assertFalse(fs.isEmpty());
assertEquals("flintstone",fs.get("fred"));
assertEquals("rubble",fs.get("barney"));
assertEquals(3, fs.size());
assertTrue(fs.containsKey("test"));
assertTrue(fs.containsKey("barney"));
assertTrue(fs.containsValue("value"));
assertFalse(fs.containsKey("wilma"));
// the state immediately following this one the map should still contain the previous entries