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- import { primes } from './sieve'
- describe('Sieve', () => {
- it('no primes under two', () => {
- const expected: number[] = []
- expect(primes(1)).toEqual(expected)
- })
- xit('find first prime', () => {
- const expected = [2]
- expect(primes(2)).toEqual(expected)
- })
- xit('find primes up to 10', () => {
- const expected = [2, 3, 5, 7]
- expect(primes(10)).toEqual(expected)
- })
- xit('limit is prime', () => {
- const expected = [2, 3, 5, 7, 11, 13]
- expect(primes(13)).toEqual(expected)
- })
- xit('find primes up to 1000', () => {
- const expected: number[] = [
- 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67,
- 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149,
- 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229,
- 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313,
- 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409,
- 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499,
- 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601,
- 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691,
- 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809,
- 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907,
- 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997,
- ]
- expect(primes(1000)).toEqual(expected)
- })
- })
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