Added move zeros test

Author: xurten

CodingInterview/CodingInterview/Tests.cs

@@ -39,10 +39,33 @@ int[] LeaveTwoDuplicates(int[] arrayOfNumbers)
 
  int[] RemoveElement(int[] arrayOfNumbers, int elementToRemove)
  {
- return arrayOfNumbers.Where(element => element != elementToRemove)
+ return arrayOfNumbers
+ .Where(element => element != elementToRemove)
  .ToArray();
  }
 
+ int[] MoveZeros(int[] arrayOfNumbers)
+ {
+ var zeroCount = 0;
+ var listOfElements = new List<int>();
+ for(int index = 0; index < arrayOfNumbers.Length; index++)
+ {
+ var actualElement = arrayOfNumbers[index];
+ if (actualElement == 0)
+ {
+ zeroCount++;
+ }
+ else
+ {
+ listOfElements.Add(actualElement);
+ }
+ }
+ listOfElements
+ .AddRange(Enumerable.Range(1, zeroCount)
+ .Select(x => 0));
+ return listOfElements.ToArray();
+ }
+
  [Test]
  public void RemoveDuplicatesFromSortedArray_1()
  {
@@ -76,5 +99,16 @@ public void RemoveElement_3()
 
  Assert.AreEqual(expectedArrayWithElements, arrayWithRemoveElement);
  }
+
+ [Test]
+ public void MoveZeros_4()
+ {
+ var arrayWithZeros = new int[] { 1, 0, 5, 0, 0, 3};
+ var expectedArrayWithZerosInTheEnd = new int[] { 1, 5, 3, 0, 0, 0 };
+
+ var arrayWithRemoveElement = MoveZeros(arrayWithZeros);
+
+ Assert.AreEqual(expectedArrayWithZerosInTheEnd, arrayWithRemoveElement);
+ }
  }
 }