[infinispan-issues] [JBoss JIRA] (ISPN-2034) Add backwards serialization compatibility tests

[Galder Zamarreño (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-2034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12789287#comment-12789287 ] 

Galder Zamarreño commented on ISPN-2034:
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Regardless of rolling upgrades, without any tests we run risk of having issues such as ISPN-3311. We should at least have test to verify marshalling at the level of minor versions. We should target this from 6.0 onwards, good time to get it implemented now. I already some prep work before ([see 2034 archive tags|https://github.com/galderz/infinispan/tags])
                
> Add backwards serialization compatibility tests
> -----------------------------------------------
>
>                 Key: ISPN-2034
>                 URL: https://issues.jboss.org/browse/ISPN-2034
>             Project: Infinispan
>          Issue Type: Enhancement
>          Components: Marshalling
>            Reporter: Galder Zamarreño
>            Assignee: Galder Zamarreño
>              Labels: compatibility
>
> Take each existing minor branch, i.e. 4.1.x, 4.0.x,...etc and modify VersionAwareMarshallerTest so that payloads are stored in a data file.
> Then, take data files for each branch and store in git (master and 5.1.x), and try reading them with the existing externalizer/marshalling set up.
> It should work...

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