<fieldset>
    <legend class="text-fields-legend">
        {{yield}}
    </legend>
    <div class="row">
        {{#each textFields key="id" as |field index|}}
            <div class="col-xs-12 p-t-xs text-input-row">
                {{input data-test-multiple-textbox-input-index=index class="form-control ember-text-field" type="text" placeholder=placeholder value=field.value change=(action 'onChange') }}
                {{#if (and (gt textFields.length 1) (gt textFieldsLastIndex index) )}}
                    <button data-test-multiple-textbox-input-remove={{index}} class="btn btn-danger btn-small" onClick={{action 'removeTextField' index}} aria-label='Remove text field'>{{fa-icon 'minus'}}</button>
                {{else}}
                    <button data-test-multiple-textbox-input-add={{index}} class="btn btn-success btn-small" onClick={{action 'addTextField'}} aria-label='Add another text field'>{{fa-icon 'plus'}}</button>
                {{/if}}
            </div>
        {{/each}}
    </div>
</fieldset>

<fieldset>
    <legend class="text-fields-legend">
        {{yield}}
    </legend>
    <div class="row">
        {{#each textFields key="id" as |field index|}}
            <div data-test-multiple-textbox-index={{index}} class="col-xs-12 p-t-xs text-input-row">
                {{input class="form-control ember-text-field" type="text" placeholder=placeholder value=field.value change=(action 'onChange') }}
                {{#if (and (gt textFields.length 1) (gt textFieldsLastIndex index) )}}
                    <button data-test-multiple-textbox-input-remove={{index}} class="btn btn-danger btn-small" onClick={{action 'removeTextField' index}} aria-label='Remove text field'>{{fa-icon 'minus'}}</button>
                {{else}}
                    <button data-test-multiple-textbox-input-add={{index}} class="btn btn-success btn-small" onClick={{action 'addTextField'}} aria-label='Add another text field'>{{fa-icon 'plus'}}</button>
                {{/if}}
            </div>
        {{/each}}
    </div>
</fieldset>

Add data-test attr to multi-text input wrapping div
Add data-test attr to multi-text input wrapping div
