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DZone > Java Zone > Improve Your JUnit Experience with This Annotation

Improve Your JUnit Experience with This Annotation

Bummed out that the order of your JUnit tests is all over the map? You're in luck! Check out this article to see how to make your testing life just a bit more manageable!

Lukas Eder user avatar by
Lukas Eder
·
Mar. 30, 16 · Java Zone · Tutorial
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JUnit is probably part of 90% of all Java projects. And the exciting thing is, we’ll soon have JUnit 5 with Java 8 support. We’ve blogged about an improvement recently.

Back in JUnit 4 land, there’s this little trick that I can only recommend you put in all of your unit tests. Just add this little annotation here and you’ll be much more happy:

@FixMethodOrder(MethodSorters.NAME_ASCENDING)
class MyTests {
    ...
}

What does it do? It’s simple. It fixes JUnit’s weird default of not defaulting to any testing order. Sure, not having any order in your tests might help accidentally discover some evil test inter-dependency. But usually, when you’re looking for individual tests and results, e.g. in your IDE, it’s just much better to be able to visually scan the test suite and find the right method.

E.g. what do you prefer? This?

junit-better








Or this?

junit-worse







Exactly. Finally, a useful annotation. Just put the following everywhere and help make this a slightly better world:

@FixMethodOrder(MethodSorters.NAME_ASCENDING)
class MyTests {
    ...
}
JUnit Annotation

Published at DZone with permission of Lukas Eder, DZone MVB. See the original article here.

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