Telerik blogs
  • Productivity Testing

    Mocking Constructors with JustMock

    In .NET there are two types of constructors, instance constructors and static constructors. Instance constructors are called when objects are instantiated, while static constructors get called before any member of the class is invoked for the first time.
    December 13, 2012
  • Productivity

    Slides, Source Code and Video to the “Getting Started with JustMock” Webinar Now Available

    Chris and I wanted to thank you all for attending the “Getting Started with JustMock” webinar. The slides, source code and recorded video are now available for you to explore. If you have any questions, then feel free to leave a comment below or send us an email/tweet. I encourage you to go ahead and download your own copy of JustMock and start experiencing Fast, Fluid Unit Testing for yourself. WEBINAR MATERIALS Slides, Source Code and the Recorded Webinar Video is now available for you to enjoy.
    December 06, 2012
  • Productivity

    Future Mocking

    Mocking legacy code is hard. Especially, if it’s a third-party library and you have little control over how it’s written. It is even more difficult to unit test a type that is instantiated internally. One can argue that it should be refactored to accept dependencies via constructor injection.  However, constraints such as time, budget, experience with the offending code, or even access to the source often prevent paying down the technical debt accumulated in these legacy systems.   This post will show you how to mock an external library (concept) where it calls a login service class that cannot be sent...
    November 21, 2012
  • Productivity

    Mocking LINQ Queries

    Unit testing LINQ queries can be really challenging. This requires a deep knowledge of how LINQ queries work and how they filter results based on predicate values.  While I am adopting test first development approach, it is most likely that I want to verify the behavior of a query for correctness. In this post, I will show how easy it is to mock a LINQ query using JustMock for a given context. First, let me build up the context with a simple entity class for Employee that has two properties: Next, I created a dummy context that inherits the LINQ to SQL...
    November 02, 2012
  • Productivity

    Abstracting Dependencies with JustMock

    Unit tests are most effective when the System Under Test is isolated from its dependencies.  The best way to isolate your code (and make your code more SOLID) is through dependency injection. But even if you follow the rules of SOLID and inject all of the necessary dependencies in as interfaces, you are still faced with the fact that you depend on them. In order to test your code, something concrete has to be passed into the code in order for it to even compile.  Your production code will most likely use a factory to create concrete instances of the dependent interfaces, but that...
    October 31, 2012