public void InputInstructions_ValidForOneNumber()
{
CalculationExpressionParser parser = new CalculationExpressionParser();
string singleNumber = parser.InputInstructions("//;\n1");
Assert.AreEqual("1", singleNumber);
string multipleNumbers = parser.InputInstructions("//;\n1,2");
Assert.AreEqual("1,2", multipleNumbers);
}
public void Delimiters_IsValidFor_MultiCharacterDelimiters()
{
CalculationExpressionParser parser = new CalculationExpressionParser();
string calcProgram = "//[***]\n1***2***3";
string delimiter = parser.Delimiters(calcProgram)[0];
Assert.AreEqual("***", delimiter);
string instructions = parser.InputInstructions(calcProgram);
Assert.AreEqual("1***2***3", instructions);
}
public void InputInstructions_Valid_WithoutDelimiterExpression()
{
CalculationExpressionParser parser = new CalculationExpressionParser();
string multipleNumbersNoInstructions = parser.InputInstructions("2,1");
Assert.AreEqual("2,1", multipleNumbersNoInstructions);
}