constellation/kms/internal/server/server_test.go

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package server
import (
"context"
"errors"
"testing"
"github.com/edgelesssys/constellation/internal/logger"
"github.com/edgelesssys/constellation/kms/kmsproto"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.uber.org/goleak"
)
func TestMain(m *testing.M) {
goleak.VerifyTestMain(m)
}
func TestGetDataKey(t *testing.T) {
assert := assert.New(t)
require := require.New(t)
log := logger.NewTest(t)
kms := &stubKMS{derivedKey: []byte{0x0, 0x1, 0x2, 0x3, 0x4, 0x5}}
api := New(log, kms)
res, err := api.GetDataKey(context.Background(), &kmsproto.GetDataKeyRequest{DataKeyId: "1", Length: 32})
require.NoError(err)
assert.Equal(kms.derivedKey, res.DataKey)
// Test no data key id
res, err = api.GetDataKey(context.Background(), &kmsproto.GetDataKeyRequest{Length: 32})
require.Error(err)
assert.Nil(res)
// Test no / zero key length
res, err = api.GetDataKey(context.Background(), &kmsproto.GetDataKeyRequest{DataKeyId: "1"})
require.Error(err)
assert.Nil(res)
// Test derive key error
api = New(log, &stubKMS{deriveKeyErr: errors.New("error")})
res, err = api.GetDataKey(context.Background(), &kmsproto.GetDataKeyRequest{DataKeyId: "1", Length: 32})
assert.Error(err)
assert.Nil(res)
}
type stubKMS struct {
masterKey []byte
derivedKey []byte
deriveKeyErr error
}
func (c *stubKMS) CreateKEK(ctx context.Context, keyID string, kek []byte) error {
c.masterKey = kek
return nil
}
func (c *stubKMS) GetDEK(ctx context.Context, kekID string, dekID string, dekSize int) ([]byte, error) {
if c.deriveKeyErr != nil {
return nil, c.deriveKeyErr
}
return c.derivedKey, nil
}