public void SumListsForwardTest(int?num1, int?num2, int expected)
{
var testList1 = Helper.ConvertIntToListOfDigitsForward(num1);
var testList2 = Helper.ConvertIntToListOfDigitsForward(num2);
var expectedList = Helper.ConvertIntToListOfDigitsForward(expected);
LinkedList resultList = Question_2_5.SumListsForward(testList1, testList2);
Assert.AreEqual(expectedList, resultList);
}
public void Question_2_5_InvalidCases()
{
var node = new Node <Digit>(new Digit(1));
TestHelpers.AssertExceptionThrown(() => Question_2_5.SumListsReversed(null, node), typeof(ArgumentNullException));
TestHelpers.AssertExceptionThrown(() => Question_2_5.SumListsReversed(node, null), typeof(ArgumentNullException));
TestHelpers.AssertExceptionThrown(() => Question_2_5.SumLists(null, node), typeof(ArgumentNullException));
TestHelpers.AssertExceptionThrown(() => Question_2_5.SumLists(node, null), typeof(ArgumentNullException));
}
private static void Validate(int num1, int num2)
{
var numberAsReversedList1 = CreateDigitList(num1, reversed: true);
var numberAsReversedList2 = CreateDigitList(num2, reversed: true);
var expected = CreateDigitList(num1 + num2, reversed: true);
var result = Question_2_5.SumListsReversed(numberAsReversedList1, numberAsReversedList2);
ListHelpers.ValidateLinkedListContent(expected, result);
var numberAsList1 = CreateDigitList(num1, reversed: false);
var numberAsList2 = CreateDigitList(num2, reversed: false);
var result2 = Question_2_5.SumLists(numberAsList1, numberAsList2);
ListHelpers.ValidateLinkedListContent(expected, result2);
}
