[$60]Update unit tests dependency

[veshu]

Currently it requires database and es to run the unit tests. Such dependencies should be mocked.

[veshu]

Contest https://www.topcoder.com/challenges/30147466 has been created for this ticket.

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[veshu]

Contest https://www.topcoder.com/challenges/30147466 has been updated - it has been assigned to zxyding.

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[veshu]

@dengzikun got the following errors if I don't configure m2m token and for unit tests it should not require to be actual token. Please mock this API call.

[veshu]

Payment task has been updated: https://software.topcoder.com/review/actions/ViewProjectDetails?pid=30147466

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