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39 lines
1,007 B
TypeScript
39 lines
1,007 B
TypeScript
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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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('reuses flags from regex', () => {
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expect(regEx(/foo/i).flags).toBe('iu');
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});
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it('caches non-stateful regex', () => {
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expect(regEx('foo')).toBe(regEx('foo'));
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expect(regEx('foo', 'm')).toBe(regEx('foo', 'm'));
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});
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it('does not cache stateful regex', () => {
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expect(regEx('foo', 'g')).not.toBe(regEx('foo', 'g'));
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expect(regEx(/bar/g)).not.toBe(/bar/g);
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});
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it('Falls back to RegExp', async () => {
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vi.resetModules();
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vi.doMock('../expose.cjs', () => ({
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re2: () => {
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throw new Error();
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},
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}));
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const regex = await import('./regex.js');
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expect(regex.regEx('foo')).toBeInstanceOf(RegExp);
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});
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});
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