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// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package stubkeymanager_test
import (
"bytes"
"errors"
"testing"
"github.com/google/go-cmp/cmp"
"google.golang.org/protobuf/testing/protocmp"
"github.com/tink-crypto/tink-go/v2/internal/testing/stubkeymanager"
agpb "github.com/tink-crypto/tink-go/v2/proto/aes_gcm_go_proto"
tpb "github.com/tink-crypto/tink-go/v2/proto/tink_go_proto"
)
type fakePrimitive struct {
Name string
}
func TestStubKeyManager(t *testing.T) {
keyType := "some.key.type"
km := stubkeymanager.StubKeyManager{
URL: keyType,
Key: &agpb.AesGcmKey{Version: 1, KeyValue: []byte("key_value")},
Prim: &fakePrimitive{Name: "fake-primitive-name"},
KeyData: &tpb.KeyData{
TypeUrl: keyType,
Value: []byte("key_value"),
KeyMaterialType: tpb.KeyData_SYMMETRIC,
},
}
if !km.DoesSupport(keyType) {
t.Errorf("DoesSupport(%q) = false , want true", keyType)
}
if km.DoesSupport("some.other.key.type") {
t.Errorf("DoesSupport(%q) = true , want false", keyType)
}
if km.TypeURL() != km.URL {
t.Errorf("TypeURL() = %q, want %q", km.TypeURL(), keyType)
}
key, err := km.NewKey(nil)
if err != nil {
t.Errorf("NewKey() err = %v, want nil", err)
}
if !cmp.Equal(key, km.Key, protocmp.Transform()) {
t.Errorf("NewKey() = %v, want %v", key, km.Key)
}
keyData, err := km.NewKeyData(nil)
if err != nil {
t.Errorf("NewKeyData() err = %v, want nil", err)
}
if !cmp.Equal(keyData, km.KeyData, protocmp.Transform()) {
t.Errorf("NewKeyData() = %v, want %v", keyData, km.KeyData)
}
p, err := km.Primitive(nil)
if err != nil {
t.Errorf("Primitive() err = %v, want nil", err)
}
if !cmp.Equal(p, km.Prim) {
t.Errorf("Primitive() = %v, want %v", p, km.Prim)
}
}
func TestStubPrivateKeyManager(t *testing.T) {
km := stubkeymanager.StubPrivateKeyManager{
PubKeyData: &tpb.KeyData{
TypeUrl: "some.key.type",
Value: []byte("key_value"),
KeyMaterialType: tpb.KeyData_ASYMMETRIC_PUBLIC,
},
}
pubKeyData, err := km.PublicKeyData(nil)
if err != nil {
t.Errorf("PublicKeyData() err = %v, want nil", err)
}
if !cmp.Equal(pubKeyData, km.PubKeyData, protocmp.Transform()) {
t.Errorf("PublicKeyData() = %v, want %v", pubKeyData, km.PubKeyData)
}
}
func TestStubDerivableKeyManager(t *testing.T) {
km := stubkeymanager.StubDerivableKeyManager{
KeyMatType: tpb.KeyData_SYMMETRIC,
DerKey: &agpb.AesGcmKey{Version: 0, KeyValue: []byte("derived_key_value")},
DerErr: errors.New("hiya"),
}
if km.KeyMaterialType() != km.KeyMatType {
t.Errorf("KeyMaterialType() = %d, want %d", km.KeyMaterialType(), tpb.KeyData_SYMMETRIC)
}
derivedKey, err := km.DeriveKey([]byte{}, &bytes.Buffer{})
if !cmp.Equal(derivedKey, km.DerKey, protocmp.Transform()) {
t.Errorf("DeriveKey() = %v, want %v", derivedKey, km.DerKey)
}
if err != km.DerErr {
t.Errorf("DeriveKey() err = %v, want %v", err, km.DerErr)
}
}
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