public void When_Collection_Is_Empty_BinarySearch_Return_Negative_Index()
{
var emptyCollection = new int [0];
var result = BinarySearchService.SearchItem(new int[0], 12);
Assert.True(result < 0);
}
public void When_SortedCollection_Given_BinarySearch_Return_Index_of_TargetItem()
{
var collection = new int[3] {
1, 2, 4
};
var result = BinarySearchService.SearchItem(collection, 4);
Assert.True(result > 0);
Assert.True(result == 2);
}