Major Description
When running a JUnit test, like TestBSPPeer, if an assertion fails in some thread, it is not reported in the console (only failed assertions of the main thread are reported). However the assertion failed exception is logged in the test report under build/report/tests/.
Example:
$ ant test
jar:file:/home/fdmanana/git/apache/hama/lib/findbugs/ant.jar!/org/apache/tools/ant/Project.class
[junit] Running org.apache.hama.bsp.TestBSPPeer
[junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 13.941 sec
$ cat build/reports/tests/TEST-org.apache.hama.bsp.TestBSPPeer.txt
....
2010-10-27 12:54:09,361 ERROR [Thread-97]
server.NIOServerCnxn$Factory$1(81): Thread Thread[Thread-97,5,main]
died
junit.framework.AssertionFailedError: expected:<20> but was:<1>
at junit.framework.Assert.fail(Assert.java:47)
at junit.framework.Assert.failNotEquals(Assert.java:282)
at junit.framework.Assert.assertEquals(Assert.java:64)
at junit.framework.Assert.assertEquals(Assert.java:201)
at junit.framework.Assert.assertEquals(Assert.java:207)
at org.apache.hama.bsp.TestBSPPeer$BSPPeerThread.run(TestBSPPeer.java:131)
2010-10-27 12:54:09,362 ERROR [Thread-81]
server.NIOServerCnxn$Factory$1(81): Thread Thread[Thread-81,5,main]
died
junit.framework.AssertionFailedError: expected:<20> but was:<1>
at junit.framework.Assert.fail(Assert.java:47)
at junit.framework.Assert.failNotEquals(Assert.java:282)
at junit.framework.Assert.assertEquals(Assert.java:64)
at junit.framework.Assert.assertEquals(Assert.java:201)
at junit.framework.Assert.assertEquals(Assert.java:207)
at org.apache.hama.bsp.TestBSPPeer$BSPPeerThread.run(TestBSPPeer.java:131)
....
We should probably use something like GroboTestingJUnit: http://today.java.net/pub/a/today/2003/08/06/multithreadedTests.html