30 lines
741 B
JavaScript
30 lines
741 B
JavaScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @emails react-core
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*/
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'use strict';
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describe('ReactSymbols', () => {
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beforeEach(() => jest.resetModules());
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const expectToBeUnique = keyValuePairs => {
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const map = new Map();
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keyValuePairs.forEach(([key, value]) => {
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if (map.has(value)) {
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throw Error(
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`${key} value ${value.toString()} is the same as ${map.get(value)}.`,
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);
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}
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map.set(value, key);
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});
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};
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it('Symbol values should be unique', () => {
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expectToBeUnique(Object.entries(require('shared/ReactSymbols')));
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});
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});
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