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https://issues.apache.org/jira/browse/LUCENE-7037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15154487#comment-15154487
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Michael McCandless commented on LUCENE-7037:
--------------------------------------------
This is wonderful, thanks [~rcmuir]! I skimmed patch also, +1 to commit before
it goes too stale.
> Switch all exception tests to expectThrows()
> --------------------------------------------
>
> Key: LUCENE-7037
> URL: https://issues.apache.org/jira/browse/LUCENE-7037
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Robert Muir
> Attachments: LUCENE-7037.patch
>
>
> Tests expecting exceptions today are done in various ways.
> The best ones look like this.
> {code}
> try {
> something();
> fail("message");
> } catch (Exception expected) {
> assertSomethingAbout(expected);
> }
> {code}
> But there are many forms (involving booleans and such). All of these are a
> little sketchy because it is all-too easy to just forget the {{fail()}} and
> then the whole test is useless.
> `expectThrows` was added in LUCENE-7009 which solves a lot of these problems.
> Its not perfect, but overall a big improvement. We should cut over all of our
> tests.
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