44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
// @flow strict-local
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import assert from 'assert';
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import {getPublicId} from '../src/utils';
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const id = '0123456789abcdef0123456789abcdef';
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const fullPublicId = '296TIIbB3u904riPYGPJJ';
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describe('getPublicId', () => {
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it('only accepts 32-character hexadecimal strings', () => {
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assert.throws(() => {
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getPublicId('abc', () => false);
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});
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let notHexadecimal = 'abcdefghiklmnopqrstuvwxyz1234567';
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assert.equal(notHexadecimal.length, 32);
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assert.throws(() => {
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getPublicId(notHexadecimal, () => false);
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});
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});
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it('if no collisions, returns the first 5 base62 characters of value represented by the input', () => {
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assert.equal(
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getPublicId(id, () => false),
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fullPublicId.slice(0, 5),
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);
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});
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it('uses more characters if there is a collision', () => {
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assert.equal(
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getPublicId(id, publicId =>
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[fullPublicId.slice(0, 5), fullPublicId.slice(0, 6)].includes(publicId),
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),
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fullPublicId.slice(0, 7),
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);
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});
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it('fails if all characters collide', () => {
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assert.throws(() => {
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getPublicId(id, () => true);
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});
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});
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});
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