gistfile1.txt

--- ./test/parallel/test-debug-signal-cluster.js.orig	Thu Oct 29 13:22:06 2015
+++ ./test/parallel/test-debug-signal-cluster.js	Thu Nov 12 04:08:31 2015
@@ -14,34 +14,48 @@
 var waitingForDebuggers = false;
 
 var pids = null;
+var n = 0;
 
-child.stderr.on('data', function(data) {
-  var lines = data.toString().replace(/\r/g, '').trim().split('\n');
+var expectedLines = [
+  'Starting debugger agent.',
+  'Debugger listening on port ' + (port + 0),
+  'Starting debugger agent.',
+  'Debugger listening on port ' + (port + 1),
+  'Starting debugger agent.',
+  'Debugger listening on port ' + (port + 2)
+];
 
-  lines.forEach(function(line) {
-    console.log('> ' + line);
+var rcvdTxt = '';
+var expectedTxt = '';
+for (var i = 0; i < expectedLines.length; i++)
+  expectedTxt += expectedLines[i];
 
-    if (line === 'all workers are running') {
-      child.on('message', function(msg) {
-        if (msg.type !== 'pids')
-          return;
+child.stderr.on('data', function(data) {
+  var d = data.toString().trim();
+  console.log(n + '> ' + d);
+  n++;
 
-        pids = msg.pids;
-        console.error('got pids %j', pids);
+  if (waitingForDebuggers) {
+    // hopefully another write just intercepts the trailing '\n', only ..
+    rcvdTxt += d.replace(/[\r\n]/g, '');
+  } else if (d.indexOf('all workers are running') != -1) {
+    child.on('message', function(msg) {
+      if (msg.type !== 'pids')
+        return;
 
-        waitingForDebuggers = true;
-        process._debugProcess(child.pid);
-      });
+      pids = msg.pids;
+      console.error('got pids %j', pids);
 
-      child.send({
-        type: 'getpids'
-      });
-    } else if (waitingForDebuggers) {
-      outputLines.push(line);
-    }
+      waitingForDebuggers = true;
+      process._debugProcess(child.pid);
+    });
 
-  });
-  if (outputLines.length >= expectedLines.length)
+    child.send({
+      type: 'getpids'
+    });
+  }
+
+  if (rcvdTxt.length >= expectedTxt.length)
     onNoMoreLines();
 });
 
@@ -62,23 +76,13 @@
   });
 });
 
-var expectedLines = [
-  'Starting debugger agent.',
-  'Debugger listening on port ' + (port + 0),
-  'Starting debugger agent.',
-  'Debugger listening on port ' + (port + 1),
-  'Starting debugger agent.',
-  'Debugger listening on port ' + (port + 2),
-];
 
 function assertOutputLines() {
-  // Do not assume any particular order of output messages,
-  // since workers can take different amout of time to
-  // start up
-  outputLines.sort();
-  expectedLines.sort();
-
-  assert.equal(outputLines.length, expectedLines.length);
-  for (var i = 0; i < expectedLines.length; i++)
-    assert.equal(outputLines[i], expectedLines[i]);
+  assert(rcvdTxt.length >= expectedTxt.length);
+  for (var i = 0; i < expectedLines.length; i++) {
+    var k = rcvdTxt.indexOf(expectedLines[i]);
+    assert(k >= 0, 'Message "' + expectedLines[i] + '" (' + i + ') not found.');
+    rcvdTxt = rcvdTxt.substr(0,k) + rcvdTxt.substr(k + expectedLines[i].length);
+  }
+  //console.error("Remaining text: '" + rcvdTxt + "'");
 }