public void TestConstrutorEmptySubscriptions()
{
var objectUnderTest =
new TestTopicViewModelBase(_ownerMock.Object, _itemMock.Object, new List <Subscription>());
Assert.AreEqual(_ownerMock.Object.DataSource, objectUnderTest.DataSource);
Assert.AreEqual(_ownerMock.Object.Context, objectUnderTest.Context);
Assert.AreEqual((object)_itemMock.Object, objectUnderTest.Item);
Assert.AreEqual(((ICloudExplorerItemSource)objectUnderTest).Item, objectUnderTest.Item);
objectUnderTest.AssetOwnerEquals(_ownerMock.Object);
Assert.AreEqual(0, objectUnderTest.Children.Count);
}