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package org.apache.juneau.utils; | |
import static org.apache.juneau.TestUtils.*; | |
import static org.junit.Assert.*; | |
import java.util.*; | |
import org.apache.juneau.internal.*; | |
import org.junit.*; | |
@SuppressWarnings("javadoc") | |
public class MultiSetTest { | |
@Test | |
@SuppressWarnings({ "unchecked" }) | |
public void doTest() throws Exception { | |
List<String> l1, l2; | |
MultiSet<String> ms; | |
Iterator<String> i; | |
l1 = Arrays.asList(new String[]{"1","2"}); | |
l2 = Arrays.asList(new String[]{"3","4"}); | |
ms = new MultiSet<String>(l1, l2); | |
i = ms.iterator(); | |
assertTrue(i.hasNext()); | |
assertEquals("1", i.next()); | |
assertTrue(i.hasNext()); | |
assertEquals("2", i.next()); | |
assertTrue(i.hasNext()); | |
assertEquals("3", i.next()); | |
assertTrue(i.hasNext()); | |
assertEquals("4", i.next()); | |
assertFalse(i.hasNext()); | |
try { | |
i.next(); | |
fail("Exception expected"); | |
} catch (NoSuchElementException e) { | |
} | |
l1 = Arrays.asList(new String[]{"1","2"}); | |
l2 = Arrays.asList(new String[]{}); | |
ms = new MultiSet<String>(l1, l2); | |
i = ms.iterator(); | |
assertTrue(i.hasNext()); | |
assertEquals("1", i.next()); | |
assertTrue(i.hasNext()); | |
assertEquals("2", i.next()); | |
assertFalse(i.hasNext()); | |
try { | |
i.next(); | |
fail("Exception expected"); | |
} catch (NoSuchElementException e) { | |
} | |
l1 = Arrays.asList(new String[]{}); | |
l2 = Arrays.asList(new String[]{"3","4"}); | |
ms = new MultiSet<String>(l1, l2); | |
i = ms.iterator(); | |
assertTrue(i.hasNext()); | |
assertEquals("3", i.next()); | |
assertTrue(i.hasNext()); | |
assertEquals("4", i.next()); | |
assertFalse(i.hasNext()); | |
try { | |
i.next(); | |
fail("Exception expected"); | |
} catch (NoSuchElementException e) { | |
} | |
l1 = Arrays.asList(new String[]{}); | |
l2 = Arrays.asList(new String[]{}); | |
ms = new MultiSet<String>(l1, l2); | |
i = ms.iterator(); | |
assertFalse(i.hasNext()); | |
try { | |
i.next(); | |
fail("Exception expected"); | |
} catch (NoSuchElementException e) { | |
} | |
l1 = Arrays.asList(new String[]{"1","2"}); | |
ms = new MultiSet<String>(l1); | |
i = ms.iterator(); | |
assertTrue(i.hasNext()); | |
assertEquals("1", i.next()); | |
assertTrue(i.hasNext()); | |
assertEquals("2", i.next()); | |
assertFalse(i.hasNext()); | |
try { | |
i.next(); | |
fail("Exception expected"); | |
} catch (NoSuchElementException e) { | |
} | |
l1 = new LinkedList<String>(Arrays.asList(new String[]{"1","2"})); | |
l2 = new LinkedList<String>(Arrays.asList(new String[]{"3","4"})); | |
ms = new MultiSet<String>(l1).append(l2); | |
assertObjectEquals("['1','2','3','4']", ms); | |
assertObjectEquals("['1','2','3','4']", ms.enumerator()); | |
assertEquals(4, ms.size()); | |
Iterator<String> t = ms.iterator(); | |
t.next(); | |
t.remove(); | |
assertObjectEquals("['2','3','4']", ms.enumerator()); | |
t = ms.iterator(); | |
t.next(); | |
t.remove(); | |
assertObjectEquals("['3','4']", ms.enumerator()); | |
t = ms.iterator(); | |
t.next(); | |
t.remove(); | |
assertObjectEquals("['4']", ms.enumerator()); | |
t = ms.iterator(); | |
t.next(); | |
t.remove(); | |
assertObjectEquals("[]", ms.enumerator()); | |
assertEquals(0, ms.size()); | |
ms = new MultiSet<String>(); | |
assertObjectEquals("[]", ms); | |
assertEquals(0, ms.size()); | |
try { ms = new MultiSet<String>((Collection<String>)null); fail(); } catch (IllegalArgumentException e) {} | |
try { new MultiSet<String>().iterator().next(); fail(); } catch (NoSuchElementException e) {} | |
try { new MultiSet<String>().iterator().remove(); fail(); } catch (NoSuchElementException e) {} | |
} | |
} |