Merge pull request #16 from ufcpp/fix-update

fix AddDuplicateBehavior.Update

Author: RobThree

KdTreeLib/KdTree.cs

@@ -78,7 +78,7 @@ public bool Add(TKey[] point, TValue value)
 
 							case AddDuplicateBehavior.Update:
 								parent.Value = value;
-								break;
+								return true;
 
 							default:
 								// Should never happen

KdTreeTestsLib/KdTreeTests.cs

@@ -117,11 +117,15 @@ public void TestAddDuplicateInUpdateMode()
 
 			var newValue = "I love chicken, I love liver, Meow Mix Meow Mix please deliver";
 
+			var olcCount = tree.Count();
+
 			tree.Add(testNodes[0].Point, newValue);
 
 			var actualValue = tree.FindValueAt(testNodes[0].Point);
+			var newCount = tree.Count();
 
 			Assert.AreEqual(newValue, actualValue);
+			Assert.AreEqual(olcCount, newCount);
 		}
 
 		[TestMethod]