[SPARK-9428] Add test cases for null inputs for expression unit tests

• Type: Sub-task
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 1.5.0
• Component/s: SQL
• Target Version/s: 1.5.0
• Sprint: Spark 1.5 release
• Assignee: Yijie Shen
• Reporter: Yijie Shen
• Created: 29/Jul/15 05:37
• Updated: 30/Jul/15 06:24
• Resolved: 30/Jul/15 06:24

Description

We need to audit expression unit tests to make sure we pass in null inputs to test null behavior.

Issue Links

• links to: [Github] Pull Request #7748 (yjshen)