Matt Sicker created LOG4J2-2653:
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Summary: Migrate to JUnit 5
Key: LOG4J2-2653
URL: https://issues.apache.org/jira/browse/LOG4J2-2653
Project: Log4j 2
Issue Type: Improvement
Components: Tests
Affects Versions: 3.0.0
Reporter: Matt Sicker
JUnit 5 has a ton of neat features that make writing tests easier and more
expressive. It provides a compatibility layer for JUnit 4 and 3, so we should
be able to migrate pretty easily there.
In order to migrate v4 tests to v5, we'll need to support the following:
* LoggerContextRule should be converted into a ParameterResolver
[extension|https://junit.org/junit5/docs/current/user-guide/#extensions] which
injects a LoggerContext parameter among other types.
* Test categories should be converted to
[tags|https://junit.org/junit5/docs/current/user-guide/#writing-tests-tagging-and-filtering].
* {{@Ignore}} should be replaced with {{@Disabled}} or appropriate conditional
disabled annotations (also useful for replacing assumeThat() tests).
* Hamcrest must be added as an explicit dependency and/or replaced by something
better like AssertJ.
* The other test annotations need to be updated to the new ones.
* Parameterized tests can use the new parameters annotations to simplify things
a lot.
* TemporaryFolder rule can be replaced with {{@TempDir}} parameter injection
(experimental feature).
* Other rule usage needs to be converted to use appropriate v5 features or
turned into extensions.
Note that this upgrade can only happen in the 3.x branch as JUnit 5 requires
Java 8.
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