I Develop WCF web services for enterprise project.I use NUnit testing in service logic business layer for test in server side and in client side I use WCFTestClient for invoke web services method.
I have to do automated test for my project,But I really don't know which approach is better?
I suggest you both. Service Logic testing is important from the perspective of the service as is, it must works just as expected and that's what you test.
Now, Client testing is also important from the perspective (as it names implies) of service clients. I mean, client testing helps you in the design of clear and usable service APIs. When you test what your service users will be doing you get another perspective of the situation.
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My issue it regarding creating a dummy WCF service which can be used at development side, when the REAL WCF service is not available or is down.
In my current assignment, the issue is that the web hosted WCF service from client is not always available for developer side. This hampers the development work as we are not able to verify/unit test the client side code.
Any solutions in sight? I have been searching /reading about mocking wcf with different available mocking frameworks, but still not clear about the right way.
Thanks in advance !
Without talking about frameworks - to call your srevice, you create client (proxy) instance, right?
You can move its generation to separate method, which will return your mock (injected by DI, injected by setter property in Unit test,. . .).
I want to create a restful web service that can accept json and returns json responses on a Windows server written in C#.
This particular service will actually have a long running background thread, so a WCF service hosted in IIS won't work (as far as I can tell, IIS will stop and restart the service on/after each request).
In general, I do not really even like WCF since I don't like dealing with generating proxy classes and updating service references down the road.
How can I accomplish this?
Well, with respect to WCF, is a technology already proven to help you build robust services, during your software design process you can design the service to keep state, hosting singleton instance, etc, so your impression of WCF services are somehow incomplete.
Now, regarding the restful approach, the technology used nowadays is called Web API, you can see some examples in the following website : http://www.asp.net/web-api , this will help you to avoid the tipical WSDL and generating proxies that you are talking about, and you can have bare-metal RESTful queries like "(http://myapp/orders/?id=1) that could return a json object with the orderid=1
Here you can have info for the instantiating mode in WCF services: http://msdn.microsoft.com/en-us/magazine/cc163590.aspx
hope it helps,
I have to integrate with a third-party web-service (behind firewall), and I do have their WSDL and proxy class.
I want to develop the client stuff outside the firewall.
What is the best approach to mock the web-service to ease integration with them?
Do I create a web-service project on my side? Somehow use their proxy classes ad mock the methods? This would create the service references so I can just change the target URL when the time comes.
Or do I create a service layer that returns mock classes in my dev. environment but would use real web-services at run-time?
The former approach would take a lot of work, I would think.
Any ideas?
With just the WSDL, you could host a mock service using soapUI.
I've used the latter approach to good effect in our projects. I've usually found that my apps use a subset of the functionality exposed by a given web service's API, to it's usually made good sense to expose a simpler API to my client code that's more streamlined and that reflects the workflow of my client better. So, since the way I typically use web services already involves writing an abstraction layer, replacing the endpoint on the other side of my adapter classes with a mock service is a very low-friction way to test interaction with the service.
I'm implementing a WCF web service based on WF. This web service consumes other web services which I'm not in charge of. So basically my service workflow contains several Send activities.
I'm following the TDD approach, so the service implementation is to be covered by unit tests. I want to test proper invocation of 3rd party services.
In a non-workflow case I would mock the external services via NMock. But in my case I cannot control the instantiation the workflow instance and I have no idea on how to trick the Send activities to use the mock objects instead of real services endpoints.
Although Unit Testing Workflows And Activities article on MSDN mentions mocks I couldn't find any complete example of mocking the remote end of Send activity.
Any idea on how to do that?
please try Moles framework. http://research.microsoft.com/en-us/projects/pex/
There are samples about how to mock the sharepoint service. I believe the same trick should apply to WF workflow.
I have tried to mock the sqlconnection, Entity framework, web service call, it works very neat. Basically, it can mock almost any .net objects.
Using ServiceAgents wrappers for your web services would be one possible way of doing it.
This is a pattern i have followed in previous projects of mine.
Since they are interface based, you can easily mock out the services.
There are other advantages to this pattern (besides unit testing) including being able to abstract your application from external dependencies to a certain extent. However it does add the overhead of creating another class layer on top of the services.
I have created a custom msmq service with WCF, which uses a custom binding as it needs to do some custom logic at the channel layer, where it calls another wcf service. The service is going to be a core pience of functionality for our systems for at the the next few years. i want to do what I can to make sure the service is robust, but, i'm not sure where to start. Ie testing the response, should I create a mock queue object? how do I test the service is calling another service ?
Best way I have found to unit test msmq services is to actually unit test the service implementation, then do an integration test using msmq with a mock repository. To see if writes are working.