diff -r 4a1398eff4fb -r 234fea368401 rt/vm/src/test/java/org/apidesign/vm4brwsr/TestVM.java
--- a/rt/vm/src/test/java/org/apidesign/vm4brwsr/TestVM.java	Sat Apr 26 21:30:06 2014 +0200
+++ b/rt/vm/src/test/java/org/apidesign/vm4brwsr/TestVM.java	Sun Apr 27 22:40:17 2014 +0200
@@ -152,6 +152,34 @@
             return null;
         }
     }
+    
+    static TestVM compileClassAndResources(StringBuilder sb, ScriptEngine[] eng, String name, String... resources) throws ScriptException, IOException {
+        if (sb == null) {
+            sb = new StringBuilder();
+        }
+        Bck2Brwsr b2b = Bck2Brwsr.newCompiler().
+            resources(new EmulationResources()).
+            addRootClasses(name).
+            addResources(resources).
+            library(false);
+        b2b.generate(sb);
+        ScriptEngineManager sem = new ScriptEngineManager();
+        ScriptEngine js = sem.getEngineByExtension("js");
+        if (eng != null) {
+            eng[0] = js;
+        }
+        try {
+            Object res = js.eval(sb.toString());
+            assertTrue(js instanceof Invocable, "It is invocable object: " + res);
+            return new TestVM((Invocable) js, sb);
+        } catch (Exception ex) {
+            if (sb.length() > 2000) {
+                sb = dumpJS(sb);
+            }
+            fail("Could not evaluate:" + ex.getClass() + ":" + ex.getMessage() + "\n" + sb, ex);
+            return null;
+        }
+    }
 
     Object loadClass(String loadClass, String name) throws ScriptException, NoSuchMethodException {
         return code.invokeMethod(bck2brwsr, "loadClass", Exceptions.class.getName());