public void LargeExpression()
{
Random rnd = new Random();
var inputString = new StringBuilder(100000);
int value = rnd.Next(1, 1000);
var expectedResult = value;
inputString.Append(value.ToString());
for (int i = 0; i < 50000; i++)
{
value = rnd.Next(1, 1000);
if (value % 2 == 0)
{
inputString.Append("+");
expectedResult += value;
}
else
{
inputString.Append("-");
expectedResult -= value;
}
inputString.Append(value.ToString());
}
var calculator = new StringCalculator();
Assert.AreEqual(expectedResult, calculator.CalculateString(inputString.ToString()));
}
public void InputStringWithNewLine()
{
var inputString = "100+1\n";
var calculator = new StringCalculator();
Assert.AreEqual(101, calculator.CalculateString(inputString));
}
public void OneNumber()
{
var inputString = "100";
var calculator = new StringCalculator();
Assert.AreEqual(100, calculator.CalculateString(inputString));
}
public void OneHundredThousandSymbols()
{
var inputString = new StringBuilder(100000);
inputString.Append("1");
for (int i = 1; i < 50000; i++)
{
inputString.Append("+");
inputString.Append("1");
}
var calculator = new StringCalculator();
Assert.AreEqual(50000, calculator.CalculateString(inputString.ToString()));
}