Falko Modler created SUREFIRE-882:
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Summary: Fork x parallel JVMs once
Key: SUREFIRE-882
URL: https://jira.codehaus.org/browse/SUREFIRE-882
Project: Maven Surefire
Issue Type: New Feature
Components: process forking
Affects Versions: 2.12
Reporter: Falko Modler
In 2.12 a new forkMode "perthread" was introduced, which (in conjunction with
parallel!=none) behaves like a parallel "always"-forkMode.
So for instance parallel=classes and forkMode=perthread fork x JVMs in
parallel, whereas each JVM executes just one(!) test class and then terminates.
It would come in handy if there was another new forkMode (like "perthreadOnce"
or similar) which forks x JVMs that keep on executing test classes
(parallel=classes) until there are no more test-classes left to execute.
Example (all with parallel=classes and threadCount=2) with 4 test classes
(Test1-4):
perthread:
JVM1 is forked for Test1
JVM2 is forked for Test2
JVM1 for Test1 terminates
JVM2 for Test2 terminates
JVM3 is forked for Test3
JVM4 is forked for Test4
JVM4 for Test3 terminates
JVM3 for Test3 terminates
perthreadOnce (or the like):
JVM1 is forked, executes Test1
JVM2 is forked, executes Test2
JVM1 executes Test3
JVM2 executes Test4
JVM1 terminates
JVM2 terminates
In reality, the order of events can differ of course.
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