straint extends BaseTest {</b>
&nbsp;
&nbsp;    @Test
&nbsp;    public void testVertexLabelCheckConstraint() {
<b class="fc">&nbsp;        Schema publicSchema = this.sqlgGraph.getTopology().getPublicSchema();</b>
<b class="fc">&nbsp;        publicSchema.ensureVertexLabelExist(&quot;A&quot;, new HashMap&lt;&gt;() {{</b>
<b class="fc">&nbsp;            put(&quot;name&quot;, PropertyDefinition.of(PropertyType.STRING, Multiplicity.of(1, 1), null, &quot;(&quot; + sqlgGraph.getSqlDialect().maybeWrapInQoutes(&quot