Package org.grouplens.lenskit.collections

Examples of org.grouplens.lenskit.collections.IntIntervalList

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*/
public class IntIntervalListTest {

    @Test
    public void testEmptyList() {
        IntList list = new IntIntervalList(0);
        assertTrue(list.isEmpty());
        assertEquals(0, list.size());
        assertFalse(list.iterator().hasNext());
    }
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        assertFalse(list.iterator().hasNext());
    }

    @Test
    public void testEmptyRange() {
        IntList list = new IntIntervalList(5, 5);
        assertTrue(list.isEmpty());
        assertEquals(0, list.size());
        assertFalse(list.iterator().hasNext());
    }
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        assertFalse(list.iterator().hasNext());
    }

    @Test
    public void testSimpleListAccess() {
        IntList list = new IntIntervalList(1);
        assertFalse(list.isEmpty());
        assertEquals(1, list.size());
        assertEquals(0, list.getInt(0));
        try {
            list.getInt(1);
            fail("getInt(1) should throw");
        } catch (IndexOutOfBoundsException e) {
            /* no-op */
        }
        IntListIterator iter = list.iterator();
        assertTrue(iter.hasNext());
        assertFalse(iter.hasPrevious());
        assertEquals(0, iter.nextInt());
        assertFalse(iter.hasNext());
        assertTrue(iter.hasPrevious());
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        assertEquals(0, iter.previousInt());
    }

    @Test
    public void testSimpleIntervalAccess() {
        IntList list = new IntIntervalList(42, 43);
        assertFalse(list.isEmpty());
        assertEquals(1, list.size());
        assertEquals(42, list.getInt(0));
        try {
            list.getInt(1);
            fail("getInt(1) should throw");
        } catch (IndexOutOfBoundsException e) {
            /* no-op */
        }
        IntListIterator iter = list.iterator();
        assertTrue(iter.hasNext());
        assertFalse(iter.hasPrevious());
        assertEquals(42, iter.nextInt());
        assertFalse(iter.hasNext());
        assertTrue(iter.hasPrevious());
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        assertEquals(42, iter.previousInt());
    }

    @Test
    public void testBroaderInterval() {
        IntList list = new IntIntervalList(5);
        assertFalse(list.isEmpty());
        assertEquals(5, list.size());
        for (int i = 0; i < 5; i++) {
            assertEquals(i, list.getInt(i));
        }
        try {
            list.getInt(5);
            fail("getInt(5) should throw");
        } catch (IndexOutOfBoundsException e) {
            /* no-op */
        }
    }
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Related Classes of org.grouplens.lenskit.collections.IntIntervalList

  • org.grouplens.lenskit.collections.IntIntervalListTest
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