Add --vagrant switch to the javascript test-runner

Added -V|--vagrant switch to the javascript test-runner
to run the tests in the Vagrant VM

refs #4264

test/js/runtests

@@ -3,12 +3,14 @@
 import os
 import sys
 import subprocess
+from pipes import quote
 from optparse import OptionParser, BadOptionError, AmbiguousOptionError
 
 
 APPLICATION = 'mocha'
 DEFAULT_ARGS = ['--recursive', '--require', 'should']
 
+VAGRANT_SCRIPT = '/vagrant/test/js/runtests'
 REPORT_DIRECTORY = '../../build/log'
 
 
@@ -69,12 +71,27 @@ def parse_commandline():
     parser.add_option('-e', '--exclude', metavar='PATTERN', action='append',
                       help='Exclude specific files/test cases. '
                            '(Can be supplied multiple times.)')
+    parser.add_option('-V', '--vagrant', action='store_true',
+                      help='Run in vagrant VM')
     return parser.parse_args()
 
 
 def main():
     options, arguments = parse_commandline()
 
+    if options.vagrant and os.environ['USER'] != 'vagrant':
+        # Check if vagrant is installed
+        vagrant_path = execute_command('which vagrant', True, True).strip()
+        if not vagrant_path:
+            print 'ERROR: vagrant not found!'
+            return 2
+
+        # Call the script in the Vagrant VM with the same parameters
+        commandline = ' '.join(quote(p) for p in sys.argv[1:])
+        return execute_command('vagrant ssh -c "{0} {1}"'
+                               ''.format(VAGRANT_SCRIPT, commandline),
+                               shell=True)
+    else:
         # Environment preparation and verification
         os.chdir(get_script_directory())
         application_path = execute_command('which {0}'.format(APPLICATION),
@@ -114,7 +131,8 @@ def main():
             result_data = execute_command([application_path] + DEFAULT_ARGS +
                                           command_options + arguments, True)
             coverage_data = execute_command([application_path] + DEFAULT_ARGS +
-                                        more_command_options + arguments, True)
+                                            more_command_options + arguments,
+                                            return_output=True)
             # Result storage
             report_directory = get_report_directory()
             result_path = os.path.join(report_directory, 'mocha_results.xml')