This CL deduplicates these two methods in DomainTransferRequestFlowTest:
- assertHistoryEntriesContainTransferBillingEventsOrGracePeriods()
- assertHistoryEntriesDoNotContainTransferBillingEventsOrGracePeriods()
Instead, we have one method with an extra parameter dictating whether or not
we should expect a transfer billing event (yes normally, no in the case of a
superuser transfer w/ 0 period). This is less code overall and avoids drift
between the normal vs special case assertions (if people make changes in one
but forget to do so in the other).
Also, the methods as named were a little confusing because the "Contain" vs
"DoNotContain" naming suggests that the methods are asserting opposite things,
but actually they assert some things in common (like the existence of autorenew
billing events, and that pre-transfer grace periods are cleared).
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Created by MOE: https://github.com/google/moe
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