public async Task ChangeAttribute_AddChanges()
{
await sut.ChangeAttribute("Foo", "bar", aggregateId, aggregateClassId,
entityId, entityClassId);
await sut.ChangeAttribute("Foo", "moo", aggregateId, aggregateClassId,
entityId, entityClassId);
changeTracker.ReceivedWithAnyArgs(1).AddChange <EntityAttributeChangeData <string> >(
null, null, null, null, null);
changeTracker.Received(1).AddChange(
Arg.Is <EntityAttributeChangeData <string> >(
x => x.AttributeName == "Foo" &&
x.NewValue == "moo" &&
x.OldValue == "bar"),
aggregateId, aggregateClassId, entityId, entityClassId);
}