Java tutorial
/** * (c) 2009-2014 Peter Wullinger * * $Id$ * * Use, modification and restribution of this file are covered by the * terms of the Artistic License 2.0. * * You should have received a copy of the license terms in a file named * "LICENSE" together with this software package. * * Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT * HOLDER AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR * A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE * EXTENT PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO * COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT * OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. **/ package de.dhke.projects.cutil.collections.aspect; import java.util.ArrayList; import java.util.Arrays; import java.util.Collection; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; import org.apache.commons.collections15.MultiMap; import org.apache.commons.collections15.keyvalue.DefaultMapEntry; import org.apache.commons.collections15.multimap.MultiHashMap; import org.junit.After; import org.junit.AfterClass; import static org.junit.Assert.*; import org.junit.Before; import org.junit.BeforeClass; import org.junit.Test; /** * * @author Peter Wullinger <java@dhke.de> */ public class AspectMultiMapKeySetTest { private MultiMap<String, String> _baseMap; private AspectMultiMap<String, String, MultiMap<String, String>> _aspectMap; private AspectCollectionHistoryListener<Map.Entry<String, String>, MultiMap<String, String>> _listener; private Set<String> _keySet; public AspectMultiMapKeySetTest() { } @BeforeClass public static void setUpClass() throws Exception { } @AfterClass public static void tearDownClass() throws Exception { } @Before public void setUp() { _baseMap = new MultiHashMap<>(); _baseMap.put("1", "a"); _baseMap.put("1", "A"); _baseMap.put("2", "b"); _baseMap.put("2", "B"); _baseMap.put("3", "c"); _baseMap.put("3", "C"); _aspectMap = AspectMultiMap.decorate(_baseMap, this); _listener = new AspectCollectionHistoryListener<>(); _aspectMap.getListeners().add(_listener); _keySet = _aspectMap.keySet(); } @After public void tearDown() { _keySet = null; _listener = null; _aspectMap = null; _baseMap = null; } /** * Test of size method, of class AspectMultiMapKeySet. */ @Test public void testSize() { assertEquals(3, _keySet.size()); _baseMap.remove("1"); assertEquals(2, _keySet.size()); } /** * Test of isEmpty method, of class AspectMultiMapKeySet. */ @Test public void testIsEmpty() { assertFalse(_keySet.isEmpty()); _baseMap.clear(); assertTrue(_keySet.isEmpty()); } /** * Test of contains method, of class AspectMultiMapKeySet. */ @Test public void testContains() { assertTrue(_keySet.contains("1")); assertTrue(_keySet.contains("2")); assertTrue(_keySet.contains("3")); assertFalse(_keySet.contains("_")); } /** * Test of iterator method, of class AspectMultiMapKeySet. */ @Test public void testIterator() { List<String> keys = new ArrayList<>(); keys.add("1"); keys.add("2"); keys.add("3"); Iterator<String> iter = _keySet.iterator(); while (iter.hasNext()) assertTrue(keys.remove(iter.next())); assertFalse(iter.hasNext()); assertTrue(keys.isEmpty()); } /** * Test of iterator method, of class AspectMultiMapKeySet. */ @Test public void testIterator_remove() { Iterator<String> iter = _keySet.iterator(); iter.next(); String key = iter.next(); /* we need to create a copy, as the removal drops the values from the returned collection */ Collection<String> values = new ArrayList<>(_aspectMap.get(key)); iter.remove(); assertFalse(_aspectMap.containsKey(key)); assertEquals(2, _listener.beforeRemoveEvents.size()); for (String value : values) assertTrue( TestHelper.eventListContains(new DefaultMapEntry<>(key, value), _listener.beforeRemoveEvents)); assertEquals(2, _listener.afterRemoveEvents.size()); for (String value : values) assertTrue( TestHelper.eventListContains(new DefaultMapEntry<>(key, value), _listener.afterRemoveEvents)); } /** * Test of iterator method, of class AspectMultiMapKeySet. */ @Test public void testIterator_remove_veto() { _listener.vetoRemove = true; Iterator<String> iter = _keySet.iterator(); iter.next(); String key = iter.next(); Collection<String> values = new ArrayList<>(_aspectMap.get(key)); try { iter.remove(); fail("Remove veto not raised"); } catch (AssertionError ex) { /* ignore */ } assertTrue(_aspectMap.containsKey(key)); TestHelper.assertSequenceEquals(_aspectMap.get(key), values); assertTrue(_listener.beforeRemoveEvents.isEmpty()); assertTrue(_listener.afterRemoveEvents.isEmpty()); } /** * Test of toArray method, of class AspectMultiMapKeySet. */ @Test public void testToArray_0args() { assertArrayEquals(_baseMap.keySet().toArray(), _keySet.toArray()); } /** * Test of toArray method, of class AspectMultiMapKeySet. */ @Test public void testToArray_GenericType() { assertArrayEquals(_baseMap.keySet().toArray(new String[0]), _keySet.toArray(new String[_keySet.size()])); } /** * Test of add method, of class AspectMultiMapKeySet. */ @Test(expected = UnsupportedOperationException.class) public void testAdd() { _keySet.add("_"); } /** * Test of remove method, of class AspectMultiMapKeySet. */ @Test public void testRemove() { assertFalse(_keySet.remove("_")); assertTrue(_keySet.remove("1")); assertFalse(_aspectMap.containsKey("1")); assertEquals(2, _listener.beforeRemoveEvents.size()); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("1", "a"), _listener.beforeRemoveEvents)); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("1", "A"), _listener.beforeRemoveEvents)); assertEquals(2, _listener.afterRemoveEvents.size()); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("1", "a"), _listener.afterRemoveEvents)); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("1", "A"), _listener.afterRemoveEvents)); } /** * Test of remove method, of class AspectMultiMapKeySet. */ @Test public void testRemove_veto() { _listener.vetoRemove = true; assertFalse(_keySet.remove("_")); try { _keySet.remove("1"); fail("Remove veto not raised"); } catch (AssertionError ex) { /* ignore */ } assertTrue(_aspectMap.containsKey("1")); assertTrue(_listener.beforeRemoveEvents.isEmpty()); assertTrue(_listener.afterRemoveEvents.isEmpty()); } /** * Test of containsAll method, of class AspectMultiMapKeySet. */ @Test public void testContainsAll() { assertTrue(_keySet.containsAll(Arrays.asList("1", "2", "3"))); assertTrue(_keySet.containsAll(Arrays.asList("1", "3"))); assertTrue(_keySet.containsAll(Arrays.asList("2"))); assertFalse(_keySet.containsAll(Arrays.asList("1", "2", "3", "4"))); assertFalse(_keySet.containsAll(Arrays.asList("4", "5", "6"))); } /** * Test of addAll method, of class AspectMultiMapKeySet. */ @Test(expected = UnsupportedOperationException.class) public void testAddAll() { _keySet.addAll(Arrays.asList(":", "_")); } /** * Test of retainAll method, of class AspectMultiMapKeySet. */ @Test public void testRetainAll() { assertFalse(_keySet.retainAll(Arrays.asList("1", "2", "3"))); assertTrue(_keySet.retainAll(Arrays.asList("1", "3"))); assertFalse(_aspectMap.containsKey("2")); assertEquals(2, _listener.beforeRemoveEvents.size()); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("2", "b"), _listener.beforeRemoveEvents)); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("2", "B"), _listener.beforeRemoveEvents)); assertEquals(2, _listener.afterRemoveEvents.size()); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("2", "b"), _listener.afterRemoveEvents)); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("2", "B"), _listener.afterRemoveEvents)); } /** * Test of retainAll method, of class AspectMultiMapKeySet. */ @Test public void testRetainAll_veto() { _listener.vetoRemove = true; assertFalse(_keySet.retainAll(Arrays.asList("1", "2", "3"))); try { _keySet.retainAll(Arrays.asList("1", "3")); fail("Remove veto not raised"); } catch (AssertionError ex) { /* ignore */ } assertTrue(_aspectMap.containsKey("2")); assertTrue(_listener.beforeRemoveEvents.isEmpty()); assertTrue(_listener.afterRemoveEvents.isEmpty()); } /** * Test of removeAll method, of class AspectMultiMapKeySet. */ @Test public void testRemoveAll() { assertFalse(_keySet.removeAll(Arrays.asList("4", "5"))); assertTrue(_keySet.removeAll(Arrays.asList("2", "4"))); assertFalse(_aspectMap.containsKey("2")); assertEquals(2, _listener.beforeRemoveEvents.size()); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("2", "b"), _listener.beforeRemoveEvents)); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("2", "B"), _listener.beforeRemoveEvents)); assertEquals(2, _listener.afterRemoveEvents.size()); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("2", "b"), _listener.afterRemoveEvents)); assertTrue(TestHelper.eventListContains(new DefaultMapEntry<>("2", "B"), _listener.afterRemoveEvents)); } /** * Test of removeAll method, of class AspectMultiMapKeySet. */ @Test public void testRemoveAll_veto() { _listener.vetoRemove = true; assertFalse(_keySet.removeAll(Arrays.asList("4", "5"))); try { _keySet.removeAll(Arrays.asList("2", "4")); fail("Remove veto not raised"); } catch (AssertionError ex) { /* ignore */ } assertTrue(_aspectMap.containsValue("2", "b")); assertTrue(_aspectMap.containsValue("2", "B")); assertTrue(_listener.beforeRemoveEvents.isEmpty()); assertTrue(_listener.afterRemoveEvents.isEmpty()); } /** * Test of clear method, of class AspectMultiMapKeySet. */ @Test public void testClear() { assertFalse(_aspectMap.isEmpty()); _keySet.clear(); assertTrue(_keySet.isEmpty()); assertTrue(_aspectMap.isEmpty()); assertEquals(1, _listener.beforeClearEvents.size()); assertEquals(1, _listener.afterClearEvents.size()); /* second clear does nothing */ _keySet.clear(); assertEquals(1, _listener.beforeClearEvents.size()); assertEquals(1, _listener.afterClearEvents.size()); } /** * Test of clear method, of class AspectMultiMapKeySet. */ @Test public void testClear_veto() { _listener.vetoClear = true; assertFalse(_aspectMap.isEmpty()); try { _keySet.clear(); fail("Clear veto not raised"); } catch (AssertionError ex) { /* ignore */ } assertFalse(_keySet.isEmpty()); _baseMap.clear(); /* second clear does nothing */ _keySet.clear(); assertTrue(_listener.beforeClearEvents.isEmpty()); assertTrue(_listener.afterClearEvents.isEmpty()); } }