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https://issues.apache.org/jira/browse/CASSANDRA-19479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jacek Lewandowski updated CASSANDRA-19479:
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Test and Documentation Plan: regression tests
Status: Patch Available (was: In Progress)
> Provide tests for type compatibility between 4.1 and 5.0
> --------------------------------------------------------
>
> Key: CASSANDRA-19479
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19479
> Project: Cassandra
> Issue Type: Task
> Components: Test/unit
> Reporter: Jacek Lewandowski
> Assignee: Jacek Lewandowski
> Priority: Normal
> Fix For: 4.0.13, 4.1.5, 5.0, 5.1
>
>
> This is a part of CASSANDRA-14476 - we should verify whether the type
> compatibility matrix is upgradable from 4.0 and 4.1 to 5.0, and if not, fix
> the remaining issues.
> The implemented tests verify the following:
> - assumed compatibility between primitive types
> - equals method symmetricity
> - freezing/unfreezing
> - value compatibility by using a serializer of one type to deserialize a
> value serialized using a serializer of another type
> - serialization compatibility by serializing a row with a column of one type
> as a column of another type for simple and complex cells (multicell types)
> - (comparison) compatibility by comparing serialized values of one type using
> a comparator of another type; for multicell types - build rows and compare
> cell paths of a complex type using a cell path comparator of another complex
> type
> - verify whether types that are (value/serialization/comparison) compatible
> in a previous release are still compatible with this release
> - store the compatibility matrix in a compressed JSON file so that we can
> copy it to future releases to assert backward compatibility (similar approach
> to LegacySSTableTest)
> Additionally, the equals method in TupleType and UserType was fixed to be
> symmetric. Previously, comparing two values gave a different outcome when
> inverted.
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