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Changing App.Config on the fly for unit testing

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14 Jun 2011CPOL
An alternative is to abstract the settings that you intend to use.So instead of changing your app.config on the fly, simply change a mock or the instance values of the configuration object.For example:public interface IApplicationConfiguration{ string MaybeAFolderINeed { get; } ...

An alternative is to abstract the settings that you intend to use.


So instead of changing your app.config on the fly, simply change a mock or the instance values of the configuration object.


For example:


public interface IApplicationConfiguration
{
    string MaybeAFolderINeed { get; }
    string MyConnectionString { get; }
}

Then you could mock it and return the relevant values.


public class ClassRequiringConfig
{
    public ClassRequiringConfig(IApplicationConfiguration configuration) { ... }
    public ClassRequiringConfig()
           : this(new DefaultApplicationConfigurationImpl()) { ... }
}

Just a thought.

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EbenRoux
Architect
South Africa South Africa
If you are interested in Domain-Driven Design you may be interested in my [Hard Edges](https://www.amazon.com/Hard-Edges-Practical-Domain-Driven-Design-ebook/dp/B076W428NG) book.

I also have a [YouTube channel](https://www.youtube.com/channel/UCtaK4nTyVCs7rc5uEul6zZw) and some repositories over on [GitHub](https://github.com/Shuttle).

Documentation:

- [Shuttle.Esb service bus](http://shuttle.github.io/shuttle-esb/)
- [Shuttle.Core infrastructure / service hosting](http://shuttle.github.io/shuttle-core/)
- [Shuttle.Recall event sourcing (experimental)](http://shuttle.github.io/shuttle-recall/)

I have over 20 years of experience in the professional arena as a developer, consultant, and architect within many industries and have provided strategies and solutions that have contributed to the successful implementation of various systems. I believe firmly in the development of quality software that empowers users to get their job done.

My current focus is on domain-driven design implemented within an event-driven architecture based on message-oriented middle ware.

Comments and Discussions

 
GeneralThis is a good solution in case if you start creating unit t... Pin
NeoPunk18-Jun-11 22:13
MemberNeoPunk18-Jun-11 22:13 

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Posted 14 Jun 2011

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