Test cases in sails project raising exceptions

I am writing test cases using Mocha on Sails.js project. But on running npm test, it showing this error:

raw: Error [UsageError]: Could not run select() because of 2 problems:

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• "datastore" is required, but it was not defined.

• "models" is required, but it was not defined.

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Can anyone suggest how to fix this issue as because of this, I am not able to handle database from my test cases ? Please suggest.