92 lines
2.4 KiB
JavaScript
92 lines
2.4 KiB
JavaScript
const cryptoUtils = require('../lib/cryptoUtils');
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function givesUniqueResults(fn, iterations) {
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const results = {};
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for (let i = 0; i < iterations; i++) {
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const s = fn();
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if (results[s]) {
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return false;
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}
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results[s] = true;
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}
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return true;
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}
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describe('randomString', () => {
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it('returns a string', () => {
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expect(typeof cryptoUtils.randomString(10)).toBe('string');
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});
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it('returns result of the given length', () => {
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expect(cryptoUtils.randomString(11).length).toBe(11);
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expect(cryptoUtils.randomString(25).length).toBe(25);
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});
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it('throws if requested length is zero', () => {
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expect(() => cryptoUtils.randomString(0)).toThrow();
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});
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it('returns unique results', () => {
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expect(givesUniqueResults(() => cryptoUtils.randomString(10), 100)).toBe(
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true
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);
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});
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});
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describe('randomHexString', () => {
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it('returns a string', () => {
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expect(typeof cryptoUtils.randomHexString(10)).toBe('string');
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});
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it('returns result of the given length', () => {
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expect(cryptoUtils.randomHexString(10).length).toBe(10);
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expect(cryptoUtils.randomHexString(32).length).toBe(32);
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});
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it('throws if requested length is zero', () => {
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expect(() => cryptoUtils.randomHexString(0)).toThrow();
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});
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it('throws if requested length is not even', () => {
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expect(() => cryptoUtils.randomHexString(11)).toThrow();
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});
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it('returns unique results', () => {
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expect(givesUniqueResults(() => cryptoUtils.randomHexString(20), 100)).toBe(
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true
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);
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});
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});
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describe('newObjectId', () => {
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it('returns a string', () => {
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expect(typeof cryptoUtils.newObjectId()).toBe('string');
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});
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it('returns result with at least 10 characters', () => {
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expect(cryptoUtils.newObjectId().length).toBeGreaterThan(9);
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});
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it('returns result with required number of characters', () => {
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expect(cryptoUtils.newObjectId(42).length).toBe(42);
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});
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it('returns unique results', () => {
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expect(givesUniqueResults(() => cryptoUtils.newObjectId(), 100)).toBe(true);
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});
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});
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describe('newToken', () => {
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it('returns a string', () => {
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expect(typeof cryptoUtils.newToken()).toBe('string');
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});
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it('returns result with at least 32 characters', () => {
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expect(cryptoUtils.newToken().length).toBeGreaterThan(31);
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});
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it('returns unique results', () => {
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expect(givesUniqueResults(() => cryptoUtils.newToken(), 100)).toBe(true);
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});
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});
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