### Question:
RpcAdminData { public Set<String> getAdditionalRpcServiceIds() { return additionalRpcServiceIds; } RpcAdminData();  RpcAdminData(Set<String> additionalRpcServiceIds); Set<String> getAdditionalRpcServiceIds(); void setAdditionalRpcServiceIds(Set<String> ids); void addAdditionalRpcServiceId(String id); void removeAdditionalRpcServiceId(String id); @Override boolean equals(Object obj); @Override int hashCode();  }### Answer:
@Test public void testGetAdditionalRpcServiceIds() { assertEquals(populatedIds, populated.getAdditionalRpcServiceIds()); assertEquals(Sets.newHashSet(), empty.getAdditionalRpcServiceIds()); assertEquals(Sets.newHashSet(), nullData.getAdditionalRpcServiceIds()); assertEquals(empty.getAdditionalRpcServiceIds(), nullData.getAdditionalRpcServiceIds()); assertFalse(populated.getAdditionalRpcServiceIds().equals(empty.getAdditionalRpcServiceIds())); }