func ti(t *testing.T, pg prime.Generator, min, max uint64, known []uint64) {
var i int
pg.Iterate(min, max, func(prime uint64) (terminate bool) {
if i == len(known) {
t.Errorf("%s.Iterate(%d, %d) returning too many primes.",
reflect.TypeOf(pg), min, max)
return true
}
if prime != known[i] {
t.Errorf("%s.Iterate(%d, %d) = %d for %dth prime. %d expected.",
reflect.TypeOf(pg), min, max, prime, i+1, known[i])
return true
}
i++
return
})
if i != len(known) {
t.Errorf("%s.Iterate(%d, %d) didn't find all primes.",
reflect.TypeOf(pg), min, max)
}
}
