@Test
public void testWithNullAsKeyAndValue() throws Exception {
final T cache = getInstance(1000, 1000);
assertEquals(0, (long) cache.size());
assertFalse(cache.contains(null));
assertNull(cache.get(null));
// Add entry with null as key and value ...
cache.put(null, null);
assertEquals(1, (long) cache.size());
assertTrue(cache.contains(null));
assertNull(cache.get(null));
// Add another entry ...
cache.put(new Object(), new Object());
assertEquals(2, (long) cache.size());
// Remove entry with null as key ...
assertNull(cache.remove(null).getValue());
assertEquals(1, (long) cache.size());
assertFalse(cache.contains(null));
assertNull(cache.get(null));
// Try to remove entry with null as key again ...
assertNull(cache.remove(null));
assertEquals(1, (long) cache.size());
assertFalse(cache.contains(null));
assertNull(cache.get(null));
}
@Test
public void testWithMaxSize1() {
final T cache = getInstance(1000, 1);
final Object o1 = new Object();
cache.put(o1, o1);
final Object o2 = new Object();
cache.put(o2, o2);
assertEquals(1, (long) cache.size());
assertFalse(cache.contains(o1));
assertTrue(cache.contains(o2));
}
@Test
public void testMaxLifeTimeSupport() throws Exception {
final T cache = getInstance(100, 100);
cache.put("varA", "valueA");
cache.put("varB", "valueB");
Thread.sleep(70);
cache.put("varC", "valueC");
assertEquals("valueA", cache.get("varA"));
assertEquals("valueB", cache.get("varB"));
assertEquals("valueC", cache.get("varC"));
Thread.sleep(70);
assertNull("valueA", cache.get("varA"));
assertNull("valueB", cache.get("varB"));
assertEquals("valueC", cache.get("varC"));
Thread.sleep(70);
assertNull("valueA", cache.get("varA"));
assertNull("valueB", cache.get("varB"));
assertNull("valueC", cache.get("varC"));
}
@Test
public void testWithNullAsValue() throws Exception {
final T cache = getInstance(1000, 1000);
final Object o = new Object();
assertEquals(0, (long) cache.size());
assertFalse(cache.contains(o));
assertNull(cache.get(o));
// Add entry with null as value ...
cache.put(o, null);
assertEquals(1, (long) cache.size());
assertTrue(cache.contains(o));
assertNull(cache.get(o));
// Remove entry with null as value ...
assertNull(cache.remove(o).getValue());
assertEquals(0, (long) cache.size());
assertFalse(cache.contains(o));
assertNull(cache.get(o));
// Try to remove entry with null as value again ...
assertNull(cache.remove(o));
assertEquals(0, (long) cache.size());
assertFalse(cache.contains(o));
assertNull(cache.get(o));
}