assertNotNull(p2);
assertEquals(EntityStates.T_START_BODYPART, p2.getState());
p2.advance();
assertEquals(EntityStates.T_START_HEADER, p2.getState());
p2.advance();
assertEquals(EntityStates.T_FIELD, p2.getState());
assertEquals("Content-Type", p2.getField().getName());
assertEquals(" text/plain; charset=US-ASCII", p2.getField().getBody());
p2.advance();
assertEquals(EntityStates.T_END_HEADER, p2.getState());