Merge pull request #425 from XmiliaH/fix-424

Add uptime

Author: XmiliaH

Diff for: lib/setup-node-sandbox.js

@@ -330,6 +330,8 @@ function process() {
 	return this;
 }
 
+const baseUptime = localProcess.uptime();
+
 // FIXME wrong class structure
 global.process = {
 	__proto__: process.prototype,
@@ -354,6 +356,9 @@ global.process = {
 	hrtime: function hrtime(time) {
 		return localProcess.hrtime(time);
 	},
+	uptime: function uptime() {
+		return localProcess.uptime() - baseUptime;
+	},
 	cwd: function cwd() {
 		return localProcess.cwd();
 	},