Examples with Iterator java.util.Iterator used on opensource projects

Example 61 with Iterator

use of java.util.Iterator in project j2objc by google.

the class LinkedListTest method test_toArray$Ljava_lang_Object.

/**
	 * @tests java.util.LinkedList#toArray(java.lang.Object[])
	 */
public void test_toArray$Ljava_lang_Object() {
    // Test for method java.lang.Object []
    // java.util.LinkedList.toArray(java.lang.Object [])
    Integer[] argArray = new Integer[100];
    Object[] retArray;
    retArray = ll.toArray(argArray);
    assertTrue("Returned different array than passed", retArray == argArray);
    List retList = new LinkedList(Arrays.asList(retArray));
    Iterator li = ll.iterator();
    Iterator ri = retList.iterator();
    while (li.hasNext()) assertTrue("Lists are not equal", li.next() == ri.next());
    argArray = new Integer[1000];
    retArray = ll.toArray(argArray);
    assertNull("Failed to set first extra element to null", argArray[ll.size()]);
    for (int i = 0; i < ll.size(); i++) assertTrue("Returned incorrect array: " + i, retArray[i] == objArray[i]);
    ll.add(50, null);
    argArray = new Integer[101];
    retArray = ll.toArray(argArray);
    assertTrue("Returned different array than passed", retArray == argArray);
    retArray = ll.toArray(argArray);
    assertTrue("Returned different array than passed", retArray == argArray);
    retList = new LinkedList(Arrays.asList(retArray));
    li = ll.iterator();
    ri = retList.iterator();
    while (li.hasNext()) assertTrue("Lists are not equal", li.next() == ri.next());
}

Example 62 with Iterator

use of java.util.Iterator in project j2objc by google.

the class HashSetTest method test_clear.

/**
	 * @tests java.util.HashSet#clear()
	 */
public void test_clear() {
    // Test for method void java.util.HashSet.clear()
    Set orgSet = (Set) hs.clone();
    hs.clear();
    Iterator i = orgSet.iterator();
    assertEquals("Returned non-zero size after clear", 0, hs.size());
    while (i.hasNext()) assertTrue("Failed to clear set", !hs.contains(i.next()));
}

Example 63 with Iterator

use of java.util.Iterator in project j2objc by google.

the class CollectionsTest method test_reverseLjava_util_List.

/**
	 * @tests java.util.Collections#reverse(java.util.List)
	 */
public void test_reverseLjava_util_List() {
    // Test for method void java.util.Collections.reverse(java.util.List)
    try {
        Collections.reverse(null);
        fail("Expected NullPointerException for null list parameter");
    } catch (NullPointerException e) {
    //Expected
    }
    Collections.reverse(ll);
    Iterator i = ll.iterator();
    int count = objArray.length - 1;
    while (i.hasNext()) {
        assertEquals("Failed to reverse collection", objArray[count], i.next());
        --count;
    }
    ArrayList myList = new ArrayList();
    myList.add(null);
    myList.add(new Integer(20));
    Collections.reverse(myList);
    assertEquals("Did not reverse correctly--first element is: " + myList.get(0), new Integer(20), myList.get(0));
    assertNull("Did not reverse correctly--second element is: " + myList.get(1), myList.get(1));
}

Example 64 with Iterator

use of java.util.Iterator in project j2objc by google.

the class CollectionsTest method test_unmodifiableSortedMapLjava_util_SortedMap.

/**
	 * @tests java.util.Collections#unmodifiableSortedMap(java.util.SortedMap)
	 */
public void test_unmodifiableSortedMapLjava_util_SortedMap() {
    // Test for method java.util.SortedMap
    // java.util.Collections.unmodifiableSortedMap(java.util.SortedMap)
    boolean exception = false;
    TreeMap tm = new TreeMap();
    tm.putAll(hm);
    Map c = Collections.unmodifiableSortedMap(tm);
    assertTrue("Returned map is of incorrect size", c.size() == tm.size());
    Iterator i = hm.keySet().iterator();
    while (i.hasNext()) {
        Object x = i.next();
        assertTrue("Returned map missing elements", c.get(x).equals(tm.get(x)));
    }
    try {
        c.put(new Object(), "");
    } catch (UnsupportedOperationException e) {
        exception = true;
    // Correct
    }
    if (!exception) {
        fail("Allowed modification of map");
    }
    try {
        c.remove(new Object());
    } catch (UnsupportedOperationException e) {
        // Correct
        return;
    }
    fail("Allowed modification of map");
}

Example 65 with Iterator

use of java.util.Iterator in project j2objc by google.

the class LinkedHashSetTest method test_iterator.

/**
	 * @tests java.util.LinkedHashSet#iterator()
	 */
public void test_iterator() {
    // Test for method java.util.Iterator java.util.LinkedHashSet.iterator()
    Iterator i = hs.iterator();
    int x = 0;
    int j;
    for (j = 0; i.hasNext(); j++) {
        Object oo = i.next();
        if (oo != null) {
            Integer ii = (Integer) oo;
            assertTrue("Incorrect element found", ii.intValue() == j);
        } else {
            assertTrue("Cannot find null", hs.contains(oo));
        }
        ++x;
    }
    assertTrue("Returned iteration of incorrect size", hs.size() == x);
    LinkedHashSet s = new LinkedHashSet();
    s.add(null);
    assertNull("Cannot handle null", s.iterator().next());
}