Recently found one of my test failing due to my inmemory SQLite  database not enforcing foreign key constrains. Googled around and found a solution for it, reposting that solution here so i can easily find it in the future, and that other people can more easily find a copy-pastable solution.   Put the following code in your AppServiceProvider file within the boot() method:   Source: https://stackoverflow.com/questions/31228950/laravel-5-1-enable-sqlite-foreign-key-constraints
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