Closing lock and returning bike speeded up.

TestShareeLib/ViewModel/TestViewModelHelper.cs

@@ -1,5 +1,6 @@
 using NSubstitute;
 using NUnit.Framework;
+using System;
 using TINK.Model.Bikes.Bike.BC;
 using TINK.ViewModel;
 
@@ -91,5 +92,37 @@ namespace TestShareeLib.ViewModel
                 bike.GetDisplayId(),
                 Is.EqualTo(""));
         }
+
+        [Test]
+        public void TestGetErrorMessage_Null()
+        {
+            Assert.That(
+                ViewModelHelper.GetErrorMessage(null),
+                Is.Empty);
+        }
+
+        [Test]
+        public void TestGetErrorMessage_Ex()
+        {
+            Assert.That(
+                new Exception("Ja toll").GetErrorMessage(),
+                Is.EqualTo("Ja toll"));
+        }
+
+        [Test]
+        public void TestGetErrorMessage_Aggregate_One()
+        {
+            Assert.That(
+                new AggregateException(new Exception("Oh yes")).GetErrorMessage(),
+                Is.EqualTo("Oh yes"));
+        }
+
+        [Test]
+        public void TestGetErrorMessage_Aggregate_Two()
+        {
+            Assert.That(
+                new AggregateException(new Exception("Oh yes"), new Exception("Oh no")).GetErrorMessage(),
+                Is.EqualTo("One or more errors occurred.\r\nOh yes\r\nOh no"));
+        }
     }
 }