static void Main(string[] args)
{
Stopwatch sw = new Stopwatch();
int[] array = Enumerable.Range(1, 7_000_000).ToArray();
sw.Start();
DataManipulator.FilterDigit(array, 7);
sw.Stop();
Console.WriteLine(nameof(DataManipulator.FilterDigit) + " elapsed time: " + sw.ElapsedTicks);
sw.Restart();
DataManipulator.FilterDigit1(array, 7);
sw.Stop();
Console.WriteLine(nameof(DataManipulator.FilterDigit1) + " elapsed time: " + sw.ElapsedTicks);
sw.Restart();
DataManipulator.FilterDigit2(array, 7);
sw.Stop();
Console.WriteLine(nameof(DataManipulator.FilterDigit2) + " elapsed time: " + sw.ElapsedTicks);
sw.Restart();
DataManipulator.FilterDigit3(array, 7);
sw.Stop();
Console.WriteLine(nameof(DataManipulator.FilterDigit3) + " elapsed time: " + sw.ElapsedTicks);
Console.ReadKey();
}
public void FilterDigit_NotDigitAsFilteringInput_ArgumentException()
{
DataManipulator.FilterDigit(new int[0], 12);
}
public void FilterDigit_EmptyCollection_ArgumentException()
{
DataManipulator.FilterDigit(new int[0], 7);
}
public void FilterDigit_NullCollection_ArgumentException()
{
DataManipulator.FilterDigit(null, 7);
}
public void FilterDigit_CollectionsContainingFilteredNumber_FilteredCollection()
{
int[] testData = new int[] { 7, 1, 2, 3, 4, 5, 6, 7, 68, 69, 70, 15, 17 };
CollectionAssert.AreEquivalent(new int[] { 7, 7, 70, 17 }, DataManipulator.FilterDigit(testData, 7));
}
public void FilterDigit_NotDigitAsFilteringInput_ArgumentException()
{
int[] testData = new int[] { 7, 1, 2, 3, 4, 5, 6, 7, 68, 69, 70, 15, 17 };
Assert.Throws <ArgumentException>(() => DataManipulator.FilterDigit(testData, 47));
}
public void FilterDigit_EmptyCollection_ArgumentException()
{
Assert.Throws <ArgumentException>(() => DataManipulator.FilterDigit(new int[0], 7));
}
public void FilterDigit_NullCollection_ArgumentException()
{
Assert.Throws <ArgumentException>(() => DataManipulator.FilterDigit(null, 7));
}
