test/tck/ExecutorsTest.java

/*
 * Written by Doug Lea with assistance from members of JCP JSR-166
 * Expert Group and released to the public domain, as explained at
 * http://creativecommons.org/licenses/publicdomain
 * Other contributors include Andrew Wright, Jeffrey Hayes,
 * Pat Fisher, Mike Judd.
 */


import junit.framework.*;
import java.util.*;
import java.util.concurrent.*;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import java.math.BigInteger;
import java.security.*;

public class ExecutorsTest extends JSR166TestCase {
    public static void main(String[] args) {
        junit.textui.TestRunner.run (suite());
    }
    public static Test suite() {
        return new TestSuite(ExecutorsTest.class);
    }

    static class TimedCallable<T> implements Callable<T> {
        private final ExecutorService exec;
        private final Callable<T> func;
        private final long msecs;

        TimedCallable(ExecutorService exec, Callable<T> func, long msecs) {
            this.exec = exec;
            this.func = func;
            this.msecs = msecs;
        }

        public T call() throws Exception {
            Future<T> ftask = exec.submit(func);
            try {
                return ftask.get(msecs, MILLISECONDS);
            } finally {
                ftask.cancel(true);
            }
        }
    }


    private static class Fib implements Callable<BigInteger> {
        private final BigInteger n;
        Fib(long n) {
            if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
            this.n = BigInteger.valueOf(n);
        }
        public BigInteger call() {
            BigInteger f1 = BigInteger.ONE;
            BigInteger f2 = f1;
            for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
                BigInteger t = f1.add(f2);
                f1 = f2;
                f2 = t;
            }
            return f1;
        }
    };

    /**
     * A newCachedThreadPool can execute runnables
     */
    public void testNewCachedThreadPool1() {
        ExecutorService e = Executors.newCachedThreadPool();
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        joinPool(e);
    }

    /**
     * A newCachedThreadPool with given ThreadFactory can execute runnables
     */
    public void testNewCachedThreadPool2() {
        ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        joinPool(e);
    }

    /**
     * A newCachedThreadPool with null ThreadFactory throws NPE
     */
    public void testNewCachedThreadPool3() {
        try {
            ExecutorService e = Executors.newCachedThreadPool(null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }


    /**
     * A new SingleThreadExecutor can execute runnables
     */
    public void testNewSingleThreadExecutor1() {
        ExecutorService e = Executors.newSingleThreadExecutor();
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        joinPool(e);
    }

    /**
     * A new SingleThreadExecutor with given ThreadFactory can execute runnables
     */
    public void testNewSingleThreadExecutor2() {
        ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        joinPool(e);
    }

    /**
     * A new SingleThreadExecutor with null ThreadFactory throws NPE
     */
    public void testNewSingleThreadExecutor3() {
        try {
            ExecutorService e = Executors.newSingleThreadExecutor(null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * A new SingleThreadExecutor cannot be casted to concrete implementation
     */
    public void testCastNewSingleThreadExecutor() {
        ExecutorService e = Executors.newSingleThreadExecutor();
        try {
            ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
            shouldThrow();
        } catch (ClassCastException success) {
        } finally {
            joinPool(e);
        }
    }


    /**
     * A new newFixedThreadPool can execute runnables
     */
    public void testNewFixedThreadPool1() {
        ExecutorService e = Executors.newFixedThreadPool(2);
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        joinPool(e);
    }

    /**
     * A new newFixedThreadPool with given ThreadFactory can execute runnables
     */
    public void testNewFixedThreadPool2() {
        ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        joinPool(e);
    }

    /**
     * A new newFixedThreadPool with null ThreadFactory throws NPE
     */
    public void testNewFixedThreadPool3() {
        try {
            ExecutorService e = Executors.newFixedThreadPool(2, null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * A new newFixedThreadPool with 0 threads throws IAE
     */
    public void testNewFixedThreadPool4() {
        try {
            ExecutorService e = Executors.newFixedThreadPool(0);
            shouldThrow();
        } catch (IllegalArgumentException success) {}
    }


    /**
     * An unconfigurable newFixedThreadPool can execute runnables
     */
    public void testunconfigurableExecutorService() {
        ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        e.execute(new NoOpRunnable());
        joinPool(e);
    }

    /**
     * unconfigurableExecutorService(null) throws NPE
     */
    public void testunconfigurableExecutorServiceNPE() {
        try {
            ExecutorService e = Executors.unconfigurableExecutorService(null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * unconfigurableScheduledExecutorService(null) throws NPE
     */
    public void testunconfigurableScheduledExecutorServiceNPE() {
        try {
            ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }


    /**
     * a newSingleThreadScheduledExecutor successfully runs delayed task
     */
    public void testNewSingleThreadScheduledExecutor() throws Exception {
        TrackedCallable callable = new TrackedCallable();
        ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
        Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
        assertFalse(callable.done);
        Thread.sleep(MEDIUM_DELAY_MS);
        assertTrue(callable.done);
        assertEquals(Boolean.TRUE, f.get());
        joinPool(p1);
    }

    /**
     * a newScheduledThreadPool successfully runs delayed task
     */
    public void testnewScheduledThreadPool() throws Exception {
        TrackedCallable callable = new TrackedCallable();
        ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
        Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
        assertFalse(callable.done);
        Thread.sleep(MEDIUM_DELAY_MS);
        assertTrue(callable.done);
        assertEquals(Boolean.TRUE, f.get());
        joinPool(p1);
    }

    /**
     * an unconfigurable newScheduledThreadPool successfully runs delayed task
     */
    public void testunconfigurableScheduledExecutorService() throws Exception {
        TrackedCallable callable = new TrackedCallable();
        ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
        Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
        assertFalse(callable.done);
        Thread.sleep(MEDIUM_DELAY_MS);
        assertTrue(callable.done);
        assertEquals(Boolean.TRUE, f.get());
        joinPool(p1);
    }

    /**
     *  timeouts from execute will time out if they compute too long.
     */
    public void testTimedCallable() throws Exception {
        int N = 10000;
        ExecutorService executor = Executors.newSingleThreadExecutor();
        List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
        try {
            long startTime = System.currentTimeMillis();

            long i = 0;
            while (tasks.size() < N) {
                tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
                i += 10;
            }

            int iters = 0;
            BigInteger sum = BigInteger.ZERO;
            for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
                try {
                    ++iters;
                    sum = sum.add(it.next().call());
                }
                catch (TimeoutException success) {
                    assertTrue(iters > 0);
                    return;
                }
            }
            // if by chance we didn't ever time out, total time must be small
            long elapsed = System.currentTimeMillis() - startTime;
            assertTrue(elapsed < N);
        }
        finally {
            joinPool(executor);
        }
    }


    /**
     * ThreadPoolExecutor using defaultThreadFactory has
     * specified group, priority, daemon status, and name
     */
    public void testDefaultThreadFactory() throws Exception {
        final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
        Runnable r = new Runnable() {
                public void run() {
                    try {
                        Thread current = Thread.currentThread();
                        threadAssertTrue(!current.isDaemon());
                        threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
                        ThreadGroup g = current.getThreadGroup();
                        SecurityManager s = System.getSecurityManager();
                        if (s != null)
                            threadAssertTrue(g == s.getThreadGroup());
                        else
                            threadAssertTrue(g == egroup);
                        String name = current.getName();
                        threadAssertTrue(name.endsWith("thread-1"));
                    } catch (SecurityException ok) {
                        // Also pass if not allowed to change setting
                    }
                }
            };
        ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());

        e.execute(r);
        try {
            e.shutdown();
        } catch (SecurityException ok) {
        }

        try {
            Thread.sleep(SHORT_DELAY_MS);
        } finally {
            joinPool(e);
        }
    }

    /**
     * ThreadPoolExecutor using privilegedThreadFactory has
     * specified group, priority, daemon status, name,
     * access control context and context class loader
     */
    public void testPrivilegedThreadFactory() throws Exception {
        Policy savedPolicy = null;
        try {
            savedPolicy = Policy.getPolicy();
            AdjustablePolicy policy = new AdjustablePolicy();
            policy.addPermission(new RuntimePermission("getContextClassLoader"));
            policy.addPermission(new RuntimePermission("setContextClassLoader"));
            Policy.setPolicy(policy);
        } catch (AccessControlException ok) {
            return;
        }
        final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
        final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
        final AccessControlContext thisacc = AccessController.getContext();
        Runnable r = new Runnable() {
                public void run() {
                    try {
                        Thread current = Thread.currentThread();
                        threadAssertTrue(!current.isDaemon());
                        threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
                        ThreadGroup g = current.getThreadGroup();
                        SecurityManager s = System.getSecurityManager();
                        if (s != null)
                            threadAssertTrue(g == s.getThreadGroup());
                        else
                            threadAssertTrue(g == egroup);
                        String name = current.getName();
                        threadAssertTrue(name.endsWith("thread-1"));
                        threadAssertTrue(thisccl == current.getContextClassLoader());
                        threadAssertTrue(thisacc.equals(AccessController.getContext()));
                    } catch (SecurityException ok) {
                        // Also pass if not allowed to change settings
                    }
                }
            };
        ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());

        Policy.setPolicy(savedPolicy);
        e.execute(r);
        try {
            e.shutdown();
        } catch (SecurityException ok) {
        }
        try {
            Thread.sleep(SHORT_DELAY_MS);
        } finally {
            joinPool(e);
        }
    }

    void checkCCL() {
        SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            sm.checkPermission(new RuntimePermission("setContextClassLoader"));
            sm.checkPermission(new RuntimePermission("getClassLoader"));
        }
    }

    class CheckCCL implements Callable<Object> {
        public Object call() {
            checkCCL();
            return null;
        }
    }


    /**
     * Without class loader permissions, creating
     * privilegedCallableUsingCurrentClassLoader throws ACE
     */
    public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
        Policy savedPolicy = null;
        try {
            savedPolicy = Policy.getPolicy();
            AdjustablePolicy policy = new AdjustablePolicy();
            Policy.setPolicy(policy);
        } catch (AccessControlException ok) {
            return;
        }

        // Check if program still has too many permissions to run test
        try {
            checkCCL();
            // too many privileges to test; so return
            Policy.setPolicy(savedPolicy);
            return;
        } catch (AccessControlException ok) {
        }

        try {
            Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
            shouldThrow();
        } catch (AccessControlException success) {
        } finally {
            Policy.setPolicy(savedPolicy);
        }
    }

    /**
     * With class loader permissions, calling
     * privilegedCallableUsingCurrentClassLoader does not throw ACE
     */
    public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
        Policy savedPolicy = null;
        try {
            savedPolicy = Policy.getPolicy();
            AdjustablePolicy policy = new AdjustablePolicy();
            policy.addPermission(new RuntimePermission("getContextClassLoader"));
            policy.addPermission(new RuntimePermission("setContextClassLoader"));
            Policy.setPolicy(policy);
        } catch (AccessControlException ok) {
            return;
        }

        try {
            Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
            task.call();
        }
        finally {
            Policy.setPolicy(savedPolicy);
        }
    }

    /**
     * Without permissions, calling privilegedCallable throws ACE
     */
    public void testprivilegedCallableWithNoPrivs() throws Exception {
        Callable task;
        Policy savedPolicy = null;
        AdjustablePolicy policy = null;
        AccessControlContext noprivAcc = null;
        try {
            savedPolicy = Policy.getPolicy();
            policy = new AdjustablePolicy();
            Policy.setPolicy(policy);
            noprivAcc = AccessController.getContext();
            task = Executors.privilegedCallable(new CheckCCL());
            Policy.setPolicy(savedPolicy);
        } catch (AccessControlException ok) {
            return; // program has too few permissions to set up test
        }

        // Make sure that program doesn't have too many permissions
        try {
            AccessController.doPrivileged(new PrivilegedAction() {
                    public Object run() {
                        checkCCL();
                        return null;
                    }}, noprivAcc);
            // too many permssions; skip test
            return;
        } catch (AccessControlException ok) {
        }

        try {
            task.call();
            shouldThrow();
        } catch (AccessControlException success) {}
    }

    /**
     * With permissions, calling privilegedCallable succeeds
     */
    public void testprivilegedCallableWithPrivs() throws Exception {
        Policy savedPolicy = null;
        try {
            savedPolicy = Policy.getPolicy();
            AdjustablePolicy policy = new AdjustablePolicy();
            policy.addPermission(new RuntimePermission("getContextClassLoader"));
            policy.addPermission(new RuntimePermission("setContextClassLoader"));
            Policy.setPolicy(policy);
        } catch (AccessControlException ok) {
            return;
        }

        Callable task = Executors.privilegedCallable(new CheckCCL());
        try {
            task.call();
        } finally {
            Policy.setPolicy(savedPolicy);
        }
    }

    /**
     * callable(Runnable) returns null when called
     */
    public void testCallable1() throws Exception {
        Callable c = Executors.callable(new NoOpRunnable());
        assertNull(c.call());
    }

    /**
     * callable(Runnable, result) returns result when called
     */
    public void testCallable2() throws Exception {
        Callable c = Executors.callable(new NoOpRunnable(), one);
        assertSame(one, c.call());
    }

    /**
     * callable(PrivilegedAction) returns its result when called
     */
    public void testCallable3() throws Exception {
        Callable c = Executors.callable(new PrivilegedAction() {
                public Object run() { return one; }});
        assertSame(one, c.call());
    }

    /**
     * callable(PrivilegedExceptionAction) returns its result when called
     */
    public void testCallable4() throws Exception {
        Callable c = Executors.callable(new PrivilegedExceptionAction() {
                public Object run() { return one; }});
        assertSame(one, c.call());
    }


    /**
     * callable(null Runnable) throws NPE
     */
    public void testCallableNPE1() {
        try {
            Callable c = Executors.callable((Runnable) null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * callable(null, result) throws NPE
     */
    public void testCallableNPE2() {
        try {
            Callable c = Executors.callable((Runnable) null, one);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * callable(null PrivilegedAction) throws NPE
     */
    public void testCallableNPE3() {
        try {
            Callable c = Executors.callable((PrivilegedAction) null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * callable(null PrivilegedExceptionAction) throws NPE
     */
    public void testCallableNPE4() {
        try {
            Callable c = Executors.callable((PrivilegedExceptionAction) null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }


}
Revision:	1.27
Committed:	Tue Dec 1 09:56:28 2009 UTC (14 years, 5 months ago) by jsr166
Branch:	MAIN
Changes since 1.26:	+3 -4 lines
Log Message:	use stricter assertions, e.g. assertSame
#	User	Rev	Content
1	dl	1.1	/*
2	dl	1.12	* Written by Doug Lea with assistance from members of JCP JSR-166
3			* Expert Group and released to the public domain, as explained at
4			* http://creativecommons.org/licenses/publicdomain
5	jsr166	1.20	* Other contributors include Andrew Wright, Jeffrey Hayes,
6			* Pat Fisher, Mike Judd.
7	dl	1.1	*/
8
9
10			import junit.framework.*;
11			import java.util.*;
12			import java.util.concurrent.*;
13	jsr166	1.26	import static java.util.concurrent.TimeUnit.MILLISECONDS;
14	dl	1.2	import java.math.BigInteger;
15	dl	1.8	import java.security.*;
16	dl	1.1
17	jsr166	1.22	public class ExecutorsTest extends JSR166TestCase {
18	dl	1.1	public static void main(String[] args) {
19	jsr166	1.20	junit.textui.TestRunner.run (suite());
20	dl	1.1	}
21			public static Test suite() {
22	tim	1.9	return new TestSuite(ExecutorsTest.class);
23	dl	1.1	}
24
25	dl	1.4	static class TimedCallable<T> implements Callable<T> {
26	tim	1.10	private final ExecutorService exec;
27	dl	1.4	private final Callable<T> func;
28			private final long msecs;
29	jsr166	1.20
30	tim	1.10	TimedCallable(ExecutorService exec, Callable<T> func, long msecs) {
31	dl	1.4	this.exec = exec;
32			this.func = func;
33			this.msecs = msecs;
34			}
35	jsr166	1.20
36	dl	1.4	public T call() throws Exception {
37	tim	1.10	Future<T> ftask = exec.submit(func);
38	dl	1.4	try {
39	jsr166	1.26	return ftask.get(msecs, MILLISECONDS);
40	dl	1.4	} finally {
41			ftask.cancel(true);
42			}
43			}
44			}
45
46
47			private static class Fib implements Callable<BigInteger> {
48			private final BigInteger n;
49			Fib(long n) {
50			if (n < 0) throw new IllegalArgumentException("need non-negative arg, but got " + n);
51			this.n = BigInteger.valueOf(n);
52			}
53			public BigInteger call() {
54			BigInteger f1 = BigInteger.ONE;
55			BigInteger f2 = f1;
56			for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
57			BigInteger t = f1.add(f2);
58			f1 = f2;
59			f2 = t;
60			}
61			return f1;
62			}
63			};
64
65	dl	1.5	/**
66			* A newCachedThreadPool can execute runnables
67			*/
68			public void testNewCachedThreadPool1() {
69			ExecutorService e = Executors.newCachedThreadPool();
70			e.execute(new NoOpRunnable());
71			e.execute(new NoOpRunnable());
72			e.execute(new NoOpRunnable());
73	dl	1.14	joinPool(e);
74	dl	1.5	}
75
76			/**
77			* A newCachedThreadPool with given ThreadFactory can execute runnables
78			*/
79			public void testNewCachedThreadPool2() {
80	dl	1.6	ExecutorService e = Executors.newCachedThreadPool(new SimpleThreadFactory());
81	dl	1.5	e.execute(new NoOpRunnable());
82			e.execute(new NoOpRunnable());
83			e.execute(new NoOpRunnable());
84	dl	1.14	joinPool(e);
85	dl	1.5	}
86
87			/**
88			* A newCachedThreadPool with null ThreadFactory throws NPE
89			*/
90			public void testNewCachedThreadPool3() {
91			try {
92			ExecutorService e = Executors.newCachedThreadPool(null);
93			shouldThrow();
94	jsr166	1.23	} catch (NullPointerException success) {}
95	dl	1.5	}
96
97
98			/**
99			* A new SingleThreadExecutor can execute runnables
100			*/
101			public void testNewSingleThreadExecutor1() {
102			ExecutorService e = Executors.newSingleThreadExecutor();
103			e.execute(new NoOpRunnable());
104			e.execute(new NoOpRunnable());
105			e.execute(new NoOpRunnable());
106	dl	1.14	joinPool(e);
107	dl	1.5	}
108
109			/**
110			* A new SingleThreadExecutor with given ThreadFactory can execute runnables
111			*/
112			public void testNewSingleThreadExecutor2() {
113	dl	1.6	ExecutorService e = Executors.newSingleThreadExecutor(new SimpleThreadFactory());
114	dl	1.5	e.execute(new NoOpRunnable());
115			e.execute(new NoOpRunnable());
116			e.execute(new NoOpRunnable());
117	dl	1.14	joinPool(e);
118	dl	1.5	}
119
120			/**
121			* A new SingleThreadExecutor with null ThreadFactory throws NPE
122			*/
123			public void testNewSingleThreadExecutor3() {
124			try {
125			ExecutorService e = Executors.newSingleThreadExecutor(null);
126			shouldThrow();
127	jsr166	1.23	} catch (NullPointerException success) {}
128	dl	1.5	}
129
130			/**
131	dl	1.11	* A new SingleThreadExecutor cannot be casted to concrete implementation
132			*/
133			public void testCastNewSingleThreadExecutor() {
134			ExecutorService e = Executors.newSingleThreadExecutor();
135			try {
136			ThreadPoolExecutor tpe = (ThreadPoolExecutor)e;
137	jsr166	1.23	shouldThrow();
138	dl	1.11	} catch (ClassCastException success) {
139			} finally {
140			joinPool(e);
141			}
142			}
143
144
145			/**
146	dl	1.5	* A new newFixedThreadPool can execute runnables
147			*/
148			public void testNewFixedThreadPool1() {
149			ExecutorService e = Executors.newFixedThreadPool(2);
150			e.execute(new NoOpRunnable());
151			e.execute(new NoOpRunnable());
152			e.execute(new NoOpRunnable());
153	dl	1.14	joinPool(e);
154	dl	1.5	}
155
156			/**
157			* A new newFixedThreadPool with given ThreadFactory can execute runnables
158			*/
159			public void testNewFixedThreadPool2() {
160	dl	1.6	ExecutorService e = Executors.newFixedThreadPool(2, new SimpleThreadFactory());
161	dl	1.5	e.execute(new NoOpRunnable());
162			e.execute(new NoOpRunnable());
163			e.execute(new NoOpRunnable());
164	dl	1.14	joinPool(e);
165	dl	1.5	}
166
167			/**
168			* A new newFixedThreadPool with null ThreadFactory throws NPE
169			*/
170			public void testNewFixedThreadPool3() {
171			try {
172			ExecutorService e = Executors.newFixedThreadPool(2, null);
173			shouldThrow();
174	jsr166	1.23	} catch (NullPointerException success) {}
175	dl	1.5	}
176
177			/**
178			* A new newFixedThreadPool with 0 threads throws IAE
179			*/
180			public void testNewFixedThreadPool4() {
181			try {
182			ExecutorService e = Executors.newFixedThreadPool(0);
183			shouldThrow();
184	jsr166	1.23	} catch (IllegalArgumentException success) {}
185	dl	1.5	}
186	dl	1.1
187	dl	1.2
188			/**
189	dl	1.11	* An unconfigurable newFixedThreadPool can execute runnables
190			*/
191			public void testunconfigurableExecutorService() {
192			ExecutorService e = Executors.unconfigurableExecutorService(Executors.newFixedThreadPool(2));
193			e.execute(new NoOpRunnable());
194			e.execute(new NoOpRunnable());
195			e.execute(new NoOpRunnable());
196	dl	1.14	joinPool(e);
197	dl	1.11	}
198
199			/**
200			* unconfigurableExecutorService(null) throws NPE
201			*/
202			public void testunconfigurableExecutorServiceNPE() {
203			try {
204			ExecutorService e = Executors.unconfigurableExecutorService(null);
205	jsr166	1.23	shouldThrow();
206			} catch (NullPointerException success) {}
207	dl	1.11	}
208
209			/**
210			* unconfigurableScheduledExecutorService(null) throws NPE
211			*/
212			public void testunconfigurableScheduledExecutorServiceNPE() {
213			try {
214			ExecutorService e = Executors.unconfigurableScheduledExecutorService(null);
215	jsr166	1.23	shouldThrow();
216			} catch (NullPointerException success) {}
217	dl	1.11	}
218
219
220			/**
221			* a newSingleThreadScheduledExecutor successfully runs delayed task
222			*/
223	jsr166	1.23	public void testNewSingleThreadScheduledExecutor() throws Exception {
224	jsr166	1.24	TrackedCallable callable = new TrackedCallable();
225			ScheduledExecutorService p1 = Executors.newSingleThreadScheduledExecutor();
226	jsr166	1.26	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
227	jsr166	1.24	assertFalse(callable.done);
228			Thread.sleep(MEDIUM_DELAY_MS);
229			assertTrue(callable.done);
230			assertEquals(Boolean.TRUE, f.get());
231			joinPool(p1);
232	dl	1.11	}
233
234			/**
235			* a newScheduledThreadPool successfully runs delayed task
236			*/
237	jsr166	1.23	public void testnewScheduledThreadPool() throws Exception {
238	jsr166	1.24	TrackedCallable callable = new TrackedCallable();
239			ScheduledExecutorService p1 = Executors.newScheduledThreadPool(2);
240	jsr166	1.26	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
241	jsr166	1.24	assertFalse(callable.done);
242			Thread.sleep(MEDIUM_DELAY_MS);
243			assertTrue(callable.done);
244			assertEquals(Boolean.TRUE, f.get());
245			joinPool(p1);
246	dl	1.11	}
247
248			/**
249	jsr166	1.24	* an unconfigurable newScheduledThreadPool successfully runs delayed task
250	dl	1.11	*/
251	jsr166	1.23	public void testunconfigurableScheduledExecutorService() throws Exception {
252	jsr166	1.24	TrackedCallable callable = new TrackedCallable();
253			ScheduledExecutorService p1 = Executors.unconfigurableScheduledExecutorService(Executors.newScheduledThreadPool(2));
254	jsr166	1.26	Future f = p1.schedule(callable, SHORT_DELAY_MS, MILLISECONDS);
255	jsr166	1.24	assertFalse(callable.done);
256			Thread.sleep(MEDIUM_DELAY_MS);
257			assertTrue(callable.done);
258			assertEquals(Boolean.TRUE, f.get());
259			joinPool(p1);
260	dl	1.11	}
261
262			/**
263	dl	1.4	* timeouts from execute will time out if they compute too long.
264	dl	1.2	*/
265	jsr166	1.23	public void testTimedCallable() throws Exception {
266	dl	1.2	int N = 10000;
267			ExecutorService executor = Executors.newSingleThreadExecutor();
268			List<Callable<BigInteger>> tasks = new ArrayList<Callable<BigInteger>>(N);
269			try {
270			long startTime = System.currentTimeMillis();
271	jsr166	1.20
272	dl	1.2	long i = 0;
273			while (tasks.size() < N) {
274			tasks.add(new TimedCallable<BigInteger>(executor, new Fib(i), 1));
275			i += 10;
276			}
277	jsr166	1.20
278	dl	1.2	int iters = 0;
279			BigInteger sum = BigInteger.ZERO;
280			for (Iterator<Callable<BigInteger>> it = tasks.iterator(); it.hasNext();) {
281			try {
282			++iters;
283			sum = sum.add(it.next().call());
284			}
285			catch (TimeoutException success) {
286			assertTrue(iters > 0);
287			return;
288			}
289			}
290			// if by chance we didn't ever time out, total time must be small
291			long elapsed = System.currentTimeMillis() - startTime;
292			assertTrue(elapsed < N);
293			}
294			finally {
295	dl	1.3	joinPool(executor);
296	dl	1.2	}
297			}
298
299	jsr166	1.20
300	dl	1.8	/**
301			* ThreadPoolExecutor using defaultThreadFactory has
302			* specified group, priority, daemon status, and name
303			*/
304	jsr166	1.23	public void testDefaultThreadFactory() throws Exception {
305	tim	1.9	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
306			Runnable r = new Runnable() {
307			public void run() {
308	jsr166	1.25	try {
309			Thread current = Thread.currentThread();
310			threadAssertTrue(!current.isDaemon());
311			threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
312			ThreadGroup g = current.getThreadGroup();
313			SecurityManager s = System.getSecurityManager();
314			if (s != null)
315			threadAssertTrue(g == s.getThreadGroup());
316			else
317			threadAssertTrue(g == egroup);
318			String name = current.getName();
319			threadAssertTrue(name.endsWith("thread-1"));
320			} catch (SecurityException ok) {
321			// Also pass if not allowed to change setting
322			}
323	tim	1.9	}
324			};
325			ExecutorService e = Executors.newSingleThreadExecutor(Executors.defaultThreadFactory());
326	jsr166	1.20
327	tim	1.9	e.execute(r);
328	dl	1.14	try {
329			e.shutdown();
330	jsr166	1.21	} catch (SecurityException ok) {
331	dl	1.14	}
332	jsr166	1.20
333	tim	1.9	try {
334			Thread.sleep(SHORT_DELAY_MS);
335			} finally {
336			joinPool(e);
337			}
338	dl	1.8	}
339
340			/**
341			* ThreadPoolExecutor using privilegedThreadFactory has
342			* specified group, priority, daemon status, name,
343			* access control context and context class loader
344			*/
345	jsr166	1.23	public void testPrivilegedThreadFactory() throws Exception {
346	dl	1.14	Policy savedPolicy = null;
347			try {
348			savedPolicy = Policy.getPolicy();
349			AdjustablePolicy policy = new AdjustablePolicy();
350			policy.addPermission(new RuntimePermission("getContextClassLoader"));
351			policy.addPermission(new RuntimePermission("setContextClassLoader"));
352			Policy.setPolicy(policy);
353			} catch (AccessControlException ok) {
354			return;
355			}
356	tim	1.9	final ThreadGroup egroup = Thread.currentThread().getThreadGroup();
357			final ClassLoader thisccl = Thread.currentThread().getContextClassLoader();
358	dl	1.8	final AccessControlContext thisacc = AccessController.getContext();
359	tim	1.9	Runnable r = new Runnable() {
360			public void run() {
361	jsr166	1.25	try {
362			Thread current = Thread.currentThread();
363			threadAssertTrue(!current.isDaemon());
364			threadAssertTrue(current.getPriority() <= Thread.NORM_PRIORITY);
365			ThreadGroup g = current.getThreadGroup();
366			SecurityManager s = System.getSecurityManager();
367			if (s != null)
368			threadAssertTrue(g == s.getThreadGroup());
369			else
370			threadAssertTrue(g == egroup);
371			String name = current.getName();
372			threadAssertTrue(name.endsWith("thread-1"));
373			threadAssertTrue(thisccl == current.getContextClassLoader());
374			threadAssertTrue(thisacc.equals(AccessController.getContext()));
375			} catch (SecurityException ok) {
376			// Also pass if not allowed to change settings
377			}
378	dl	1.14	}
379	tim	1.9	};
380			ExecutorService e = Executors.newSingleThreadExecutor(Executors.privilegedThreadFactory());
381	jsr166	1.20
382	tim	1.9	Policy.setPolicy(savedPolicy);
383			e.execute(r);
384	dl	1.14	try {
385			e.shutdown();
386	jsr166	1.21	} catch (SecurityException ok) {
387	dl	1.14	}
388	tim	1.9	try {
389			Thread.sleep(SHORT_DELAY_MS);
390			} finally {
391			joinPool(e);
392			}
393	dl	1.8	}
394	dl	1.11
395	dl	1.16	void checkCCL() {
396	dl	1.18	SecurityManager sm = System.getSecurityManager();
397			if (sm != null) {
398			sm.checkPermission(new RuntimePermission("setContextClassLoader"));
399	jsr166	1.19	sm.checkPermission(new RuntimePermission("getClassLoader"));
400	dl	1.18	}
401	dl	1.16	}
402
403			class CheckCCL implements Callable<Object> {
404	dl	1.11	public Object call() {
405	dl	1.16	checkCCL();
406	dl	1.11	return null;
407			}
408			}
409
410
411			/**
412			* Without class loader permissions, creating
413			* privilegedCallableUsingCurrentClassLoader throws ACE
414			*/
415			public void testCreatePrivilegedCallableUsingCCLWithNoPrivs() {
416	jsr166	1.25	Policy savedPolicy = null;
417	dl	1.14	try {
418			savedPolicy = Policy.getPolicy();
419			AdjustablePolicy policy = new AdjustablePolicy();
420			Policy.setPolicy(policy);
421			} catch (AccessControlException ok) {
422			return;
423			}
424
425	dl	1.16	// Check if program still has too many permissions to run test
426			try {
427			checkCCL();
428			// too many privileges to test; so return
429			Policy.setPolicy(savedPolicy);
430			return;
431	jsr166	1.21	} catch (AccessControlException ok) {
432	jsr166	1.20	}
433	dl	1.16
434	dl	1.11	try {
435			Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
436			shouldThrow();
437	jsr166	1.21	} catch (AccessControlException success) {
438	jsr166	1.23	} finally {
439	dl	1.11	Policy.setPolicy(savedPolicy);
440			}
441			}
442
443			/**
444	dl	1.16	* With class loader permissions, calling
445			* privilegedCallableUsingCurrentClassLoader does not throw ACE
446	dl	1.11	*/
447	jsr166	1.23	public void testprivilegedCallableUsingCCLWithPrivs() throws Exception {
448	jsr166	1.25	Policy savedPolicy = null;
449	dl	1.14	try {
450			savedPolicy = Policy.getPolicy();
451			AdjustablePolicy policy = new AdjustablePolicy();
452			policy.addPermission(new RuntimePermission("getContextClassLoader"));
453			policy.addPermission(new RuntimePermission("setContextClassLoader"));
454			Policy.setPolicy(policy);
455			} catch (AccessControlException ok) {
456			return;
457			}
458	jsr166	1.20
459	dl	1.11	try {
460			Callable task = Executors.privilegedCallableUsingCurrentClassLoader(new NoOpCallable());
461			task.call();
462	jsr166	1.20	}
463	dl	1.11	finally {
464			Policy.setPolicy(savedPolicy);
465			}
466			}
467
468			/**
469			* Without permissions, calling privilegedCallable throws ACE
470			*/
471	jsr166	1.23	public void testprivilegedCallableWithNoPrivs() throws Exception {
472	dl	1.16	Callable task;
473			Policy savedPolicy = null;
474			AdjustablePolicy policy = null;
475			AccessControlContext noprivAcc = null;
476	dl	1.14	try {
477	dl	1.16	savedPolicy = Policy.getPolicy();
478			policy = new AdjustablePolicy();
479	dl	1.14	Policy.setPolicy(policy);
480	dl	1.16	noprivAcc = AccessController.getContext();
481			task = Executors.privilegedCallable(new CheckCCL());
482	dl	1.15	Policy.setPolicy(savedPolicy);
483	dl	1.14	} catch (AccessControlException ok) {
484	dl	1.16	return; // program has too few permissions to set up test
485			}
486
487	jsr166	1.20	// Make sure that program doesn't have too many permissions
488	dl	1.16	try {
489			AccessController.doPrivileged(new PrivilegedAction() {
490			public Object run() {
491			checkCCL();
492			return null;
493			}}, noprivAcc);
494			// too many permssions; skip test
495	dl	1.14	return;
496	jsr166	1.21	} catch (AccessControlException ok) {
497	dl	1.14	}
498
499	dl	1.11	try {
500	dl	1.16	task.call();
501			shouldThrow();
502	jsr166	1.23	} catch (AccessControlException success) {}
503	dl	1.11	}
504
505			/**
506			* With permissions, calling privilegedCallable succeeds
507			*/
508	jsr166	1.23	public void testprivilegedCallableWithPrivs() throws Exception {
509	jsr166	1.25	Policy savedPolicy = null;
510	dl	1.14	try {
511			savedPolicy = Policy.getPolicy();
512			AdjustablePolicy policy = new AdjustablePolicy();
513			policy.addPermission(new RuntimePermission("getContextClassLoader"));
514			policy.addPermission(new RuntimePermission("setContextClassLoader"));
515			Policy.setPolicy(policy);
516			} catch (AccessControlException ok) {
517			return;
518			}
519	jsr166	1.20
520	dl	1.11	Callable task = Executors.privilegedCallable(new CheckCCL());
521			try {
522			task.call();
523			} finally {
524			Policy.setPolicy(savedPolicy);
525			}
526			}
527
528			/**
529			* callable(Runnable) returns null when called
530	jsr166	1.20	*/
531	jsr166	1.23	public void testCallable1() throws Exception {
532			Callable c = Executors.callable(new NoOpRunnable());
533			assertNull(c.call());
534	dl	1.11	}
535
536			/**
537			* callable(Runnable, result) returns result when called
538	jsr166	1.20	*/
539	jsr166	1.23	public void testCallable2() throws Exception {
540			Callable c = Executors.callable(new NoOpRunnable(), one);
541	jsr166	1.27	assertSame(one, c.call());
542	dl	1.11	}
543
544			/**
545			* callable(PrivilegedAction) returns its result when called
546	jsr166	1.20	*/
547	jsr166	1.23	public void testCallable3() throws Exception {
548			Callable c = Executors.callable(new PrivilegedAction() {
549			public Object run() { return one; }});
550	jsr166	1.27	assertSame(one, c.call());
551	dl	1.11	}
552
553			/**
554			* callable(PrivilegedExceptionAction) returns its result when called
555	jsr166	1.20	*/
556	jsr166	1.23	public void testCallable4() throws Exception {
557			Callable c = Executors.callable(new PrivilegedExceptionAction() {
558			public Object run() { return one; }});
559	jsr166	1.27	assertSame(one, c.call());
560	dl	1.11	}
561
562
563			/**
564			* callable(null Runnable) throws NPE
565	jsr166	1.20	*/
566	dl	1.11	public void testCallableNPE1() {
567			try {
568	jsr166	1.23	Callable c = Executors.callable((Runnable) null);
569			shouldThrow();
570			} catch (NullPointerException success) {}
571	dl	1.11	}
572
573			/**
574			* callable(null, result) throws NPE
575	jsr166	1.20	*/
576	dl	1.11	public void testCallableNPE2() {
577			try {
578	jsr166	1.23	Callable c = Executors.callable((Runnable) null, one);
579			shouldThrow();
580			} catch (NullPointerException success) {}
581	dl	1.11	}
582
583			/**
584			* callable(null PrivilegedAction) throws NPE
585	jsr166	1.20	*/
586	dl	1.11	public void testCallableNPE3() {
587			try {
588	jsr166	1.23	Callable c = Executors.callable((PrivilegedAction) null);
589			shouldThrow();
590			} catch (NullPointerException success) {}
591	dl	1.11	}
592
593			/**
594			* callable(null PrivilegedExceptionAction) throws NPE
595	jsr166	1.20	*/
596	dl	1.11	public void testCallableNPE4() {
597			try {
598	jsr166	1.23	Callable c = Executors.callable((PrivilegedExceptionAction) null);
599			shouldThrow();
600			} catch (NullPointerException success) {}
601	dl	1.11	}
602
603	dl	1.1
604			}