Tooltip Text in Salesforce Lightning Aura Component

Sample Code:
<aura:component implements="force:appHostable" >
    <lightning:card>
        <div class="slds-m-around_medium">
            Test<lightning:helptext content="Testing Help Text"></lightning:helptext><lightning:input variant="label-hidden"></lightning:input>
        </div>
    </lightning:card>
</aura:component>
 
Output: