diff -r 59d5596a9c6c -r d382dacfd73f rt/vm/src/test/java/org/apidesign/vm4brwsr/VMLazyTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rt/vm/src/test/java/org/apidesign/vm4brwsr/VMLazyTest.java	Tue Feb 26 16:54:16 2013 +0100
@@ -0,0 +1,93 @@
+/**
+ * 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.vm4brwsr;
+
+import javax.script.ScriptContext;
+import javax.script.ScriptEngine;
+import javax.script.ScriptException;
+import org.testng.annotations.BeforeClass;
+import static org.testng.Assert.*;
+import org.testng.annotations.Test;
+
+/** Implements loading class by class.
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+public class VMLazyTest {
+    private static TestVM code;
+
+    @BeforeClass
+    public void compileTheCode() throws Exception {
+        StringBuilder sb = new StringBuilder();
+        sb.append("\nvar data = {};");
+        sb.append("\nfunction test(clazz, method) {");
+        sb.append("\n  if (!data.bck2brwsr) data.bck2brwsr = bck2brwsr(function(name) { return loader.get(name); });");
+        sb.append("\n  var c = data.bck2brwsr.loadClass(clazz);");
+        sb.append("\n  return c[method]();");
+        sb.append("\n}");
+        
+        sb.append("\nfunction checkKO() {");
+        sb.append("\n  return ko !== null;");
+        sb.append("\n}");
+       
+        ScriptEngine[] arr = { null };
+        code = TestVM.compileClass(sb, arr,
+            new String[]{"org/apidesign/vm4brwsr/VM", "org/apidesign/vm4brwsr/StaticMethod"}
+        );
+        arr[0].getContext().setAttribute("loader", new BytesLoader(), ScriptContext.ENGINE_SCOPE);
+    }
+    
+    @Test public void invokeStaticMethod() throws Exception {
+        assertExec("Trying to get -1", "test", Double.valueOf(-1),
+            StaticMethod.class.getName(), "minusOne__I"
+        );
+    }
+
+    @Test public void loadDependantClass() throws Exception {
+        assertExec("Expecting zero", "test", Double.valueOf(0),
+            InstanceSub.class.getName(), "recallDbl__D"
+        );
+    }
+
+    @Test public void loadClassWithAssociatedScript() throws Exception {
+        assertExec("ko is defined", "test", true,
+            Script.class.getName(), "checkNotNull__Z"
+        );
+        
+        Object res = code.invokeFunction("checkKO");
+        assertEquals(res, true, "KO is defined on a global level");
+    }
+
+    private static void assertExec(String msg, String methodName, Object expRes, Object... args) throws Exception {
+        Object ret = null;
+        try {
+            ret = code.invokeFunction(methodName, args);
+        } catch (ScriptException ex) {
+            fail("Execution failed in\n" + code.toString(), ex);
+        } catch (NoSuchMethodException ex) {
+            fail("Cannot find method in\n" + code.toString(), ex);
+        }
+        if (ret == null && expRes == null) {
+            return;
+        }
+        if (expRes.equals(ret)) {
+            return;
+        }
+        assertEquals(ret, expRes, msg + "was: " + ret + "\n" + code.toString());
+    }
+}