spec: Tests for remote ES6 class

spec/fixtures/module/class.js

@@ -0,0 +1,29 @@
+'use strict';
+
+let value = 'old';
+
+class BaseClass {
+  method() {
+    return 'method';
+  }
+
+  get readonly() {
+    return 'readonly';
+  }
+
+  get value() {
+    return value;
+  }
+
+  set value(val) {
+    value = val;
+  }
+}
+
+class DerivedClass extends BaseClass {
+}
+
+module.exports = {
+  base: new BaseClass,
+  derived: new DerivedClass,
+}