Update acceptance test to new import flow

[MAILPOET-1626]

assets/js/src/subscribers/importExport/previous_next_step_buttons.jsx

@@ -21,6 +21,7 @@ const PreviousNextStepButtons = ({ canGoNext, onPreviousAction, onNextAction })
         
       <button
         type="button"
+        data-automation-id="import-next-step"
         className={nextStepClasses}
         onClick={() => {
           if (canGoNext) {

assets/js/src/subscribers/importExport/step_input_validation.jsx

@@ -64,6 +64,7 @@ class StepInputValidation extends Component {
             onChange={e => this.setState({ subscribersAgreed: e.target.checked })}
             name="subscribers_agreed"
             id="subscribers_agreed"
+            data-automation-id="subscribers_agreed"
           />
           {MailPoet.I18n.t('subscribersAgreed')}
         </label>
@@ -85,6 +86,7 @@ class StepInputValidation extends Component {
             onChange={e => this.setState({ sentOnceLastYear: e.target.checked })}
             name="sent_once_last_year"
             id="sent_once_last_year"
+            data-automation-id="sent_once_last_year"
           />
           {MailPoet.I18n.t('sentOnceYear')}
         </label>
@@ -101,6 +103,7 @@ class StepInputValidation extends Component {
             onChange={e => this.setState({ understand: e.target.checked })}
             name="understand"
             id="understand"
+            data-automation-id="input_understand"
           />
           {MailPoet.I18n.t('youUnderstand')}
         </label>

assets/js/src/subscribers/list.jsx

@@ -356,6 +356,7 @@ class SubscriberList extends React.Component {
           <a
             className="page-title-action"
             href="?page=mailpoet-import"
+            data-automation-id="import-subscribers-button"
           >
             {MailPoet.I18n.t('import')}
           </a>