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https://issues.apache.org/jira/browse/SPARK-55443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Milicevic updated SPARK-55443:
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Summary: Types Framework - Phase 2 - Testing Framework (was: Phase 2 -
Testing Framework)
> Types Framework - Phase 2 - Testing Framework
> ---------------------------------------------
>
> Key: SPARK-55443
> URL: https://issues.apache.org/jira/browse/SPARK-55443
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 4.2.0
> Reporter: David Milicevic
> Priority: Major
>
> *Summary:*
> Build testing infrastructure for Ops implementations
> *Description:*
> Create testing utilities that make it easy to verify Ops implementations and
> enforce proper test coverage when new types are added through the framework.
> *What this includes:*
> * {{TypeOpsTestSuite}} base class for testing any Ops implementation -
> provides standardized tests for each interface (physical type consistency,
> external type roundtrip, format correctness, etc.)
> * Compliance checking - verify that all required interface methods are
> implemented and produce valid results
> * Test templates for new types - copy-paste skeletons that a developer fills
> in when adding a new type
> * Guidelines for what must be tested per interface
> *Example:*
> {code:java}
> abstract class TypeOpsTestSuite[T <: DataType] extends SparkFunSuite {
> def createOps(dt: T): TypeOps
> def sampleValues: Seq[(T, Any)]
> test("PhyTypeOps: getPhysicalType is consistent") { ... }
> test("ExternalTypeOps: roundtrip conversion") { ... }
> test("FormatTypeOps: format produces valid string") { ... }
> }{code}
> *Note:*
> The format and the exact design hasn't been fully thought out yet, so this is
> not final. Things might change as we finalize previous phases.
> *Design doc:*
> Linked in the parent work item.
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