public static void FindIndex_ArrayNull_ItemNull_ArgumentNullExceptionThrown(string[] sortedArray, string searchItem)
{
// Arranges
var searcher = new FibonacciSearcher <string>();
// Act
Action action = () => searcher.FindIndex(sortedArray, searchItem);
// Assert
action.Should().Throw <ArgumentNullException>();
}
public static void FindIndex_ArrayEmpty_MinusOneReturned([Random(1, 1000, 10)] int missingItem)
{
// Arrange
var searcher = new FibonacciSearcher <int>();
var sortedArray = Array.Empty <int>();
var expectedIndex = -1;
// Act
var actualIndex = searcher.FindIndex(sortedArray, missingItem);
// Assert
actualIndex.Should().Be(expectedIndex);
}
public static void FindIndex_ItemPresent_IndexCorrect([Random(1, 1000, 10)] int n)
{
// Arranges
var searcher = new FibonacciSearcher <int>();
var arrayToSearch = Helper.GetSortedArray(n);
var present = Helper.GetItemIn(arrayToSearch);
// Act
var actualIndex = searcher.FindIndex(arrayToSearch, present);
// Assert
arrayToSearch[actualIndex].Should().Be(present);
}
public static void FindIndex_ItemMissing_MinusOneReturned([Random(1, 1000, 10)] int n)
{
// Arranges
var searcher = new FibonacciSearcher <int>();
var arrayToSearch = Helper.GetSortedArray(n);
var present = Helper.GetItemNotIn(arrayToSearch);
var expectedIndex = -1;
// Act
var actualIndex = searcher.FindIndex(arrayToSearch, present);
// Assert
actualIndex.Should().Be(expectedIndex);
}