Andrey Stepachev created HBASE-13004:
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Summary: Make possible to explain why HTU.waitFor fails
Key: HBASE-13004
URL: https://issues.apache.org/jira/browse/HBASE-13004
Project: HBase
Issue Type: Bug
Components: test
Affects Versions: 2.0.0
Reporter: Andrey Stepachev
Assignee: Andrey Stepachev
Priority: Minor
HBaseTestingUtility has good methods for waiting conditions, but with one
drawback, when waitfor fails, there is no way to explain what happened (fail()
called from internals and that is not very easy to intercept and explain state
of failure).
That would be great to have enhanced Predicate which can explain state after it
failed to wait for.
That can looks like
{code}
HUT.waitFor(10000, new ExplainingPredicate() {
boolean evaluate() {
... some evaluation code
}
String explain() {
... generate brief explanation of what to be expected, but not happened
}
}
{code}
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