Hi Paul,

The reason we stick on standard jtreg tests is because it is simpler.
For us, a java test is not a unit test, it is an application.  :)

I agree with you that when writing and debugging java code, I would choose testng over jtreg and run and debug it inside my java IDE. But debugging the VM is instead done with a native debugger and what the framework gives you for java development, becomes a level of indirection in VM land. Just adding the test class as argument to the java launcher where a main method exists is preferred.

Cheers,
Stefan




Den 2015-12-02 kl. 09:52, skrev Paul Sandoz:
Hi Christian,

On 1 Dec 2015, at 20:19, Christian Tornqvist <christian.tornqv...@oracle.com <mailto:christian.tornqv...@oracle.com>> wrote:

Hi Paul,

Tests in hotspot/test/runtime needs to be jtreg tests.

They are jtreg tests. They are require to be run (re: “launched") with jtreg see:

http://cr.openjdk.java.net/~psandoz/jdk9/JDK-8143628-unsafe-native-hotspot/webrev/test/runtime/Unsafe/JdkInternalMiscUnsafeAccessTestBoolean.java.html <http://cr.openjdk.java.net/%7Epsandoz/jdk9/JDK-8143628-unsafe-native-hotspot/webrev/test/runtime/Unsafe/JdkInternalMiscUnsafeAccessTestBoolean.java.html>
   24 /*
   25  * @test
   26  * @bug 8143628
   27  * @summary Test unsafe access for boolean
   28  * @modules java.base/jdk.internal.misc
   29  * @run testng/othervm -Diters=100   -Xint                   
JdkInternalMiscUnsafeAccessTestBoolean
   30  * @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 
JdkInternalMiscUnsafeAccessTestBoolean
   31  * @run testng/othervm -Diters=20000 -XX:-TieredCompilation  
JdkInternalMiscUnsafeAccessTestBoolean
   32  * @run testng/othervm -Diters=20000                         
JdkInternalMiscUnsafeAccessTestBoolean
   33  */

That’s the point i was making with:

   jtreg is to testng as launcher is to library

Note the use of the "@modules java.base/jdk.internal.misc”. That’s gonna be important later on.


Looking at your tests, I can't see a reason why they can't easily be modified to be jtreg tests instead?

That’s not the point. There is a principle here about what test libraries one can or cannot use with the test in a particular area of a particular repo. At the moment i am not hearing any consistent and solid technical argument as to why testng cannot be used for HotSpot runtime tests.

Paul.

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