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POWhats the best way to unit test from multiple threads?
 

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  1. POWhats the best way to unit test from multiple threads?
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    <p>this kind of follows on from another <a href="https://stackoverflow.com/questions/41290/file-access-strategy-in-a-multi-threaded-environment-web-app">question</a> of mine.</p> <p>Basically, once I have the code to access the file (will review the answers there in a minute) what would be the best way to <strong>test</strong> it?</p> <p>I am thinking of creating a method which just spawns lots of <a href="http://msdn.microsoft.com/en-us/library/system.componentmodel.backgroundworker.aspx" rel="nofollow noreferrer">BackgroundWorker</a>'s or something and tells them all load/save the file, and test with varying file/object sizes. Then, get a response back from the threads to see if it failed/succeeded/made the world implode etc.</p> <p>Can you guys offer any suggestions on the best way to approach this? As I said before, this is all kinda new to me :)</p> <h3>Edit</h3> <p>Following <a href="https://stackoverflow.com/questions/41568/whats-the-best-way-to-test-a-method-from-multiple-threads#41572">ajmastrean's</a> post:</p> <p>I am using a console app to test with Debug.Asserts :)</p> <hr> <h2>Update</h2> <p>I originally rolled with using <a href="http://msdn.microsoft.com/en-us/library/system.componentmodel.backgroundworker.aspx" rel="nofollow noreferrer">BackgroundWorker</a> to deal with the threading (since I am used to that from Windows dev) I soon realised that when I was performing tests where multiple ops (threads) needed to complete before continuing, I realised it was going to be a bit of a hack to get it to do this.</p> <p>I then followed up on <a href="https://stackoverflow.com/questions/41568/whats-the-best-way-to-unit-test-from-multiple-threads#41589">ajmastrean</a>'s post and realised I should really be using the <a href="http://msdn.microsoft.com/en-us/library/system.threading.thread(VS.80).aspx" rel="nofollow noreferrer">Thread</a> class for working with concurrent operations. I will now refactor using this method (albeit a different approach). </p>
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    1. USRob Cooper
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    1. COAre you using the Visual Studio test tools? or a third party tool, like NUnit or MbUnit? There are some very different patterns for multi-threaded tests for each. And for that matter, are you _unit testing_ or just putting a console app together for test purposes?
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      1. USAnthony Mastrean
 

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