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package rand_test
import (
"bytes"
mathrand "math/rand"
"testing"
"time"
"github.com/aws/smithy-go/rand"
)
func TestUUID(t *testing.T) {
randSrc := make([]byte, 32)
for i := 16; i < len(randSrc); i++ {
randSrc[i] = 1
}
uuid := rand.NewUUID(bytes.NewReader(randSrc))
v, err := uuid.GetUUID()
if err != nil {
t.Fatalf("expect no error getting zero UUID, got %v", err)
}
if e, a := `00000000-0000-4000-8000-000000000000`, v; e != a {
t.Errorf("expect %v, got %v", e, a)
}
v, err = uuid.GetUUID()
if err != nil {
t.Fatalf("expect no error getting ones UUID, got %v", err)
}
if e, a := `01010101-0101-4101-8101-010101010101`, v; e != a {
t.Errorf("expect %v, got %v", e, a)
}
}
func BenchmarkUUID_GetUUID(b *testing.B) {
src := mathrand.NewSource(time.Now().Unix())
uuid := rand.NewUUID(mathrand.New(src))
for i := 0; i < b.N; i++ {
_, err := uuid.GetUUID()
if err != nil {
b.Fatal(err)
}
}
}
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