java - how to create a test description with junit4 runListner -

following jsonlistner have extended junit runlistner. using json report after test run

package org.junit.runner;  import org.junit.runner.notification.runlistener;  import org.junit.runner.description; import org.junit.runner.result; import org.junit.runner.notification.failure;  import java.io.filewriter; import java.io.ioexception;  import org.json.simple.jsonarray; import org.json.simple.jsonobject;  class jsonlistener extends runlistener {    private jsonobject _tests_passed = new jsonobject();   private jsonobject _tests_started = new jsonobject();   private jsonobject _tests_finished = new jsonobject();   private jsonobject _tests_failures = new jsonobject();   private jsonobject _tests_ignored = new jsonobject();    public void testrunstarted(description description) throws exception {    }    public void testrunfinished(result result) throws exception {     system.out.println(_tests_passed);   }    public void teststarted(description description) throws exception {     string key = description.getdisplayname();     long value = system.currenttimemillis();      _tests_started.put(key, value);   }    public void testfinished(description description) throws exception {     // trying prit description of test running     system.out.println(palindromestringtest.desc);   }    public void testfailure(failure failure) throws exception {     string key = failure.getdescription().getdisplayname();     long value = system.currenttimemillis();      _tests_failures.put(key, value);   }    public void testassumptionfailure(failure failure) {     string key = failure.getdescription().getdisplayname();     long value = system.currenttimemillis();      _tests_failures.put(key, value);   }    public void testignored(description description) throws exception {     string key = description.getmethodname();     long value = system.currenttimemillis();      _tests_ignored.put(key, value);   }  } 

this 1 of test class running through runner.

import java.io.*; import org.junit.after; import org.junit.afterclass; import org.junit.before; import org.junit.beforeclass; import org.junit.test; import static org.junit.assert.*;  public class palindromestringtest {    bytearrayoutputstream outcontent = new bytearrayoutputstream();   static string desc;    @before   public void setupstream() {     system.setout(new printstream(outcontent));   }    @after   public void cleanupstream() {     system.setout(new printstream(new fileoutputstream(filedescriptor.out)));   }    @test   public void revtest() {     palindromestringtest.desc = "this should reverse string";     string = "madam";     palindromestring obj = new palindromestring();     string b = obj.rev(a);     assertequals("madam", b);   } } 

my question how this.desc value in testfinished method of runlistner? alternative have thought of using description field value after each test run complete. above implementation, failing compile runner

buildfile: /home/bonnie/workstation/junit-json-runner/build.xml  clean:    [delete] deleting directory /home/bonnie/workstation/junit-json-runner/build    [delete] deleting directory /home/bonnie/workstation/junit-json-runner/dist  mkdir:     [mkdir] created dir: /home/bonnie/workstation/junit-json-runner/build/classes     [mkdir] created dir: /home/bonnie/workstation/junit-json-runner/dist  compile:     [javac] compiling 2 source files /home/bonnie/workstation/junit-json-runner/build/classes     [javac] /home/bonnie/workstation/junit-json-runner/src/jsonlistner.java:39: error: cannot find symbol     [javac] system.out.println(palindromestringtest.desc);     [javac]                    ^     [javac]   symbol:   variable palindromestringtest     [javac]   location: class jsonlistener     [javac] note: /home/bonnie/workstation/junit-json-runner/src/jsonlistner.java uses unchecked or unsafe operations.     [javac] note: recompile -xlint:unchecked details.     [javac] 1 error  build failed /home/bonnie/workstation/junit-json-runner/build.xml:22: compile failed; see compiler error output details.  total time: 1 second 

what ways, can acomplished? there existing way create , test description in runner?

you have use java.lang.reflect.* in jsonlistner in order access description variable.

create method getdescrition in palindromestringtest class, , return description.

import java.io.*; import org.junit.after; import org.junit.afterclass; import org.junit.before; import org.junit.beforeclass; import org.junit.test; import static org.junit.assert.*;  public class palindromestringtest {    bytearrayoutputstream outcontent = new bytearrayoutputstream();   static string desc;    //public method value of desc   public function getdescription(){     return desc;   }    @before   public void setupstream() {     system.setout(new printstream(outcontent));   }    @after   public void cleanupstream() {     system.setout(new printstream(new fileoutputstream(filedescriptor.out)));   }    @test   public void revtest() {     palindromestringtest.desc = "this should reverse string";     string = "madam";     palindromestring obj = new palindromestring();     string b = obj.rev(a);     assertequals("madam", b);   } } 

now can access description in testfinished method of java reflection class

   public void testfinished(description description) throws exception {     class<?> testclass = description.gettestclass();     method m = testclass.getdeclaredmethod("getdescription");     object o = m.invoke(null);     system.out.println(o.tostring());      }