Examples with LinkedBlockingDeque java.util.concurrent.LinkedBlockingDeque used on opensource projects

Example 41 with LinkedBlockingDeque

use of java.util.concurrent.LinkedBlockingDeque in project mapdb by jankotek.

the class LinkedBlockingDequeTest method testIterator.

/**
     * iterator iterates through all elements
     */
public void testIterator() throws InterruptedException {
    LinkedBlockingDeque q = populatedDeque(SIZE);
    Iterator it = q.iterator();
    int i;
    for (i = 0; it.hasNext(); i++) assertTrue(q.contains(it.next()));
    assertEquals(i, SIZE);
    assertIteratorExhausted(it);
    it = q.iterator();
    for (i = 0; it.hasNext(); i++) assertEquals(it.next(), q.take());
    assertEquals(i, SIZE);
    assertIteratorExhausted(it);
}

Example 42 with LinkedBlockingDeque

use of java.util.concurrent.LinkedBlockingDeque in project mapdb by jankotek.

the class LinkedBlockingDequeTest method testAddFirst.

/**
     * peekFirst returns element inserted with addFirst
     */
public void testAddFirst() {
    LinkedBlockingDeque q = populatedDeque(3);
    q.pollLast();
    q.addFirst(four);
    assertSame(four, q.peekFirst());
}

Example 43 with LinkedBlockingDeque

use of java.util.concurrent.LinkedBlockingDeque in project mapdb by jankotek.

the class LinkedBlockingDequeTest method testPutFirst.

/**
     * all elements successfully putFirst are contained
     */
public void testPutFirst() throws InterruptedException {
    LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        Integer x = new Integer(i);
        q.putFirst(x);
        assertTrue(q.contains(x));
    }
    assertEquals(0, q.remainingCapacity());
}

Example 44 with LinkedBlockingDeque

use of java.util.concurrent.LinkedBlockingDeque in project mapdb by jankotek.

the class LinkedBlockingDequeTest method testPeekFirst.

/**
     * peekFirst returns next element, or null if empty
     */
public void testPeekFirst() {
    LinkedBlockingDeque q = populatedDeque(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        assertEquals(i, q.peekFirst());
        assertEquals(i, q.pollFirst());
        assertTrue(q.peekFirst() == null || !q.peekFirst().equals(i));
    }
    assertNull(q.peekFirst());
}

Example 45 with LinkedBlockingDeque

use of java.util.concurrent.LinkedBlockingDeque in project mapdb by jankotek.

the class LinkedBlockingDequeTest method testPush.

/**
     * push succeeds if not full; throws ISE if full
     */
public void testPush() {
    LinkedBlockingDeque q = new LinkedBlockingDeque(SIZE);
    for (int i = 0; i < SIZE; ++i) {
        Integer x = new Integer(i);
        q.push(x);
        assertEquals(x, q.peek());
    }
    assertEquals(0, q.remainingCapacity());
    try {
        q.push(new Integer(SIZE));
        shouldThrow();
    } catch (IllegalStateException success) {
    }
}