[Tests] Fix Reset tests.

Author: reegeek

src/StructLinq.Tests/AbstractEnumerableTests.cs

@@ -111,10 +111,10 @@ public void ShouldReturnSameSequenceWhenResetIsCall()
             List<T> FillList(IEnumerator<T> enumerator)
             {
                 var list = new List<T>();
-                enumerator.MoveNext();
-                list.Add(enumerator.Current);
-                enumerator.MoveNext();
-                list.Add(enumerator.Current);
+                while(enumerator.MoveNext())
+                {
+                    list.Add(enumerator.Current);
+                }
                 return list;
             }
         }

src/StructLinq.Tests/AbstractRefEnumerableTests.cs

@@ -111,10 +111,10 @@ public void ShouldReturnSameSequenceWhenResetIsCall()
             List<T> FillList(IEnumerator<T> enumerator)
             {
                 var list = new List<T>();
-                enumerator.MoveNext();
-                list.Add(enumerator.Current);
-                enumerator.MoveNext();
-                list.Add(enumerator.Current);
+                while (enumerator.MoveNext())
+                {
+                    list.Add(enumerator.Current);
+                }
                 return list;
             }
         }