Issue 5480 - DataFusion CLI tests

[m09526]

Make sure you have checked all steps below.

Issue

• My PR fully resolves the following issues. I've referenced an issue in the PR title, for example "Issue 1234 - My
  Feature". Note that before an issue is finished, you can still make a pull request by raising a separate issue
  for your progress.
  • Resolves Write some tests for DataFusion query CLI #5480

Tests

• My PR adds the following tests based on our test strategy OR does not need testing for this extremely good reason:
  • Unit tests for query clil debugging tool

Documentation

• In case of new functionality, my PR adds documentation that describes how to use it, or I have linked to a
  separate issue for that below.
• If I have added new Java code, I have added Javadoc that explains it following our conventions and style.
• If I have added or removed any dependencies from the project, I have updated the NOTICES file.

[patchwork01]

Looks fine assuming the intention of the issue was just for the validation of command line arguments.

I've commented on the PR this is stacked on about testing the implementation.

Note that we can't merge this until the base PR is merged.