Javascript 酶如何检查组件的可见性？

我附上了一个问题的精简版本。我有一个简单的复选框，我使用不透明度隐藏它：0，这取决于传递到包含该复选框的组件中的内容（在本例中为MyCheckbox）

MyCheckBox.js

MyCheckbox.test.js

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您可以从测试库中试用jest dom，但如果您想了解他们是如何实现您想要的，请查看他们的代码：

谢谢。看起来是我需要的。当我尝试它的时候，我得到了期望…不，tobevicible不是一个函数。请参见此处更新的CodeSandbox-->

import React from "react";
import "./styles.css";
import { Checkbox, makeStyles } from "@material-ui/core";

const useStyles = makeStyles({
  checkboxHiddenStyle: {
    opacity: 0
  }
});

export default function MyCheckbox(props) {
  const styles = useStyles(props);
  return (
    <div>
      <Checkbox
        {...props}
        className={props.data.length === 0 && styles.checkboxHiddenStyle}
      />
    </div>
  );
}

import React from "react";
import MyCheckbox from "./MyCheckbox";
import "./styles.css";

export default function MyCheckboxesInUse() {
  const arrayWithNothing = [];
  const arrayWithSomething = [1];
  return (
    <div className="App">
      <h1>Hidden Checkbox</h1>
      <MyCheckbox data={arrayWithNothing} />
      <h1>Visible Checkbox</h1>
      <MyCheckbox data={arrayWithSomething} />
    </div>
  );
}

import React from "react";

import Enzyme, { mount } from "enzyme";
import Adapter from "enzyme-adapter-react-16";
import MyCheckboxesInUse from "./MyCheckboxesInUse";
import MyCheckbox from "./MyCheckbox";

Enzyme.configure({ adapter: new Adapter() });

test("Check that one checkbox is hidden and the other is visible", () => {
  const wrapper = mount(<MyCheckboxesInUse />);

  const checkboxes = wrapper.find(MyCheckbox);
  expect(checkboxes).toHaveLength(2);

  //HOW DO I CHECK THAT ONE IS VISIBLE AND THE OTHER IS NOT ?
});