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Add annotations to fix future natural inference errors in xplat/js: 3/n #53285

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Add annotations to fix future natural inference errors in xplat/js: 3/n #53285

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11 changes: 8 additions & 3 deletions packages/react-native/Libraries/Utilities/__tests__/Platform-test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,8 @@
* @format
*/

import type {PlatformSelectSpec} from '../PlatformTypes';

// $FlowFixMe[missing-platform-support]
import PlatformAndroid from '../Platform.android';
// $FlowFixMe[missing-platform-support]
Expand All @@ -23,19 +25,22 @@ describe('Platform', () => {

describe('select', () => {
it('should return platform specific value', () => {
const obj = {ios: 'ios', android: 'android'};
const obj: PlatformSelectSpec<string> = {ios: 'ios', android: 'android'};
expect(PlatformIOS.select(obj)).toEqual(obj.ios);
expect(PlatformAndroid.select(obj)).toEqual(obj.android);
});

it('should return native value if no specific value was found', () => {
const obj = {native: 'native', default: 'default'};
const obj: PlatformSelectSpec<string> = {
native: 'native',
default: 'default',
};
expect(PlatformIOS.select(obj)).toEqual(obj.native);
expect(PlatformAndroid.select(obj)).toEqual(obj.native);
});

it('should return default value if no specific value was found', () => {
const obj = {default: 'default'};
const obj: PlatformSelectSpec<string> = {default: 'default'};
expect(PlatformIOS.select(obj)).toEqual(obj.default);
expect(PlatformAndroid.select(obj)).toEqual(obj.default);
});
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