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JUnit4 has @FixMethodOrder annotation which allows to use alphabetical order of test methods execution. Is there analogous JUnit5 mechanism?
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OrderAnnotation , you'll see: MethodOrderer that sorts methods based on the @Order annotation. Any methods that are assigned the same order value will be sorted arbitrarily adjacent to each other. Any methods not annotated with @Order will be assigned a default order value of Integer.
JUnit 5: @TestMethodOrder, @Order, Interface MethodOrderer. To control the order of execution of tests, the below entities help do the same: The annotation @TestMethodOrder. The annotation @Order.
In general, you can't specify the order that separate unit tests run in (though you could specify priorities in TestNG and have a different priority for each test). However, unit tests should be able to be run in isolation, so the order of the tests should not matter.
Edit: JUnit 5.4 is officially released now, so no need to use snapshots anymore.
This is now possible with JUnit 5.4.
https://junit.org/junit5/docs/current/user-guide/#writing-tests-test-execution-order
To control the order in which test methods are executed, annotate your test class or test interface with @TestMethodOrder and specify the desired MethodOrderer implementation. You can implement your own custom MethodOrderer or use one of the following built-in MethodOrderer implementations.
Alphanumeric: sorts test methods alphanumerically based on their names and formal parameter lists.
OrderAnnotation: sorts test methods numerically based on values specified via the @Order annotation.
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No, not yet. For unit tests, execution order should be irrelevant. For more complex tests, JUnit is aiming to provide explicit support - test ordering would be part of that.
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