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Testing asynchronous code: async vs fake async
In the last post I explored implementing a mock which tested asynchronous code in a “fake” asynchronous way, and I promised to dive a little deeper into that concept and compare it with testing in an asynchronous way.
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HttpClient and Unit Testing
If you’ve written C# which uses
HttpClientand tried to unit test it, you probably noticed that it’s not the easiest thing in the world to mock out. If this github issue is any indication, many developers don’t find it particularly easy either. It’s certainly not impossible, but it requires learning about some of the internals ofHttpClient, such asHttpMessageHandleras theHttpClientis designed as just a wrapper around these things.