public void Test_SetMemory()
{
Calculator calcul = new Calculator();
calcul.setMemory(true);
Assert.True(calcul.useMemory);
calcul.setMemory(false);
Assert.False(calcul.useMemory);
}
public void Test_Operate()
{
string expressionString = "(2*4+5)";
string sign = "*";
string Rstring = @"\-?\d+\+\-?\d+";
Calculator tempcalcul = new Calculator();
switch (sign)
{
case "-":
Rstring = @"\-?\d+\-\-?\d+";
break;
case "*":
Rstring = @"\-?\d+\*\-?\d+";
break;
case "/":
Rstring = @"\-?\d+\/\-?\d+";
break;
}
foreach (Match multiply in Regex.Matches(expressionString, Rstring, RegexOptions.IgnoreCase))
{
string multiplyString = multiply.ToString();
int index = multiplyString.IndexOf(sign, 1);
string str2 = multiplyString.Substring(index);
string str1 = multiplyString.Replace(str2, "");
tempcalcul.Reset();
if (sign == "-")
{
str2 = str2.IndexOf("-", 1) > 0 ? "-" + str2.Replace("-", "") : str2.Replace("-", "");
tempcalcul.setMemory(false);
}
else
{
str2 = str2.Replace(sign, "");
}
decimal str1Decimal = Convert.ToDecimal(str1);
doCalcul(str1Decimal, ref tempcalcul, sign);
if (sign == "-")
{
tempcalcul.setMemory(true);
}
decimal str1Decima2 = Convert.ToDecimal(str2);
doCalcul(str1Decima2, ref tempcalcul, sign);
expressionString = expressionString.Replace(multiply.ToString(), tempcalcul.result.ToString());
}
Assert.Equal("(8+5)", expressionString);
}
