weiminyu a80a44cd06 Define TestRule that manages cache use in tests ...

All current tests that use caches with custom data expiry values
now restore the default config when teardown. We need to prevent
new unsafe uses from being introduced.

Restoration code have also been added to a few other tests that modifies
static fields.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=228888041

2019-01-11 11:50:33 -05:00

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Define TestRule that manages cache use in tests

2019-01-11 11:50:33 -05:00