ci: add unit tests for SecretsKMS

Signed-off-by: Niels de Vos <ndevos@redhat.com>

internal/util/crypto_test.go

@@ -0,0 +1,71 @@
+/*
+Copyright 2021 Ceph-CSI authors.
+
+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 util
+
+import (
+	"encoding/base64"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestInitSecretsKMS(t *testing.T) {
+	secrets := map[string]string{}
+
+	// no passphrase in the secrets, should fail
+	kms, err := initSecretsKMS(secrets)
+	assert.Error(t, err)
+	assert.Nil(t, kms)
+
+	// set a passphrase and it should pass
+	secrets[encryptionPassphraseKey] = "plaintext encryption key"
+	kms, err = initSecretsKMS(secrets)
+	assert.NotNil(t, kms)
+	assert.NoError(t, err)
+}
+
+func TestGenerateNewEncryptionPassphrase(t *testing.T) {
+	b64Passphrase, err := generateNewEncryptionPassphrase()
+	require.NoError(t, err)
+
+	// b64Passphrase is URL-encoded, decode to verify the length of the
+	// passphrase
+	passphrase, err := base64.URLEncoding.DecodeString(b64Passphrase)
+	assert.NoError(t, err)
+	assert.Equal(t, encryptionPassphraseSize, len(passphrase))
+}
+
+func TestKMSWorkflow(t *testing.T) {
+	secrets := map[string]string{
+		encryptionPassphraseKey: "workflow test",
+	}
+
+	kms, err := GetKMS("tenant", defaultKMSType, secrets)
+	assert.NoError(t, err)
+	require.NotNil(t, kms)
+	assert.Equal(t, defaultKMSType, kms.GetID())
+
+	volumeID := "volume-id"
+
+	err = StoreNewCryptoPassphrase(volumeID, kms)
+	assert.NoError(t, err)
+
+	passphrase, err := GetCryptoPassphrase(volumeID, kms)
+	assert.NoError(t, err)
+	assert.Equal(t, secrets[encryptionPassphraseKey], passphrase)
+}