[SPARK-26409] SQLConf should be serializable in test sessions

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.0, 3.0.0
• Fix Version/s: 2.4.1, 3.0.0
• Component/s: SQL, Tests
• Assignee: Gengliang Wang
• Reporter: Gengliang Wang
• Created: 19/Dec/18 17:07
• Updated: 20/Dec/18 20:17
• Resolved: 20/Dec/18 18:06

Description

`SQLConf` is supposed to be serializable. However, currently it is not serializable in `WithTestConf`. `WithTestConf` uses the method `overrideConfs` in closure, while the classes which implements it (`TestHiveSessionStateBuilder` and `TestSQLSessionStateBuilder`) are not serializable.

Use a local variable to fix it.

Issue Links

• links to: GitHub Pull Request #23352