[ARROW-16538] [Java] Refactor FakeResultSet to support arbitrary tests

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 8.0.0
• Fix Version/s: 9.0.0
• Component/s: Java
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/31899
• Assignee: Todd Farmer
• Reporter: Todd Farmer
• Created: 11/May/22 20:20
• Updated: 11/Jan/23 11:44
• Resolved: 13/May/22 12:13

Description

The existing FakeResultSet used in tests of the JDBC adapter is challenging to use to build arbitrary ResultSets - such as would be useful in dealing with issues like ARROW-16427.  Converting this to a more generic utility to build mock ResultSets would enable testing of JDBC vendor-specific behavior that is discovered, without actually referencing those drivers within test code.  Finally, it would be useful to more such a utility to a general class, leaving just the test code in the existing test class.

Issue Links

• is related to: ARROW-16427 [Java] jdbcToArrowVectors / sqlToArrowVectorIterator fails to handle variable decimal precision / scale
• links to: GitHub Pull Request #13123