public void When_ExtendedWithANonCollidingCollection_Then_BoughTagCollectionJoined()
{
var deltaCollection = TagsCollection
.New()
.SetTag("01", "01")
.SetTag("02", "02");
var extendedCollection = tagsCollection.ExtendWith(deltaCollection);
Assert.IsTrue(extendedCollection.ContainsKey(TagsCollection.HOST));
Assert.IsTrue(extendedCollection.ContainsKey("01"));
Assert.IsTrue(extendedCollection.ContainsKey("02"));
}