Bug 1527316 - Setup MOZ_NODE_PATH as part of bootstrapping r=gbrown

Differential Revision: https://phabricator.services.mozilla.com/D24301

--HG--
extra : moz-landing-system : lando

testing/xpcshell/runxpcshelltests.py

@@ -1098,6 +1098,8 @@ class XPCShellTests(object):
         # We try to find the node executable in the path given to us by the user in
         # the MOZ_NODE_PATH environment variable
         nodeBin = os.getenv('MOZ_NODE_PATH', None)
+        if not nodeBin and build:
+            nodeBin = build.substs.get('NODEJS')
         if not nodeBin:
             self.log.warning('MOZ_NODE_PATH environment variable not set. '
                              'Tests requiring http/2 will fail.')

testing/xpcshell/selftest.py

@@ -471,6 +471,7 @@ class XPCShellTestsTests(unittest.TestCase):
 
     def tearDown(self):
         shutil.rmtree(self.tempdir)
+        self.x.shutdownNode()
 
     def writeFile(self, name, contents):
         """