Add tests.iter.min to improve controlling tests.iter's behavior
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                 Key: LUCENE-3002
                 URL: https://issues.apache.org/jira/browse/LUCENE-3002
             Project: Lucene - Java
          Issue Type: Test
          Components: Tests
            Reporter: Shai Erera
            Assignee: Shai Erera
            Priority: Minor
             Fix For: 3.2, 4.0


As discussed here: 
http://lucene.472066.n3.nabble.com/Stop-iterating-if-testsFailed-td2747426.html,
 this issue proposes to add tests.iter.min in order to allow one better control 
over how many iterations are run:

* Keep tests.iter as it is today
* Add tests.iter.min (default to tests.iter) to denote that at least N 
instances of the test should run until there's either a failure or tests.iter 
is reached.

If one wants to run until the first failure, he can set tests.iter.min=1 and 
tests.iter=X -- up to X instances of the test will run, until the first failure.

Similarly, one can set tests.iter=N to denote that at least N instances should 
run, regardless if there were failures, but if after N runs a failure occurred, 
the test should stop.

Note: unlike what's proposed on the thread, tests.iter.max is dropped from this 
proposal as it's exactly like tests.iter, so no point in having two similar 
parameters.

I will work on a patch tomorrow.

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