UngureanuSerg opened a new issue, #13948:
URL: https://github.com/apache/druid/issues/13948
Hi team,
A proposal to moving on after the adoption of java8+ is to start the
migration from junit4 to jnuit5.
- JUnit 4 never advanced beyond Java 7, missing out on a lot of features
from Java 8. JUnit 5 makes good use of the Java 8 features.
- A single jar library contains the entire framework. We need to import the
whole library, even when we only require a particular feature. In JUnit 5, we
get more granularity and can import only what's necessary.
- Only one test runner can execute tests at a time in JUnit 4 (e.g.
@RunWith(Parameterized.class)
or provide druid extension with the adoption of JUnit Platform). JUnit 5
allows multiple runners to work simultaneously.
As a strategy for the apporach I would suggest to migrate one module at a
time(it will be easier for the prs) and create tasks for the rest of the
modules. As a strating point we can still depend on JUnit Vintage for backward
compatibility with JUnit 4 but gradually moving to JUnit5.
I think all the point mentioned describes why it would be beneficial for
apache druid as well as I would like to pick this issue if hte rest of the
community is intrested.
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