@Override
  public Map<String, Table> getTables() {
    return ImmutableMap.copyOf(tables);
  }
@Test
  public void testGetTables() throws Exception {
    store.createTable(mockTable("hello"));
    store.createTable(mockTable("world"));

    assertEquals(2, store.getTables().size());
    assertThat(store.getTables(), Matchers.hasValue(mockTable("hello")));
    assertThat(store.getTables(), Matchers.hasValue(mockTable("world")));
  }