# IT:AD:XUnit:HowTo:DisableTestParallelization #

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<panel title="Summary">

XActLib's tests run into trouble when running in parallel. It's because one test is rebuilding a new Inversion of Control Container (ie Unity) and ServiceLocator -- by destroying any previous one -- while another test was expecting it to be there. A bit of an issue...


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## Process ##

One way to solve it is to turn off parallelization.

<sxh>
using XUnit;
...
[assembly: CollectionBehavior(DisableTestParallelization = true)]
</sxh>



## Resources ##

* http://xunit.github.io/docs/running-tests-in-parallel.html