@Test
public void testPutReturnValue() {
cache.put(1, "apple");
assertNotNull(cache.put(1, "banana"));
Clock.setTime(3000);
assertNull(cache.put(1, "mango"));
}
@Test
public void testSize() throws Exception {
assertEquals(0, cache.size());
cache.put(1, "apple");
assertEquals(1, cache.size());
Clock.setTime(3000);
assertEquals(0, cache.size());
}
@Test
public void testExpiry() throws Exception {
cache.put(1, "apple");
assertEquals("apple", cache.get(1));
assertFalse(cache.isEmpty());
Clock.setTime(3000);
assertNull(cache.get(1));
assertTrue(cache.isEmpty());
}
@Test
public void testRemove() throws Exception {
assertNull(cache.remove(new Integer(1)));
cache.put(new Integer(1), "apple");
assertEquals("apple", cache.remove(new Integer(1)));
assertNull(cache.get(new Integer(1)));
assertEquals(0, cache.size());
}
@Test
public void testPartialExpiry() throws Exception {
// Add an apple, it will expire at 2000
// System.out.println(cache.getTimeToLive());
cache.put(1, "apple");
Clock.setTime(1500);
// System.out.println(cache.getTimeToLive());
// Add an orange, it will expire at 2500
cache.put(2, "orange");
assertEquals("apple", cache.get(1));
assertEquals("orange", cache.get(2));
assertEquals(2, cache.size());
// Set time to 2300 and check that only the apple has disappeared
Clock.setTime(2300);
assertNull(cache.get(1));
assertEquals("orange", cache.get(2));
assertEquals(1, cache.size());
}
@Test
public void testContainsKeyAndContainsValue() {
assertFalse(cache.containsKey(1));
assertFalse(cache.containsValue("apple"));
assertFalse(cache.containsKey(2));
assertFalse(cache.containsValue("orange"));
cache.put(1, "apple");
assertTrue(cache.containsKey(1));
assertTrue(cache.containsValue("apple"));
assertFalse(cache.containsKey(2));
assertFalse(cache.containsValue("orange"));
Clock.setTime(3000);
assertFalse(cache.containsKey(1));
assertFalse(cache.containsValue("apple"));
assertFalse(cache.containsKey(2));
assertFalse(cache.containsValue("orange"));
}
@Before
public void setUp() throws Exception {
Clock.setTime(1000);
cache = new CacheMapImpl<>();
cache.setTimeToLive(TIME_TO_LIVE);
}