Migrate DDL sub-classes in spark-extensions to JUnit5 and AssertJ style

[tomtongue]

Migrate sub-classes in spark-extension to JUnit 5 along with #9613, and #9086.

For now, only one test TestAlterTablePartitionFields is updated with JUnit 5. Will add all DDL sub-classes in this PR.

Current progress

• TestAlterTablePartitionsFields
• TestAlterTableSchema
• TestBranchDDL
• TestReplaceBranch
• TestRequiredDistributionAndOrdering
• TestSetWriteDistributionAndOrdering
• TestTagDDL

TestViews will be separately created because of the code size (~ 1400 lines).

[nastra]

Will add all sub-classes in this PR

depending on the size of the diff it's also fine to split this into 2-3 PRs. You could probably start within a specific package and combine subclasses within one or more packages together in a PR (again depending on the size of the diff).

[tomtongue]

Sure, thank you for the suggestion. The size of diff would be a bit big if I gather all the diffs in extension package in this PR. So, I will separately create PRs, but first add relevant classes (like DDLs) into this PR. If I misunderstand, please correct me.

[tomtongue]

@nastra Change the following 7 DDL extensions to JUnit 5 and AssertJ style.

• TestAlterTablePartitionsFields
• TestAlterTableSchema
• TestBranchDDL
• TestReplaceBranch
• TestRequiredDistributionAndOrdering
• TestSetWriteDistributionAndOrdering
• TestTagDDL

For now Assertions.assertThatThrownBy is not changed, and not statically imported (assertThat is statically imported like other classes).

If I need to add more classes in this PR, please let me know.

[nastra]

why are these being removed?

[tomtongue]

The sql in this test is like ALTER TABLE catalog.db.tbl REPLACE BRANCH branch AS OF VERSION snapshotId RETAIN maxRefAge timeUnit. For this query, the minSnapshotsToKeep and maxSnapshotAgeMs are always null in the current impl. If the query has WITH SNAPSHOT RETENTION the parameters are filled. So I remove this part and change the tests to null checks.

[nastra]

ok thanks for confirming, no need to change anything as I think being explicit and making sure those are null is good in this case

[tomtongue]

thank you!

[nastra]

should be removed as well

[nastra]

this looks almost ready to go, just 2 comments. Also the diff size is about right for reviewing.

[tomtongue]

Thanks so much for the review. Will create a PR for other sub-classes.