public void Should_Correctly_Calculate_Simple_Sum()
{
//Given, When
var result = ReversePolish.CalculateExpression("1 2 +");
//Then
Assert.Equal(3, result);
}
public void Should_Correctly_Calculate_Long_Expression_More_Operators_per_Series()
{
//Given, When
var result = ReversePolish.CalculateExpression("15 7 1 1 + - / 3 * 2 1 1 + + -");
//Then
Assert.Equal(5, result);
}
public void Should_Correctly_Calculate_Simple_Expression_ConsequitiveOperators()
{
//Given, When
var result = ReversePolish.CalculateExpression("2 1 3 - +");
//Then
Assert.Equal(0, result);
}
public void Should_Correctly_Calculate_MoreComplicated_Expression()
{
//Given, When
var result = ReversePolish.CalculateExpression("2 1 - 3 *");
//Then
Assert.Equal(3, result);
}
public void Should_Correctly_Calculate_Simple_Difference()
{
//Given, When
var result = ReversePolish.CalculateExpression("2 1 -");
//Then
Assert.Equal(1, result);
}
public void TestReversePolish()
{
for (int i = 0; i < reversePolishInputs.Count; i++)
{
var input = reversePolishInputs[i];
var output = reversePolishOutputs[i];
Assert.AreEqual(output, ReversePolish.Calculate(input.ToArray()));
}
}
private void Input_TextChanged(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(Input.Text))
{
Output.Text = "";
}
else
{
try
{
ReversePolish polish = new ReversePolish(Input.Text);
Output.Text = polish.GetValue().ToString();
}
catch (Exception)
{
Output.Text = "";
}
}
}
