diff --git a/tools/clientcmd/client_config_test.go b/tools/clientcmd/client_config_test.go
index 954accde..aae65f85 100644
--- a/tools/clientcmd/client_config_test.go
+++ b/tools/clientcmd/client_config_test.go
@@ -296,7 +296,7 @@ func TestCertificateData(t *testing.T) {
 
 func TestBasicAuthData(t *testing.T) {
 	username := "myuser"
-	password := "mypass"
+	password := "mypass" // Fake value for testing.
 
 	config := clientcmdapi.NewConfig()
 	config.Clusters["clean"] = &clientcmdapi.Cluster{
diff --git a/util/cert/testdata/README.md b/util/cert/testdata/README.md
new file mode 100644
index 00000000..a78ddfbd
--- /dev/null
+++ b/util/cert/testdata/README.md
@@ -0,0 +1 @@
+Keys in this directory are generated for testing purposes only.