tree bffc010b45ee9d382975e4991145bec15a28a2c3
parent a7a2b8abfbec897a18207833ec5491c55883eb01
author Kevin Han <kevhan@google.com> 1655414730 -0700
committer Kevin Han <kevhan@google.com> 1655417485 +0000

Unify date truncation logic in PermissionChange code

Tests were intermittently failing because we were using Instant to
truncate the date which always assumes GMT time. Meanwhile, the date
instances we made would be in the default timezone.

Everything works fine when the devices stay in GMT but if they ever
changed, there would be a discrepancy causing the truncation to truncate
to GMT day borders which would not match the expected default timezone
borders.

We fix this by doing the same thing we do in the serialize logic,
truncating via the formatter itself, ensuring that we truncate at day
granularity for the test's expected timezone.

Bug: 235636205
Test: Change DuT timezone. atest PermissionChangeStorageImplTest
Change-Id: I5a445715a94b10b88b285970cda654a94edfca30