@Test
public void testRemoveWithKeyAndRemoveReturnsNull() throws Exception {
final SharedHashMap<CharSequence, CharSequence> map =
new SharedHashMapBuilder()
.minSegments(2)
.removeReturnsNull(true)
.create(getPersistenceFile(), CharSequence.class, CharSequence.class);
assertFalse(map.containsKey("key3"));
map.put("key1", "one");
map.put("key2", "two");
assertEquals(2, map.size());
assertTrue(map.containsKey("key1"));
assertTrue(map.containsKey("key2"));
assertFalse(map.containsKey("key3"));
assertEquals("one", map.get("key1"));
assertEquals("two", map.get("key2"));
final CharSequence result = map.remove("key1");
assertEquals(null, result);
assertEquals(1, map.size());
assertFalse(map.containsKey("key1"));
assertEquals(null, map.get("key1"));
assertEquals("two", map.get("key2"));
assertFalse(map.containsKey("key3"));
// lets add one more item for luck !
map.put("key3", "three");
assertEquals("three", map.get("key3"));
assertTrue(map.containsKey("key3"));
assertEquals(2, map.size());
// and just for kicks we'll overwrite what we have
map.put("key3", "overwritten");
assertEquals("overwritten", map.get("key3"));
assertTrue(map.containsKey("key3"));
assertEquals(2, map.size());
}
