java - need to execute setup method only once in parallel execution mode -


i've parallel test cases execution setup testng need execute setup method once.

beforeclass, beforemethod gets executed individual threads. need execute method once before threads.

how achieve testng setup?

package com.howtodoinjava.parallelism;  import org.testng.annotations.afterclass; import org.testng.annotations.aftertest; import org.testng.annotations.beforeclass; import org.testng.annotations.beforetest; import org.testng.annotations.parameters; import org.testng.annotations.test;  public class parallelsuitetest  {     string testname = "";      @beforetest     @parameters({ "test-name" })     public void beforetest(string testname) {         this.testname = testname;         long id = thread.currentthread().getid();         system.out.println("before test " + testname + ". thread id is: " + id);     }      @beforeclass     public void beforeclass() {         long id = thread.currentthread().getid();         system.out.println("before test-class " + testname + ". thread id is: "                 + id);     }      @test     public void testmethodone() {         long id = thread.currentthread().getid();         system.out.println("sample test-method " + testname                 + ". thread id is: " + id);     }      @afterclass     public void afterclass() {         long id = thread.currentthread().getid();         system.out.println("after test-method  " + testname                 + ". thread id is: " + id);     }      @aftertest     public void aftertest() {         long id = thread.currentthread().getid();         system.out.println("after test  " + testname + ". thread id is: " + id);     } }

testng.xml

<suite name="test-class suite" parallel="tests" thread-count="2">     <test name="test-class test 1">         <parameter name="test-name" value="test-method one" />         <classes>             <class name="com.howtodoinjava.parallelism.parallelsuitetest" />         </classes>     </test>     <test name="test-class test 2">         <parameter name="test-name" value="test-method one" />         <classes>             <class name="com.howtodoinjava.parallelism.parallelsuitetest" />         </classes>     </test> </suite>

the following sample should explain suggesting.

package com.rationaleemotions.stackoverflow.qn45371087;  import org.testng.annotations.beforeclass; import org.testng.annotations.test;  public class parallelsuitetest {     private static final object lock = new object();     private static boolean initialised = false;      @beforeclass     public void beforeclass() {         synchronized (lock) {             if (!initialised) {                 init();                 initialised = true;             }         }     }      private void init() {         system.err.println("initialisation done");     }      @test     public void testmethodone() {         system.err.println("this test method running on [" + thread.currentthread().getid() + "]");     }  }

suite xml file

<?xml version="1.0" encoding="utf-8"?> <!doctype suite system "http://testng.org/testng-1.0.dtd"> <suite name="45371087_suite" verbose="2" parallel="tests" thread-count="10">     <test name="45371087_tests_1">         <classes>             <class name="com.rationaleemotions.stackoverflow.qn45371087.parallelsuitetest"/>         </classes>     </test>     <test name="45371087_tests_2">         <classes>             <class name="com.rationaleemotions.stackoverflow.qn45371087.parallelsuitetest"/>         </classes>     </test> </suite>

here's output:

... ... testng 6.12 cédric beust (cedric@beust.com) ... initialisation done test method running on [12] test method running on [11]  =============================================== 45371087_suite total tests run: 2, failures: 0, skips: 0 ===============================================

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