libgo/go/crypto/rand/util_test.go

   1 // Copyright 2013 The Go Authors.  All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package rand_test
   6
   7 import (
   8         "crypto/rand"
   9         "testing"
  10 )
  11
  12 // http://golang.org/issue/6849.
  13 func TestPrimeSmall(t *testing.T) {
  14         for n := 2; n < 10; n++ {
  15                 p, err := rand.Prime(rand.Reader, n)
  16                 if err != nil {
  17                         t.Fatalf("Can't generate %d-bit prime: %v", n, err)
  18                 }
  19                 if p.BitLen() != n {
  20                         t.Fatalf("%v is not %d-bit", p, n)
  21                 }
  22                 if !p.ProbablyPrime(32) {
  23                         t.Fatalf("%v is not prime", p)
  24                 }
  25         }
  26 }