Elegant code
time to read 7 min | 1359 words

I just like this code, so I thought I would publish it.

   1: public static class ArrayExtension
   2: {
   3:     public static T[] GetOtherElementsFromElement<T>(this T[] array , T element)
   4:     {
   5:         var index = Array.IndexOf(array, element);
   6:         if (index == -1)
   7:             return array;
   8:         return array.Skip(index + 1).Union(array.Take(index)).ToArray();
   9:     }
  10: }

And the unit test:

   1: public class ReplicationUnitTest
   2: {
   3:     [Fact]
   4:     public void Will_distribute_work_starting_with_next_node()
   5:     {
   6:         var nodes = new[] { 1, 2, 3 };
   7:         Assert.Equal(new[] { 3, 1 }, nodes.GetOtherElementsFromElement(2));
   8:         Assert.Equal(new[] { 1, 2 }, nodes.GetOtherElementsFromElement(3));
   9:         Assert.Equal(new[] { 2, 3 }, nodes.GetOtherElementsFromElement(1));
  10:         Assert.Equal(new[] { 1, 2, 3 }, nodes.GetOtherElementsFromElement(4));
  11:     }
  12: }
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