fix(launcher): report summary when specs fail

lib/launcher.js

@@ -9,6 +9,7 @@ var child = require('child_process'),
     TaskScheduler = require('./taskScheduler');
 
 var launcherPrefix = '[launcher] ';
+var RUNNERS_FAILED_EXIT_CODE = 100;
 
 var log_ = function(stuff) {
   console.log(launcherPrefix + stuff);
@@ -22,7 +23,7 @@ var log_ = function(stuff) {
  */
 var init = function(configFile, additionalConfig) {
 
-  var launcherExitCode = 0;
+  var runnerErrorCount = 0; 
 
   var configParser = new ConfigParser();
   if (configFile) {
@@ -95,14 +96,14 @@ var init = function(configFile, additionalConfig) {
     this.process.on('error', function(err) {
       self.reporter.flush();
       log_('Runner Process(' + self.process.pid + ') Error: ' + err);
-      launcherExitCode = 1; 
+      runnerErrorCount += 1; 
     });
 
     this.process.on('exit', function(code) {
       self.reporter.flush();
       if (code) {
         log_('Runner Process Exited With Error Code: ' + code);
-        launcherExitCode = 1;
+        runnerErrorCount += 1;
       }
       log_(scheduler.countActiveTasks() + 
         ' instance(s) of WebDriver still running');
@@ -161,17 +162,20 @@ var init = function(configFile, additionalConfig) {
     log_('Running ' + scheduler.countActiveTasks() + ' instances of WebDriver');
 
     process.on('exit', function(code) {
-      launcherExitCode = code ? code : launcherExitCode;
-      if (launcherExitCode) {
-        log_('Process exited with error code ' + launcherExitCode);
+      if (code) {
+        log_('Process exited with error code ' + code);
+        process.exit(code);
+      } else if (runnerErrorCount > 0) {
+        reporter.reportSummary();
+        process.exit(RUNNERS_FAILED_EXIT_CODE);
       } else {
         if (scheduler.numTasksRemaining() > 0) {
           throw new Error('BUG: launcher exited with ' + 
-            scheduler.numTasksRemaining() + ' tasks remaining');
+              scheduler.numTasksRemaining() + ' tasks remaining');
         }
         reporter.reportSummary();
+        process.exit(0);
       }
-      process.exit(launcherExitCode);
     });
   }
 };