[hibernate-dev] [Hibernate Search] Added a test utility to assert produced log

[Sanne Grinovero]

On 4 November 2016 at 14:27, Steve Ebersole <steve at hibernate.org> wrote:
> I think we should consider creating a set of generic testing utils as a
> separate project.  Things like LoggerInspectionRule, @ExpectedFailure,
> @BeforeClassOnce, @AfterClassOnce, @Skip, etc are generally useful I find

+1 for the general testing utilities, however the LoggerInspectionRule
will move into a JBoss Logger utility as it's useful for anyone using
JBoss Logger.


> On Fri, Nov 4, 2016 at 9:16 AM Sanne Grinovero <sanne at hibernate.org> wrote:
>>
>> Nice trick!
>>
>> I didn't know about the Log4j feature, but had created something
>> similar for JBoss Logging; it's in the ORM project though so not
>> easily reusable in all of Search components:
>>  - org.hibernate.testing.logger.LoggerInspectionRule
>>
>> On 4 November 2016 at 13:41, Yoann Rodiere <yoann at hibernate.org> wrote:
>> > Hi team,
>> >
>> > Just so you know, if you ever need to assert that a certain log is
>> > produced
>> > in your JUnit tests, there's now a tool to do just that in Hibernate
>> > Search: org.hibernate.search.test.util.impl.ExpectedLog4jLog [1]
>> >
>> > You may use it much like you would use the ExpectedException rule:
>> >
>> > public class MyTest {
>> > @org.junit.Rule
>> > public ExpectedLog4jLog logged = ExpectedLog4jLog.create();
>> >
>> > @Test
>> > public void test() {
>> > logged.expectMessage( "HSEARCH400032", "some substring I want in the
>> > same
>> > log" );
>> >
>> > // ... Do test ...
>> > }
>> > }
>> >
>> > You can also assert more complex conditions on the logs, using
>> > a org.hamcrest.Matcher<? extends LoggingEvent>, but then it's starting
>> > to
>> > get a bit exotic.
>> >
>> > You may find an example of real-life use at [2].
>> >
>> > [1]
>> >
>> > https://github.com/hibernate/hibernate-search/blob/master/engine/src/test/java/org/hibernate/search/test/util/impl/ExpectedLog4jLog.java
>> > [2]
>> >
>> > https://github.com/hibernate/hibernate-search/blob/master/elasticsearch/src/test/java/org/hibernate/search/elasticsearch/test/ElasticsearchUnsupportedFeaturesIT.java
>> >
>> > Cheers,
>> >
>> > Yoann Rodière <yoann at hibernate.org>
>> > Hibernate NoORM Team
>> > _______________________________________________
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>> > hibernate-dev at lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/hibernate-dev
>>
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