ConfigurationManagerImpl implements ConfigurationManager { @Override public ConfigurationNode removeNode(final String nodeId, final RootNode rootNode) throws IOException, UnknownNodeException { ConfigurationNode node = getNode(rootNode, nodeId); getNodes(rootNode).remove(node); save(); return node; } @Inject  ConfigurationManagerImpl(ConfigurationDao configurationDao); @Override List<ConfigurationNode> getNodes(final RootNode rootNode); @Override ConfigurationNode getNode(final RootNode rootNode, final String nodeId); @Override Optional<ConfigurationNode> findNode(final RootNode rootNode, final String excludedNodeId, final String label, final String path); @Override boolean addNode(final RootNode rootNode, final ConfigurationNode node); @Override Optional<ConfigurationNode> editNode(final RootNode rootNode, final String nodeId, final String label, final String path); @Override void save(); @Override ConfigurationNode removeNode(final String nodeId, final RootNode rootNode); @Override T getParameter(final ConfigurationParameter<T> parameter); @Override void setParameter(final ConfigurationParameter<T> parameter, final T value);  }
@Test public void testRemoveNode() throws IOException, UnknownNodeException { ConfigurationDao configurationDao = createMock(ConfigurationDao.class); ConfigurationNode configurationNode = new ConfigurationNode("nodeId", "label", "path"); expect(configurationDao.getNode(eq(ROOT), eq(configurationNode.getId()))).andReturn(configurationNode); expect(configurationDao.getNodes(eq(ROOT))).andReturn(Lists.newArrayList(configurationNode)); configurationDao.save(); expectLastCall(); replay(configurationDao); ConfigurationManager configurationManager = new ConfigurationManagerImpl(configurationDao); ConfigurationNode result = configurationManager.removeNode(configurationNode.getId(), ROOT); assertNotNull(result); assertEquals(result, configurationNode); verify(configurationDao); }