[FLINK-33455] Implement restore tests for SortLimit node

[bvarghese1]

What is the purpose of the change

Implement restore tests for SortLimit node

Verifying this change

This change added tests and can be verified as follows:

• Added restore tests for SortLimit node which verifies the generated compiled plan with the saved compiled plan

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (no)
• The public API, i.e., is any changed class annotated with @Public(Evolving): (no)
• The serializers: (yes / no / don't know)
• The runtime per-record code paths (performance sensitive): (no)
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (no)
• The S3 file system connector: (no)

Documentation

• Does this pull request introduce a new feature? (no)
• If yes, how is the feature documented? (not applicable)

[flinkbot]

CI report:

• 3370d6b Azure: SUCCESS

Bot commands

The @flinkbot bot supports the following commands:

• @flinkbot run azure re-run the last Azure build

[dawidwys]

@flinkbot run azure

[dawidwys]

One more thing I just noticed (actually it's also a problem for Calc tests) that we should not put those classes/tests in org.apache.flink.table.planner.plan.nodes.exec.testutils. This package is fine for RestoreTestBase as it is a testutils, but concrete tests don't fit in here.

I don't have a concrete proposal yet, but we should think of a better structure.

[bvarghese1]

One more thing I just noticed (actually it's also a problem for Calc tests) that we should not put those classes/tests in org.apache.flink.table.planner.plan.nodes.exec.testutils. This package is fine for RestoreTestBase as it is a testutils, but concrete tests don't fit in here.

I don't have a concrete proposal yet, but we should think of a better structure.

Can we reuse org.apache.flink.table.planner.plan.nodes.exec.stream since we are removing tests from that package?

[dawidwys]

Can we reuse org.apache.flink.table.planner.plan.nodes.exec.stream since we are removing tests from that package?

Yes, let's do that

[jnh5y]

Can we reuse org.apache.flink.table.planner.plan.nodes.exec.stream since we are removing tests from that package?

Yes, let's do that

Should the Programs and Tests go into separate packages?

[dawidwys]

Should the Programs and Tests go into separate packages?

For the time being lets keep them in the same package so that we don't overcompilcate things.

[dawidwys]

Good job! Looks really good!