package com.cutajarjames.exercise3
import org.scalatest.{FlatSpec, Matchers}
class LazyPrimesSpec extends FlatSpec with Matchers {
it should "output the correct sequence of the first 100 primes" in {
(new LazyPrimes).allPrimes.take(100) shouldEqual Seq(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)
}
it should "output the correct sequence of the 1000th prime" in {
(new LazyPrimes).allPrimes(1000) shouldEqual 7927
}
}
