * 5 = 23
var queue = ShuntingYardAlgorithm.ShuntingYard("3+4*5");
PostfixEvaluator.EvaluatePostfix(queue).Should().Be(23);
// 3 * (4 + 5) = 27
queue = ShuntingYardAlgorithm.ShuntingYard("3*(4+5)");
PostfixEvaluator.EvaluatePostfix(queue).Should().Be(27);
}
private void TbInfix_TextChanged(object sender, TextChangedEventArgs e)
{
QueueUsingDoublyLinkedList <string> temp = InfixToPostfixConverter.ConvertToPostfix(TbInfix.Text);
QueueUsingDoublyLinkedList <string> postfix = new QueueUsingDoublyLinkedList <string>();
var sb = new StringBuilder();
int count = temp.Count;
for (int x = 0; x < count; x++)
{
var y = temp.Dequeue();
postfix.Enqueue(y);
sb.Append(y);
}
TbPostfix.Text = sb.ToString();
TbResult.Text = PostfixEvaluator.EvaluatePostFixExpression(postfix).ToString();
}
