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  package org.apache.cayenne.modeler.action;
  
  import org.apache.cayenne.configuration.DataChannelDescriptor;
  import org.apache.cayenne.configuration.DataNodeDescriptor;
  import org.apache.cayenne.configuration.DataSourceDescriptor;
  import org.junit.Test;
  
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertSame;
  
  public class CreateNodeActionTest {
  
      @Test
      public void testCreateDataNode() {
          CreateNodeAction action;
  
          try {
              action = new CreateNodeAction(null);
          } catch (InternalError e) {
              // caused by headless server running the tests ...
              // TODO: setup test environment DISPLAY variable
              return;
          }
  
          DataChannelDescriptor domain = new DataChannelDescriptor();
          domain.setName("aa");
          DataNodeDescriptor node = action.buildDataNode(domain);
  
          assertNotNull(node);
          assertNotNull(node.getName());
  
          DataSourceDescriptor ds1 = new DataSourceDescriptor();
          node.setDataSourceDescriptor(ds1);
  
          assertSame("Project DataNode must not wrap the DataSource", ds1, node.getDataSourceDescriptor());
      }
  }
  