Html 你能让Cypress测试为p—fileUpload做文件上传吗

我有一个应用程序，使使用p—fileUpload，我写了一个Cypress测试.

我想也许我可以使用selectFile方法来实现这个目标—但这并没有成功.

下面是我在html中实现的p—fileUpload:

<p-fileUpload
    name="files"
    [url]="url"
    accept="text/xml"
    [multiple]="true"
    (onBeforeUpload)="onBeforeUpload($event)"
    (onUpload)="onUpload($event.files, $event.originalEvent.body)"
    (onError)="onError($event.files, $event.originalEvent ? $event.originalEvent.body : $event.error)"
    [attr.data-cy]="'fileUpload'"
  ></p-fileUpload>

下面是我try 在Cypress测试中上传一个文件:

cy.get('[data-cy="fileUpload"]').should('be.visible')
        .then($upload => {

            cy.get('[data-cy="fileUpload"]').selectFile('cypress/fixtures/myfile.xlsx');

});

这是我得到的错误:

cy.selectFile() can only be called on an <input type="file"> or a <label for="fileInput"> pointing to or containing a file input, but received the element:
<p-fileupload _ngcontent-dan-c234="" name="files" accept="text/xml" class="p-element" ng-reflect-name="files" ng-reflect-accept="text/xml" ng-reflect-url="transaction/api/v2/upload/xml?" ng-reflect-multiple="true" data-cy="fileUpload">...</p-fileupload>

有什么建议吗？

谢谢