//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test void putGetRemove()
        internal virtual void PutGetRemove()
        {
            _map.put(0, 10);
            _map.put(1, 11);
            _map.put(2, 12);

            assertEquals(10, _map.get(0));
            assertEquals(11, _map.get(1));
            assertEquals(12, _map.get(2));
            // default empty value
            assertEquals(0, _map.get(3));

            _map.remove(1);
            _map.remove(2);
            _map.remove(0);

            assertEquals(0, _map.get(0));
            assertEquals(0, _map.get(1));
            assertEquals(0, _map.get(2));
        }