public void testPut() {
IntHashMap map = new IntHashMap();
assertNull(map.put(1, "hello"));
assertNull(map.put(2, "world"));
assertEquals(2, map.size());
assertEquals("hello", map.put(1, "hellooooo"));
}
public void testIsEmpty() {
IntHashMap map = new IntHashMap();
assertTrue(map.isEmpty());
assertNull(map.put(1, "hello"));
assertEquals(1, map.size());
assertFalse(map.isEmpty());
}
public void testClear() {
IntHashMap map = new IntHashMap();
assertNull(map.put(1, "hello"));
assertNull(map.put(2, "world"));
assertEquals(2, map.size());
map.clear();
assertEquals(0, map.size());
}
public void testContainsKey() {
IntHashMap map = new IntHashMap();
assertNull(map.put(1, "hello"));
assertNull(map.put(2, "world"));
assertEquals(2, map.size());
assertTrue(map.containsKey(1));
assertTrue(map.containsKey(2));
assertFalse(map.containsKey(3));
}
public static <V> IntHashMap<V> copy(Map<Integer, V> target) {
if (target == null) {
throw new NullPointerException("target must not be null");
}
final IntHashMap<V> copyMap = new IntHashMap<V>();
for (Map.Entry<Integer, V> entry : target.entrySet()) {
copyMap.put(entry.getKey(), entry.getValue());
}
return copyMap;
}
public void testRemove() {
IntHashMap map = new IntHashMap();
assertNull(map.put(1, "hello"));
assertNull(map.put(2, "world"));
assertEquals(2, map.size());
assertEquals("hello", map.remove(1));
assertEquals(1, map.size());
assertNull(map.remove(3));
}
public void testConstructor() {
try {
new IntHashMap(-1, 0.0f);
fail();
} catch (IllegalArgumentException e) {
assertEquals("Illegal Capacity: -1", e.getMessage());
}
try {
new IntHashMap(1, 0.0f);
fail();
} catch (IllegalArgumentException e) {
assertEquals("Illegal Load: 0.0", e.getMessage());
}
new IntHashMap(0, 1.0f);
try {
new IntHashMap(-1);
fail();
} catch (IllegalArgumentException e) {
assertEquals("Illegal Capacity: -1", e.getMessage());
}
IntHashMap map1 = new IntHashMap(0);
assertEquals(0, map1.size());
}
public void testContainsValue() {
IntHashMap map = new IntHashMap();
assertNull(map.put(1, "hello"));
assertNull(map.put(2, "world"));
assertEquals(2, map.size());
assertTrue(map.containsValue("hello"));
assertTrue(map.containsValue("world"));
assertFalse(map.containsValue("goodbye"));
try {
map.containsValue(null);
fail();
} catch (NullPointerException e) {
}
}
/** {@inheritDoc} */
public String name(int value) {
return (String) mapValueToName.get(value);
}
/** {@inheritDoc} */
public void add(String name, int value) {
mapNameToValue.put(name, new Integer(value));
mapValueToName.put(value, name);
}
public final int hashCode() {
return IntHashMap.getHash(hashEntry);
}