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dex/server/rotation_test.go

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2016-07-25 20:00:28 +00:00
package server
import (
"os"
"sort"
"testing"
"time"
"github.com/Sirupsen/logrus"
"github.com/coreos/dex/storage"
"github.com/coreos/dex/storage/memory"
)
func signingKeyID(t *testing.T, s storage.Storage) string {
keys, err := s.GetKeys()
if err != nil {
t.Fatal(err)
}
return keys.SigningKey.KeyID
}
func verificationKeyIDs(t *testing.T, s storage.Storage) (ids []string) {
keys, err := s.GetKeys()
if err != nil {
t.Fatal(err)
}
for _, key := range keys.VerificationKeys {
ids = append(ids, key.PublicKey.KeyID)
}
return ids
}
// slicesEq compare two string slices without modifying the ordering
// of the slices.
func slicesEq(s1, s2 []string) bool {
if len(s1) != len(s2) {
return false
}
cp := func(s []string) []string {
c := make([]string, len(s))
copy(c, s)
return c
}
cp1 := cp(s1)
cp2 := cp(s2)
sort.Strings(cp1)
sort.Strings(cp2)
for i, el := range cp1 {
if el != cp2[i] {
return false
}
}
return true
}
func TestKeyRotater(t *testing.T) {
now := time.Now()
delta := time.Millisecond
rotationFrequency := time.Second * 5
validFor := time.Second * 21
// Only the last 5 verification keys are expected to be kept around.
maxVerificationKeys := 5
l := &logrus.Logger{
Out: os.Stderr,
Formatter: &logrus.TextFormatter{DisableColors: true},
Level: logrus.DebugLevel,
}
r := &keyRotater{
Storage: memory.New(l),
strategy: defaultRotationStrategy(rotationFrequency, validFor),
now: func() time.Time { return now },
logger: l,
}
var expVerificationKeys []string
for i := 0; i < 10; i++ {
now = now.Add(rotationFrequency + delta)
if err := r.rotate(); err != nil {
t.Fatal(err)
}
got := verificationKeyIDs(t, r.Storage)
if !slicesEq(expVerificationKeys, got) {
t.Errorf("after %d rotation, expected verification keys %q, got %q", i+1, expVerificationKeys, got)
}
expVerificationKeys = append(expVerificationKeys, signingKeyID(t, r.Storage))
if n := len(expVerificationKeys); n > maxVerificationKeys {
expVerificationKeys = expVerificationKeys[n-maxVerificationKeys:]
}
}
}