Cool idea - rethrow exceptions from exec'ed java :) You exec jvm that
dies because some exception (say, NPE) not catched, support_exec
analyzes output, understands that NPE was thrown and rethrows it :)
People who will look at those tests will certainly go mad.
On 8/16/06, Jimmy, Jing Lv <[EMAIL PROTECTED]> wrote:
Paulex Yang wrote:
> Jimmy, Jing Lv wrote:
>> Hi,
>>
>> I'm trying to write some unit tests of instrument. As discussed,
>> I'm using exec.
>> Currently I've tried Support_Exec and find it fairly easy to
>> use(Thanks Stepan :) ).
>>
>> For resources (jar files and utility classes), I make a new
>> directory:
>>
$Harmony/modules/instrument/src/test/resource/org/apache/harmony/tests/instrument
>> and put them there.
>>
>> And I meet a problem here. Currently the default classpath in
>> running test is "$Harmony/modules/instrument/bin", so it meets problem
>> in loading those utility classes (it can load jar files though).
>> I remember Mark has plan to change the classpath in running
>> testcase, it'll be great if he make some progress.
>>
>> An another problem is checking, currently the result is checked by
>> searching and compare in string(e.g, find "someException" in result).
>> But the framework seems fails if any exception is thrown out. Can it
>> make a little change that it passes and returns the error message in
>> exec?
> Didn't catch up here, did you mean that you need to check the exception
> message as well as exception type?
Not necessary to check messages. However we can not catch those
exceptions so we have to analysis output. For an example:
run "java -javaagent:test.jar myclass"
so get output:
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
sun.instrument.InstrumentationImpl.loadClassAndCallPremain(Unknown So
urce)
Caused by: java.lang.IllegalAccessError
...
In this case we can search for "InvocationTargetException" in the output
to ensure the expected exception. Sometimes we may also check "cause by"
exceptions.
This approach seems not perfect. Any comments/suggestions? Thanks!
<snip>
--
Best Regards!
Jimmy, Jing Lv
China Software Development Lab, IBM
---------------------------------------------------------------------
Terms of use : http://incubator.apache.org/harmony/mailing.html
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
--
Regards,
Anton Luht,
Intel Middleware Products Division
---------------------------------------------------------------------
Terms of use : http://incubator.apache.org/harmony/mailing.html
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
