bsp;import org.apache.tinkerpop.gremlin.structure.Vertex;
&nbsp;import org.junit.Assert;
&nbsp;import org.junit.Test;
&nbsp;import org.umlg.sqlg.structure.PropertyDefinition;
&nbsp;import org.umlg.sqlg.structure.PropertyType;
&nbsp;import org.umlg.sqlg.structure.topology.VertexLabel;
&nbsp;
&nbsp;import java.util.HashMap;
&nbsp;
&nbsp;/**
&nbsp; * @author &lt;a href=&quot;https://github.com/pietermartin&quot;&gt;Pieter Martin&lt;/a&gt;
&nbsp; * Date: 2018/07/21
&nbsp; */
<b class="fc">&nbsp;public class Tes