private void sumOfMultiplesButton_Click(object sender, EventArgs e)
{
int input = 0;
if (int.TryParse(inputRichTextBox.Text, out input))
{
this.ResultText = _sumOfMultiplesCalcultor.SumOfMultiplesOfThreeAndFive(input).ToString();
}
else
{
this.ErrorText = "Given input is not a number or not withing given boundaries between 4 and 2147483647";
}
}
public void GetSumOfMultiplesOfThreeAndFiveWithLimitEqualsToIntegerMaxNumberTest()
{
// arrange
int limit = int.MaxValue;
SumOfMultiplesOf3And5 sumOfMultiples = new SumOfMultiplesOf3And5();
decimal expected = 1076060070465310994m;
// (new SumOfMultiplesHelper()).SumOfMultiplesOfThreeAndFive(limit);
// act
decimal actual = sumOfMultiples.SumOfMultiplesOfThreeAndFive(limit);
// assert
Assert.AreEqual(expected, actual);
}
public void GetSumOfMultiplesOfThreeAndFiveWithLargeLimitNumber()
{
// arrange
int limit = 1000000000;
SumOfMultiplesOf3And5 sumOfMultiples = new SumOfMultiplesOf3And5();
decimal expected = 233333333166666668m;
// (new SumOfMultiplesHelper()).SumOfMultiplesOfThreeAndFive(limit);
// act
decimal actual = sumOfMultiples.SumOfMultiplesOfThreeAndFive(limit);
// assert
Assert.AreEqual(expected, actual);
}
public void GetSumOfMultiplesOfThreeAndFiveWithLimitEqualsToSixteenTest()
{
// arrange
int limit = 16;
SumOfMultiplesOf3And5 sumOfMultiples = new SumOfMultiplesOf3And5();
decimal expected = 60m;
// (new SumOfMultiplesHelper()).SumOfMultiplesOfThreeAndFive(limit);
// act
decimal actual = sumOfMultiples.SumOfMultiplesOfThreeAndFive(limit);
// assert
Assert.AreEqual(expected, actual);
}
public void GetSumOfMultiplesOfThreeAndFiveWithLimitEqualsMinimumNumberContainsThreeAndFiveTest()
{
// arrange
int limit = 6;
SumOfMultiplesOf3And5 sumOfMultiples = new SumOfMultiplesOf3And5();
decimal expected = 8m;
// (new SumOfMultiplesHelper()).SumOfMultiplesOfThreeAndFive(limit);
// act
decimal actual = sumOfMultiples.SumOfMultiplesOfThreeAndFive(limit);
// assert
Assert.AreEqual(expected, actual);
}
public void GetSumOfMultiplesOfThreeAndFiveWithRandomLimitNumberGreaterThan100Million()
{
// arrange
Random random = new Random();
int limit = random.Next(100000000, int.MaxValue);
SumOfMultiplesOf3And5 sumOfMultiples = new SumOfMultiplesOf3And5();
SumOfMultiplesHelper myCalculator = new SumOfMultiplesHelper();
decimal expected = myCalculator.SumOfMultiplesOfThreeAndFive(limit);
// act
decimal actual = sumOfMultiples.SumOfMultiplesOfThreeAndFive(limit);
// assert
Assert.AreEqual(expected, actual);
}
public void GetSumOfMultiplesOfThreeAndFiveWithLimitEqualsToZeroTest()
{
// arrange
int limit = 0;
SumOfMultiplesOf3And5 sumOfMultiples = new SumOfMultiplesOf3And5();
// act && assert
try
{
sumOfMultiples.SumOfMultiplesOfThreeAndFive(limit);
}
catch (LimitIsNegativeOrZeroException)
{
return;
}
catch
{
Assert.Fail("LimitIsNegativeOrZeroException was not thrown.");
}
Assert.Fail("No exception was thrown.");
}
public void GetSumOfMultiplesOfThreeAndFiveWithLimitEqualsToThreeTest()
{
int limit = 3;
SumOfMultiplesOf3And5 sumOfMultiples = new SumOfMultiplesOf3And5();
// act && assert
try
{
sumOfMultiples.SumOfMultiplesOfThreeAndFive(limit);
}
catch (LimitIsLessThanNumberException ex)
{
//AssertFailedException
StringAssert.Contains(ex.Message, "Given limit number is less than or equal 3");
return;
}
catch
{
Assert.Fail("LimitIsLessThanNumberException was not thrown.");
}
Assert.Fail("No exception was thrown.");
}
public void GetSumOfMultiplesOfThreeAndFiveWithNegativeLimitTest()
{
// arrange
Random random = new Random();
int limit = random.Next(int.MinValue, -1);
SumOfMultiplesOf3And5 sumOfMultiples = new SumOfMultiplesOf3And5();
// act && assert
try
{
sumOfMultiples.SumOfMultiplesOfThreeAndFive(limit);
}
catch (LimitIsNegativeOrZeroException)
{
return;
}
catch
{
Assert.Fail("LimitIsNegativeOrZeroException was not thrown.");
}
Assert.Fail("No exception was thrown.");
}