Fix sample tests (#141)

.gitignore

@@ -5,9 +5,7 @@
 coverage/
 docs/
 out/
-test.js
 config.yaml
-ignored
 build
 .vscode
 package-lock.json

samples/system-test/test.js

@@ -0,0 +1,15 @@
+// Copyright 2018 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.
+
+console.warn(`no sample tests available 👻`);