51 lines
2.2 KiB
TypeScript
51 lines
2.2 KiB
TypeScript
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import {matchAll, randomString, randomStringBuilder} from "../src";
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describe('String Utilities', () => {
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describe('randomString', () => {
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test('length', () => expect(randomString(32).length).toStrictEqual(32));
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test('distribution', () => {
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const charList = '123';
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const random = randomString(32, charList);
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expect(random.split('').filter(c => c == '1').length).toBeGreaterThan(0);
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expect(random.split('').filter(c => c == '2').length).toBeGreaterThan(0);
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expect(random.split('').filter(c => c == '3').length).toBeGreaterThan(0);
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});
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test('binary', () => {
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const randomByte = randomString(8, '01');
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expect(randomByte.split('').filter(c => c == '0').length).toBeGreaterThan(0);
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expect(randomByte.split('').filter(c => c == '1').length).toBeGreaterThan(0);
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expect(randomByte.length).toStrictEqual(8);
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});
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});
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describe('randomStringBuilder', () => {
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test('length', () => {
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const len = ~~(Math.random() * 32);
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expect(randomStringBuilder(len, true).length).toStrictEqual(len);
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});
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test('no length', () => {
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expect(randomStringBuilder(0, true)).toStrictEqual('');
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});
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test('letters only', () =>
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expect(/^[a-zA-Z]{10}$/g.test(randomStringBuilder(10, true))).toBeTruthy());
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test('numbers only', () =>
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expect(/^[0-9]{10}$/g.test(<any>randomStringBuilder(10, false, true))).toBeTruthy());
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test('symbols only', () =>
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expect(/^[^a-zA-Z0-9]{10}$/g.test(randomStringBuilder(10, false, false, true))).toBeTruthy());
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test('everything', () => {
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const randomString = randomStringBuilder(30, true, true, true);
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expect(/[a-zA-Z]/g.test(randomString)).toBeTruthy();
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expect(/[0-9]/g.test(randomString)).toBeTruthy();
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expect(/[^a-zA-Z0-9]/g.test(randomString)).toBeTruthy();
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});
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test('no pool', () =>
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expect(() => randomStringBuilder(10, false, false, false)).toThrow());
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});
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describe('matchAll', () => {
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test('using string', () => expect(matchAll('fooBar fooBar FooBar', 'fooBar').length).toBe(2));
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test('using regex', () => expect(matchAll('fooBar fooBar FooBar', /fooBar/g).length).toBe(2));
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test('using malformed regex', () => expect(() => matchAll('fooBar fooBar FooBar', /fooBar/)).toThrow());
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});
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});
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