[FLINK-18001] Add a new test base for evaluating expressions

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.0
• Component/s: Table SQL / Planner
• Labels: pull-request-available
• Assignee: Timo Walther
• Reporter: Timo Walther
• Created: 28/May/20 10:32
• Updated: 31/May/20 09:59
• Resolved: 31/May/20 09:59

Description

The current `ExpressionTestBase` has many shortcomings. It uses the old type system and does not easily allow for testing errors. We should introduce a new test base that makes defining tests easier and works with the new type system.

Issue Links

• links to: GitHub Pull Request #12379