The checkstyle rule would just ban certain imports.
We'd add exclusions for all existing usages as we did when introducing other rules.
So far we usually disabled checkstyle rules for a specific files.

On 25/04/2023 16:34, Piotr Nowojski wrote:
+1 to the idea.

How would this checkstyle rule work? Are you suggesting to start with a
number of exclusions? On what level will those exclusions be? Per file? Per
line?

Best,
Piotrek

wt., 25 kwi 2023 o 13:18 David Morávek <d...@apache.org> napisał(a):

Hi Everyone,

A long time ago, the community decided not to use Mockito-based tests
because those are hard to maintain. This is already baked in our Code Style
and Quality Guide [1].

Because we still have Mockito imported into the code base, it's very easy
for newcomers to unconsciously introduce new tests violating the code style
because they're unaware of the decision.

I propose to prevent Mockito usage with a Checkstyle rule for a new code,
which would eventually allow us to eliminate it. This could also prevent
some wasted work and unnecessary feedback cycles during reviews.

WDYT?

[1]

https://flink.apache.org/how-to-contribute/code-style-and-quality-common/#avoid-mockito---use-reusable-test-implementations

Best,
D.


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