diff -r 000000000000 -r 8e42a376da73 rt/emul/brwsrtest/src/test/java/org/apidesign/bck2brwsr/brwsrtest/BooleanTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rt/emul/brwsrtest/src/test/java/org/apidesign/bck2brwsr/brwsrtest/BooleanTest.java	Thu May 16 08:49:55 2013 +0200
@@ -0,0 +1,49 @@
+/**
+ * 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.brwsrtest;
+
+import org.apidesign.bck2brwsr.core.JavaScriptBody;
+import org.apidesign.bck2brwsr.vmtest.BrwsrTest;
+import org.apidesign.bck2brwsr.vmtest.Compare;
+import org.apidesign.bck2brwsr.vmtest.VMTest;
+import org.testng.annotations.Factory;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+public class BooleanTest {
+    @JavaScriptBody(args = { "tr" }, body = "return tr ? true : false;")
+    private static native Object trueFalse(boolean tr);
+    
+    @BrwsrTest public void isTrueInstanceOfBoolean() {
+        Object t = trueFalse(true);
+        assert t instanceof Boolean : "Should be boolean: " + t;
+        assert ((boolean)t) : "and is true";
+    }
+    
+    @BrwsrTest public void isFalseInstanceOfBoolean() {
+        Object t = trueFalse(false);
+        assert t instanceof Boolean : "Should be boolean: " + t;
+        assert !((boolean)t) : "and is false: " + t;
+    }
+
+    @Factory public static Object[] create() {
+        return VMTest.create(BooleanTest.class);
+    }
+}