DockerFileUtilTest : Use JUnit5's @TempDir annotation for creating temporary directories

[rohanKanojia]

Component

JKube Kit

Task description

Description

We are creating temporary directories for testing like this here

https://github.com/eclipse/jkube/blob/b64915ec6090dcb0171e45b6372052278210e6f3/jkube-kit/build/api/src/test/java/org/eclipse/jkube/kit/build/api/helper/DockerFileUtilTest.java#L83-L84

We should probably refactor this code to use @TempDir annotation . There are already some tests using this annotation, maybe make this a member level field.

Expected Behavior

Files.createTempDirectory is replaced with @TempDir annotation field

Acceptance Criteria

• Files.createTempDirectory is replaced with @TempDir annotation field
• Instead of new FileOutputStream(ret) use Files.newOutputStream(ret.toPath())

[RISHIKESHk07]

@rohanKanojia would luv give it a try ?

[rohanKanojia]

@RISHIKESHk07 : Are you contributing for the first time ? If that's the case maybe you want to look into first-timers-only tagged issues https://github.com/eclipse/jkube/issues?q=is%3Aissue+is%3Aopen+label%3Afirst-timers-only

[clarenced]

If no one is working on this issue, I can provide some help with this one. :)