1 files changed, 71 insertions, 0 deletions
diff --git a/test/parallel/test-cluster-setup-master-multiple.js b/test/parallel/test-cluster-setup-master-multiple.js
new file mode 100644
index 0000000000..21756b9c0c
--- /dev/null
+++ b/test/parallel/test-cluster-setup-master-multiple.js
@@ -0,0 +1,71 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+var common = require('../common');
+var assert = require('assert');
+var cluster = require('cluster');
+
+assert(cluster.isMaster);
+
+// The cluster.settings object is cloned even though the current implementation
+// makes that unecessary. This is to make the test less fragile if the
+// implementation ever changes such that cluster.settings is mutated instead of
+// replaced.
+function cheapClone(obj) {
+  return JSON.parse(JSON.stringify(obj));
+}
+
+var configs = [];
+
+// Capture changes
+cluster.on('setup', function() {
+  console.log('"setup" emitted', cluster.settings);
+  configs.push(cheapClone(cluster.settings));
+});
+
+var execs = [
+  'node-next',
+  'node-next-2',
+  'node-next-3',
+];
+
+process.on('exit', function assertTests() {
+  // Tests that "setup" is emitted for every call to setupMaster
+  assert.strictEqual(configs.length, execs.length);
+
+  assert.strictEqual(configs[0].exec, execs[0]);
+  assert.strictEqual(configs[1].exec, execs[1]);
+  assert.strictEqual(configs[2].exec, execs[2]);
+});
+
+// Make changes to cluster settings
+execs.forEach(function(v, i) {
+  setTimeout(function() {
+    cluster.setupMaster({ exec: v });
+  }, i * 100);
+});
+
+// cluster emits 'setup' asynchronously, so we must stay alive long
+// enough for that to happen
+setTimeout(function() {
+  console.log('cluster setup complete');
+}, (execs.length + 1) * 100);