jtulach@335: package org.apidesign.privileged.use;
jtulach@71: 
jtulach@330: import org.apidesign.privileged.api.Mutex;
jtulach@71: import org.junit.Test;
jtulach@71: import static org.junit.Assert.*;
jtulach@71: 
jtulach@71: public class MutexTest {
jtulach@71:     // BEGIN: mutex.init
jtulach@71:     private static final Mutex.Privileged PRIVILEGED = new Mutex.Privileged();
jtulach@71:     public static final Mutex MUTEX = new Mutex(PRIVILEGED);
jtulach@71:     // END: mutex.init
jtulach@71: 
jtulach@71:     public MutexTest() {
jtulach@71:     }
jtulach@71: 
jtulach@71:     /**
jtulach@335:      * Test of withLock method, of class Mutex.
jtulach@71:      */
jtulach@71:     @Test
jtulach@71:     public void readAccess() {
jtulach@331:         // BEGIN: mutex.use
jtulach@71:         class R implements Runnable {
jtulach@71:             int cnt;
jtulach@71:             
jtulach@71:             public void run() {
jtulach@71:                 cnt++;
jtulach@71:             }
jtulach@71:         }
jtulach@71:         R r = new R();
jtulach@335:         MUTEX.withLock(r);
jtulach@332:         assertEquals("Counter increased", 1, r.cnt);
jtulach@331:         // END: mutex.use
jtulach@71:     }
jtulach@71:     
jtulach@71:     @Test
jtulach@71:     public void usePrivileged() {
jtulach@332:         int cnt = 0;
jtulach@71:         // BEGIN: mutex.privileged
jtulach@71:         try {
jtulach@335:             PRIVILEGED.lock();
jtulach@335:             // do the operation
jtulach@332:             cnt++;
jtulach@71:         } finally {
jtulach@335:            PRIVILEGED.unlock();
jtulach@71:         }
jtulach@332:         assertEquals("Counter increased", 1, cnt);
jtulach@71:         // END: mutex.privileged
jtulach@71:         
jtulach@71:     }
jtulach@71: 
jaroslav@334: }