Thank you Kristian,
my mistake. I was trying to use parallel with an old project which
uses JUnit3 tests via JUnit4, so no @Test annotations.
Now, I am trying again with another project which is using JUnit4
with tests annotated with @Test.
But I do not see any speed-up improvement (on a Quad Core).
Also, I see:
[INFO] Concurrency config is {threadCount=4, parallel=both,
configurableParallelComputerPresent=false}
What the "configurableParallelComputerPresent=false" means?
I am not even sure if threadCount=4 means 4 threads per core
or 4 threads in total.
But, at least, this time the number of tests executed is correct.
Thanks again,
Paolo
Kristian Rosenvold wrote:
Please note that the parallel provider actually requires correctly
defined junit4/junit3 tests to run, annotate your methods with @Test.
The "classic" Junit 4 provider would run a large number of tests that
were incorrectly defined according to junit specifications. The
concurrent provider uses the same
selection mechanism as the junit 4 provider, but junit itself adds an
additional compliance check before running the test.
I also recommend you use the latest release of Junit; 4.8.2, or 4.8.1 if
4.8.2 hasn't reached the repos yet.
Kristian
Den 11.04.2010 23:58, skrev Paolo Castagna:
Hi,
I am trying to see if running JUnit tests in parallel makes any
difference and/or significant speed-up.
I have this in my pom.xml:
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
[...]
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.5</version>
<configuration>
<includes>
<include>[...]</include>
</includes>
<parallel>methods</parallel>
<threadCount>4</threadCount>
</configuration>
</plugin>
When I run the tests without <parallel> and <threadCount> I see:
Tests run: 9491, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: ...
While when I run the tests with <parallel> and <threadCount> as showed
above:
Tests run: 40, Failures: 0, Errors: 0, Skipped: 0
Is this a bug?
Am I doing something wrong here?
Thanks,
Paolo
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