diff -r d8807b6a636a -r b9318fe303cd vm/src/test/java/org/apidesign/vm4brwsr/ArrayTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/ArrayTest.java	Mon Sep 24 11:07:38 2012 +0200
@@ -0,0 +1,63 @@
+/*
+Java 4 Browser Bytecode Translator
+Copyright (C) 2012-2012 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.vm4brwsr;
+
+import javax.script.Invocable;
+import javax.script.ScriptException;
+import org.testng.annotations.Test;
+import static org.testng.Assert.*;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+public class ArrayTest {
+    @Test public void verifySimpleIntOperation() throws Exception {
+        assertExec("CheckTheSum", "org_apidesign_vm4brwsr_Array_simpleI", 
+            Double.valueOf(15)
+        );
+    }
+    @Test public void verifyOperationsOnArrays() throws Exception {
+        assertExec("The sum is 105", "org_apidesign_vm4brwsr_Array_sumD", 
+            Double.valueOf(105)
+        );
+    }
+    
+    private static void assertExec(String msg, String methodName, Object expRes, Object... args) throws Exception {
+        StringBuilder sb = new StringBuilder();
+        Invocable i = StaticMethodTest.compileClass(sb, 
+            "org/apidesign/vm4brwsr/Array"
+        );
+        
+        Object ret = null;
+        try {
+            ret = i.invokeFunction(methodName, args);
+        } catch (ScriptException ex) {
+            fail("Execution failed in " + sb, ex);
+        } catch (NoSuchMethodException ex) {
+            fail("Cannot find method in " + sb, ex);
+        }
+        if (ret == null && expRes == null) {
+            return;
+        }
+        if (expRes.equals(ret)) {
+            return;
+        }
+        assertEquals(ret, expRes, msg + "was: " + ret + "\n" + sb);
+    }
+}