react-native/Libraries/CustomComponents/Lists/__flowtests__/SectionList-flowtest.js

90 lines
2.5 KiB
JavaScript

/**
* Copyright (c) 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @flow
*/
'use strict';
const React = require('react');
const SectionList = require('SectionList');
function renderMyListItem(info: {item: {title: string}, index: number}) {
return <span />;
}
const renderMyHeader = ({section}: {section: {fooNumber: number} & Object}) => <span />;
module.exports = {
testGoodDataWithGoodItem() {
const sections = [{
key: 'a', data: [{
title: 'foo',
key: 1,
}],
}];
return <SectionList renderItem={renderMyListItem} sections={sections} />;
},
testBadRenderItemFunction() {
const sections = [{
key: 'a', data: [{
title: 'foo',
key: 1,
}],
}];
return [
// $FlowExpectedError - title should be inside `item`
<SectionList renderItem={(info: {title: string}) => <span /> } sections={sections} />,
// $FlowExpectedError - bad index type string, should be number
<SectionList renderItem={(info: {index: string}) => <span /> } sections={sections} />,
// EverythingIsFine
<SectionList renderItem={(info: {item: {title: string}}) => <span /> } sections={sections} />,
];
},
testBadInheritedDefaultProp(): React.Element<*> {
const sections = [];
// $FlowExpectedError - bad windowSize type "big"
return <SectionList renderItem={renderMyListItem} sections={sections} windowSize="big" />;
},
testMissingData(): React.Element<*> {
// $FlowExpectedError - missing `sections` prop
return <SectionList renderItem={renderMyListItem} />;
},
testBadSectionsShape(): React.Element<*> {
const sections = [{
key: 'a', items: [{
title: 'foo',
key: 1,
}],
}];
// $FlowExpectedError - section missing `data` field
return <SectionList renderItem={renderMyListItem} sections={sections} />;
},
testBadSectionsMetadata(): React.Element<*> {
// $FlowExpectedError - section has bad meta data `fooNumber` field of type string
const sections = [{
key: 'a', fooNumber: 'string', data: [{
title: 'foo',
key: 1,
}],
}];
return (
<SectionList
renderSectionHeader={renderMyHeader}
renderItem={renderMyListItem}
sections={sections}
/>
);
},
};