public void StringCalculatorExpressionSplitsTokensBySpecifiedDelimeter()
{
var stringCalculatorExpression = new StringCalculatorExpression("//$\n1$3$5");
var tokens = stringCalculatorExpression.Tokenise();
tokens.ShouldBe(new[] { "1", "3", "5" });
}
public int Add(string numbers)
{
_expression = new StringCalculatorExpression(numbers);
VerifyInputNumbersArePositive();
return TokenisedExpression.Sum();
}
public void StringCalculatorExpressionSplitsTokensByCommaOrNewLineByDefault()
{
var stringCalculatorExpression = new StringCalculatorExpression("1,2\n3");
var tokens = stringCalculatorExpression.Tokenise();
tokens.ShouldBe(new[] { "1", "2", "3" });
}
public void StringCalculatorExpressionSplitsSingleTokensWhenDelimeterSpecified()
{
var stringCalculatorExpression = new StringCalculatorExpression("//.\n1");
var tokens = stringCalculatorExpression.Tokenise();
tokens.ShouldBe(new[] { "1" });
}
public void StringCalculatorExpressionShouldTokeniseToInputStringWhenNoDelimeterUsed()
{
var expression = new StringCalculatorExpression("1");
var tokens = expression.Tokenise();
tokens.ShouldBe(new[] { "1" });
}
public void StringCalculatorExpressionShouldTokeniseToEmptyEnumerationWhenEmptyStringProvided()
{
var stringCalculatorExpression = new StringCalculatorExpression(string.Empty);
var tokens = stringCalculatorExpression.Tokenise();
tokens.ShouldBeEmpty();
}
public void StringCalculatorExpressionShouldSplitTokensByCommaByDefault()
{
var stringCalculatorExpression = new StringCalculatorExpression("1,2");
var tokens = stringCalculatorExpression.Tokenise();
tokens.ShouldBe(new[] { "1", "2" });
}