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Overview
Description
The JUnit backend is a Python XML-RPC service, which provides - in
tandem with ECSpooler - automatic testing of Java programs.
Therefore the backend uses JUnit tests, which have to be specified
by the teacher.
Prerequisites
* A UNIX or UNIX-like operating system, e.g., NetBSD, Solaris, Mac
OS X, or Linux.
JUnit backend does run on Windows (with some restrictions), but
this is neither supported nor recommended.
* "Python":http://python.org/
* "Java":http://java.sun.com/
* "JUnit (at least Version 4)":http://www.junit.org/
* "ECSpooler":http://wdok.cs.uni-magdeburg.de/software/ecspooler
* ECSpooler is primarily intended to be used via the
"ECAutoAssessmentBox":http://plone.org/products/ecautoassessmentbox
Plone product. So you will normally have a Plone installation
with ECAutoAssessmentBox.
Installation
* Unzip this archive under the 'backends' directory of your
* Adjust JAVA_HOME, JVM_HOME and PATH variables in
* Adjust JAVA_HOME, JVM_HOME and PATH variables in
Security
When executing unknown code, you have to take security precautions,
e.g., by using chroot, jails, or systrace. These mechanisms are,
however, system-dependent, so we cannot give detailed installation
instructions.
If you are using "systrace":http://www.systrace.org/, adjust the
to your system environment and also edit the variables *compiler* and
Please be aware of the risks if you are *not* able to deal with the
configuration issues.
Quick Start
After installation first start ECSpooler (see the ECSpooler
documentation for details). Then you should be able to start the
JUnit backend using the following command (you may have to specify
the path)::
backendctl -u root -p bazquux JUnit start
If you run this command as root, the process will be started as user
"nobody".
Once the backend is running, check the status of the backend using::
spoolerctl -u root -p bazquux status
and get a response similar to::
{'queue': 0, 'backends': ['junit'], 'pid': 6427, 'results': 0}
authentication is required. Therefore ECSpooler ships with a
password "bazquux".
Testing a Java program with the JUnit backend requires a Unit Test, e.g.,
* Unit Test::
@Test public void encodeTestSingleChar(){
${CLASS} submission = new ${CLASS}();
assertEquals('b',submission.encode('a',1));
}
@Test public void encodeEncode(){
${CLASS} submission = new ${CLASS}();
assertEquals('a',submission.encode(submission.encode('a',5),-5));
}
@Test public void codeTestSingleString(){
${CLASS} submission = new ${CLASS}();
String str = "abc";
assertEquals("bcd",submission.code(str,1));
}
@Test public void codeCode(){
${CLASS} submission = new ${CLASS}();
String str = "Test";
assertEquals(str, submission.code(submission.code(str,4),-4));
}
Support
For questions and discussions about backends, please join the
"eduComponents mailing
Credits
The JUnit backend was written by
"Christian Baumann":mailto:christian.baumann@teleos-web.de and
"Julia Preuße".
License
The JUnit backend is licensed under the
Copyright © 2007-2011 Otto-von-Guericke-Universität Magdeburg
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The JUnit backend is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with ECSpooler; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA