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POfacade design pattern
 

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    <p>Lately I've been trying to follow the TDD methodology, and this results in lot of subclasses so that one can easily mock dependencies, etc.</p> <p>For example, I could have say a <code>RecurringProfile</code> which in turn has methods / operations which can be applied to it like <code>MarkAsCancel</code>, <code>RenewProfile</code>, <code>MarkAsExpired</code>, etc.. Due to TDD, these are implemented as 'small' classes, like <code>MarkAsCancelService</code>, etc.</p> <p>Does it make sense to create a 'facade' (singleton) for the various methods/operations which can be performed on say a <code>RecurringProfile</code>, for example having a class <code>RecurringProfileFacade</code>. This would then contain methods, which delegate code to the actual sub-classes, eg.:</p> <pre><code>public class RecurringProfileFacade { public void MarkAsCancelled(IRecurringProfile profile) { MarkAsCancelledService service = new MarkAsCancelledService(); service.MarkAsCancelled(profile); } public void RenewProfile(IRecurringProfile profile) { RenewProfileService service = new RenewProfileService(); service.Renew(profile); } ... } </code></pre> <p>Note that the above code is not actual code, and the actual code would use constructor-injected dependencies. The idea behind this is that the consumer of such code would not need to know the inner details about which classes/sub-classes they need to call, but just access the respective 'Facade'.</p> <p>First of all, is this the 'Facade' pattern, or is it some other form of design pattern?</p> <p>The other question which would follow if the above makes sense is - would you do unit-tests on such methods, considering that they do not have any particular business logic function?</p>
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    1. COprobably second method should be RenewProfile, not MarkAsCancelled?
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    2. COYes, my mistake - will edit.
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