### Question:
ConcreteZipIO { public static Map<String, Communication> openAsMap(String fn) { try { return new ConcreteZipArchive(fn); } catch (IOException e) { throw new RuntimeException(e); } }  static Iterable<Communication> read(String fn); static Stream<Communication> readAsStream(String fn); static Map<String, Communication> openAsMap(String fn); static void write(String fn, Iterable<Communication> comms); static void write(String fn, Stream<Communication> comms);  }### Answer:
@Test public void testOpenAsMap() { Map<String, Communication> comms = ConcreteZipIO.openAsMap(p); assertEquals("TEST", comms.get("simple_1").getType()); assertEquals("TEST", comms.get("simple_2").getType()); assertEquals("TEST", comms.get("simple_3").getType()); }