public static void FindIndex_ArrayEmpty_MinusOneReturned([Random(100)] int itemToSearch) { // Arrange var subject = new RecursiveBinarySearcher <int>(); var collection = new int[0]; // Act var actualIndex = subject.FindIndex(collection, itemToSearch); // Assert Assert.AreEqual(-1, actualIndex); }
public static void FindIndex_NullCollection_Throws() { // Arrange var subject = new RecursiveBinarySearcher <int>(); var collection = (IList <int>?)null; // Act Action act = () => subject.FindIndex(collection, 42); // Assert act.Should().Throw <ArgumentNullException>(); }
public static void FindIndex_ItemMissing_MinusOneReturned([Random(0, 1000, 10)] int n, [Random(-100, 1100, 10)] int missingItem) { // Arrange var subject = new RecursiveBinarySearcher <int>(); var random = Randomizer.CreateRandomizer(); var collection = Enumerable.Range(0, n).Select(x => random.Next(0, 1000)).Where(x => x != missingItem).OrderBy(x => x).ToList(); // Act var actualIndex = subject.FindIndex(collection, missingItem); // Assert Assert.AreEqual(-1, actualIndex); }
public static void FindIndex_ItemPresent_IndexCorrect([Random(1, 1000, 100)] int n) { // Arrange var subject = new RecursiveBinarySearcher <int>(); var randomizer = Randomizer.CreateRandomizer(); var selectedIndex = randomizer.Next(0, n); var collection = Enumerable.Range(0, n).Select(x => randomizer.Next(0, 1000)).OrderBy(x => x).ToList(); // Act var actualIndex = subject.FindIndex(collection, collection[selectedIndex]); // Assert Assert.AreEqual(collection[selectedIndex], collection[actualIndex]); }
public static void FindIndex_NullCollection_Throws() { // Arrange var subject = new RecursiveBinarySearcher <int>(); var collection = (IList <int>?)null; // Act TestDelegate actDelegate = () => { subject.FindIndex(collection, 42); }; // Assert Assert.Throws <ArgumentNullException>(actDelegate, "collection"); }