diff -r f45b7126d21d -r 3a1f262311cf rt/emul/compacttest/src/test/java/org/apidesign/bck2brwsr/tck/SystemTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rt/emul/compacttest/src/test/java/org/apidesign/bck2brwsr/tck/SystemTest.java	Wed Nov 19 19:32:00 2014 +0100
@@ -0,0 +1,65 @@
+/**
+ * Back 2 Browser Bytecode Translator
+ * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.tck;
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import org.apidesign.bck2brwsr.core.ExtraJavaScript;
+import org.apidesign.bck2brwsr.core.JavaScriptBody;
+import org.apidesign.bck2brwsr.vmtest.Compare;
+import org.apidesign.bck2brwsr.vmtest.VMTest;
+import org.testng.annotations.Factory;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+@ExtraJavaScript(resource = "/org/apidesign/bck2brwsr/tck/console.js")
+public class SystemTest {
+    @Compare public boolean nonNullOSName() {
+        return System.getProperty("os.name") != null;
+    }
+
+    @Compare public String captureStdOut() throws Exception {
+        Object capture = initCapture();
+        System.out.println("Ahoj");
+        return textCapture(capture);
+    }
+    
+    @JavaScriptBody(args = {}, body = ""
+        + "var lines = [];"
+        + "console.log = function(l) { lines.push(l); };"
+        + "return lines;")
+    Object initCapture() {
+        ByteArrayOutputStream os = new ByteArrayOutputStream();
+        PrintStream ps = new PrintStream(os);
+        
+        System.setOut(ps);
+        return os;
+    }
+    
+    @JavaScriptBody(args = { "o" }, body = "return o.join('');")
+    String textCapture(Object o) throws java.io.IOException {
+        ByteArrayOutputStream b = (ByteArrayOutputStream) o;
+        return new String(b.toByteArray(), "UTF-8");
+    }
+    
+    @Factory public static Object[] create() {
+        return VMTest.create(SystemTest.class);
+    }
+}