[jira] [Reopened] (HBASE-23814) Add null checks and logging to misc set of tests

["Guanghao Zhang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-23814?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guanghao Zhang reopened HBASE-23814:
------------------------------------

Reopen for cherry-pick to branch-2.2.

> Add null checks and logging to misc set of tests
> ------------------------------------------------
>
>                 Key: HBASE-23814
>                 URL: https://issues.apache.org/jira/browse/HBASE-23814
>             Project: HBase
>          Issue Type: Test
>            Reporter: Michael Stack
>            Assignee: Michael Stack
>            Priority: Trivial
>             Fix For: 3.0.0-alpha-1, 2.3.0
>
>
> I've been studying unit tests of late. A few are failing but then the output is missing a detail or shutdown complains of NPE because startup didn't succeed.
> Here are super minor items I've been carrying around that I'd like to land. They do  not change the function of tests (there is an attempt at a fix of TestLogsCleaner).
> * TestFullLogReconstruction log the server we've chosen to expire and then note where we starting counting rows
> * TestAsyncTableScanException use a define for row counts; count 100 instead of 1000 and see if helps
> * TestRawAsyncTableLimitedScanWithFilter check connection was made before closing it in tearDown
> * TestLogsCleaner use single mod time. Make it for sure less than now in case test runs all in the same millisecond (would cause test fail)
> * TestReplicationBase test table is non-null before closing in tearDown



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