back-compat tests ("ant test-tag") should test JAR drop-in-ability
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Key: LUCENE-1529
URL: https://issues.apache.org/jira/browse/LUCENE-1529
Project: Lucene - Java
Issue Type: New Feature
Components: Build
Affects Versions: 2.9
Reporter: Michael McCandless
Priority: Minor
Fix For: 2.9
We now test back-compat with "ant test-tag", which is very useful for
catching breaks in back compat before committing.
However, that currently checks out "src/test" sources and then
compiles them against the trunk JAR, and runs the tests. Whereas our
back compat policy:
http://wiki.apache.org/lucene-java/BackwardsCompatibility
states that no recompilation is required on upgrading to a new JAR.
Ie you should be able to drop in the new JAR in place of your old one
and things should work fine.
So... we should fix "ant test-tag" to:
* Do full checkout of core sources & tests from the back-compat-tag
* Compile the JAR from the back-compat sources
* Compile the tests against that back-compat JAR
* Swap in the trunk JAR
* Run the tests
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