Liam Sharp created SUREFIRE-2088:
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Summary: Split test into chunks and select chunk to run
Key: SUREFIRE-2088
URL: https://issues.apache.org/jira/browse/SUREFIRE-2088
Project: Maven Surefire
Issue Type: New Feature
Components: Maven Surefire Plugin
Reporter: Liam Sharp
A lot of CI environments (GitHub Actions/Circle CI etc) charge by the minute.
So running tests across multiple boxes costs very little more than 1 box, but
gives results back much quicker.
I've love to be able to do some thing like:
mvn tests -Dsurefire.chunks=10 -Dsurefire.chunk=1
Which I could run on box 1 of 10, then
mvn tests -Dsurefire.chunks=10 -Dsurefire.chunk=2
on box 2, etc etc.
I've seen solutions that involved code outside of maven looking at JUnit test
results and producing a files to pass in -Dsurefire.excludesFile on each of the
boxes. This solution requires state from previous runs and code outside of
surefire. I think being able to do this completely in the surefire plugin would
be a great enhancement. User could provide the chunks/chunk values, and then
optionally (as a plus plus feature) some test results that give timings to
allow more even test distribution across the chunks.
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