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26 lines
648 B
TypeScript
26 lines
648 B
TypeScript
// eslint-disable-next-line import/no-extraneous-dependencies
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import RE2 from 're2';
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import { CONFIG_VALIDATION } from '../constants/error-messages';
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import { regEx } from './regex';
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describe('util/regex', () => {
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beforeEach(() => {
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jest.resetModules();
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});
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it('uses RE2', () => {
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expect(regEx('foo')).toBeInstanceOf(RE2);
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});
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it('throws unsafe 2', () => {
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expect(() => regEx(`x++`)).toThrow(CONFIG_VALIDATION);
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});
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it('Falls back to RegExp', () => {
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jest.doMock('re2', () => {
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throw new Error();
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});
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const regex = require('./regex');
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expect(regex.regEx('foo')).toBeInstanceOf(RegExp);
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});
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});
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