ant-design/components/affix/__tests__/demo.test.tsx

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import { spyElementPrototype } from 'rc-util/lib/test/domHook';
import * as React from 'react';
import demoTest, { rootPropsTest } from '../../../tests/shared/demoTest';
demoTest('affix', {
testRootProps: false,
});
rootPropsTest(
'affix',
(Affix, props) => (
<Affix {...props} className="fixed" target={() => document.querySelector('#holder')}>
Bamboo
</Affix>
),
{
beforeRender: () => {
spyElementPrototype(HTMLElement, 'getBoundingClientRect', function getBoundingClientRect() {
if (this.id === 'holder') {
return { top: 0, bottom: 100 };
}
if (this.className === 'fixed') {
return { top: -100, bottom: -100 };
}
return { top: 0, bottom: 0 };
});
},
findRootElements: () => document.querySelectorAll('.ant-affix'),
expectCount: 1,
},
);