variance_test partial clean-up

remove some (but not all yet!) tuple mis-use, and revamp the code a lot.
Factorize some common chores into MainTestClass.

Change-Id: Ia14f3924140e8545e4f10d0504475681baae8336
This commit is contained in:
skal 2016-07-13 17:33:22 -07:00 committed by Pascal Massimino
parent 3386ca7496
commit f993ed5c86

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