test: test for the exitedAfterDisconnect default value

The test checka for the exit code of the worker. cluster on exit
must be called. And the value for exitedAfterDisconnect should be false

Fixes: nodejs#28837
Refs: nodejs#3743

test/parallel/test-cluster-disconnect-exitedAfterDisconnect-default.js

@@ -0,0 +1,19 @@
+'use strict';
+
+const common = require('../common');
+
+// Test should fail in Node.js 5.4.1 and pass in later versions.
+
+const assert = require('assert');
+const cluster = require('cluster');
+
+if (cluster.isMaster) {
+  cluster.on('exit', common.mustCall((worker, code) => {
+    assert.strictEqual(code, 0, `worker exited with code: ${code}, expected 0`);
+    assert.strictEqual(worker.exitedAfterDisconnect, false);
+  }));
+
+  return cluster.fork();
+}
+
+process.exit(0);