public void SameListDifferentInstanceScenarioShouldFail()
        {
            var list = new List<int> { 1, 2, 3 };
            var equalListWithDifferentRef = new List<int> { 1, 2, 3 };
            Verify.ShouldFail(() =>
list.ShouldBeSameAs(equalListWithDifferentRef),

errorWithSource:
@"list
    should be same as
[1, 2, 3]
    but was
[1, 2, 3]
    difference
[1, 2, 3]",

errorWithoutSource:
@"[1, 2, 3]
    should be same as
[1, 2, 3]
    but was not
    difference
[1, 2, 3]");
        }
 protected override void ShouldThrowAWobbly()
 {
     var list = new List<int> { 1, 2, 3 };
     var equalListWithDifferentRef = new List<int> { 1, 2, 3 };
     list.ShouldBeSameAs(equalListWithDifferentRef);
 }