@Test
public void loadOldConfigurationsReturnsNull() {
ConvertConfigurationAnswerElement oldConvertAnswer = new ConvertConfigurationAnswerElement();
oldConvertAnswer.setVersion(INCOMPATIBLE_VERSION);
assertThat(
"should not be compatible with current code",
Version.isCompatibleVersion("current", "old test", oldConvertAnswer.getVersion()),
equalTo(false));
NetworkId network = new NetworkId("network");
SnapshotId snapshot = new SnapshotId("snapshot");
Map<String, Configuration> configs = new HashMap<>();
configs.put("node1", new Configuration("node1", ConfigurationFormat.CISCO_IOS));
_storage.storeConfigurations(configs, oldConvertAnswer, network, snapshot);
assertThat(_storage.loadConfigurations(network, snapshot), nullValue());
}