diff -r c150d042ffff -r e6b607104dc6 nashorn/make/build.xml
--- a/nashorn/make/build.xml	Mon Dec 02 18:19:26 2013 +0530
+++ b/nashorn/make/build.xml	Thu Dec 12 19:02:43 2013 +0530
@@ -304,6 +304,10 @@
     permission java.lang.RuntimePermission "nashorn.JavaReflection";
 };
 
+grant codeBase "file:/${basedir}/test/script/markdown.js" {
+    permission java.io.FilePermission "${basedir}/test/script/external/showdown/-", "read";
+};
+
     </echo>
 
     <replace file="${build.dir}/nashorn.policy"><replacetoken>\</replacetoken><replacevalue>/</replacevalue></replace>    <!--hack for Windows - to make URLs with normal path separators -->
@@ -319,6 +323,7 @@
       <available file="${test.external.dir}/yui" property="test-sys-prop.external.yui"/>
       <available file="${test.external.dir}/jquery" property="test-sys-prop.external.jquery"/>
       <available file="${test.external.dir}/test262" property="test-sys-prop.external.test262"/>
+      <available file="${test.external.dir}/showdown" property="test-sys-prop.external.markdown"/>
   </target>
 
   <target name="check-testng" unless="testng.available">
@@ -399,6 +404,25 @@
     </testng>
   </target>
   
+  <target name="testmarkdown" depends="jar, check-testng, check-external-tests, compile-test, generate-policy-file" if="testng.available">
+    <fileset id="test.classes" dir="${build.test.classes.dir}">
+       <include name="**/framework/*Test.class"/>
+    </fileset>
+
+    <testng outputdir="${build.test.results.dir}" classfilesetref="test.classes"
+       verbose="${testng.verbose}" haltonfailure="true" useDefaultListeners="false" listeners="${testng.listeners}" workingDir="${basedir}">
+      <jvmarg line="${ext.class.path}"/>
+      <jvmarg line="${run.test.jvmargs} -Xmx${run.test.xmx} ${run.test.jvmsecurityargs}"/>
+      <propertyset>
+        <propertyref prefix="testmarkdown-test-sys-prop."/>
+        <mapper from="testmarkdown-test-sys-prop.*" to="*" type="glob"/>
+      </propertyset>
+      <classpath>
+          <pathelement path="${run.test.classpath}"/>
+      </classpath>
+    </testng>
+  </target>
+  
   <target name="test262" depends="jar, check-testng, check-external-tests, compile-test, generate-policy-file" if="testng.available">
     <fileset id="test.classes" dir="${build.test.classes.dir}">
        <include name="**/framework/*Test.class"/>
@@ -546,6 +570,11 @@
     <mkdir dir="${test.external.dir}/yui"/>
     <get src="http://yui.yahooapis.com/3.5.1/build/yui/yui.js" dest="${test.external.dir}/yui" skipexisting="true" ignoreerrors="true"/>
     <get src="http://yui.yahooapis.com/3.5.1/build/yui/yui-min.js" dest="${test.external.dir}/yui" skipexisting="true" ignoreerrors="true"/>
+    
+    <!-- showdown -->
+    <mkdir dir="${test.external.dir}/showdown"/>
+    <get src="https://raw.github.com/coreyti/showdown/master/src/showdown.js" dest="${test.external.dir}/showdown" skipexisting="true" ignoreerrors="true"/>
+    <get src="https://raw.github.com/coreyti/showdown/master/src/extensions/table.js" dest="${test.external.dir}/showdown" skipexisting="true" ignoreerrors="true"/>
 
   </target>