erty(&quot;age&quot;, 0).iterate();</b>
<b class="fc">&nbsp;        Assert.assertEquals(12, this.sqlgGraph.traversal().V().count().next(), 0);</b>
<b class="fc">&nbsp;        Assert.assertEquals(6, this.sqlgGraph.traversal().V().has(&quot;animal&quot;, &quot;age&quot;, 0).count().next(), 0);</b>
&nbsp;    }
&nbsp;
&nbsp;    @Test
&nbsp;    public void testCreateEmptyVertex() throws SQLException {
<b class="fc">&nbsp;        sqlgGraph.addVertex();</b>
<b class="fc">&nbsp;        sqlgGraph.tx().commit();</b>
