8080275: transparently download testng.jar for Nashorn testing

Instead of asking the user to manually download and install testng.jar, automate the process via "ant externals".

Reviewed-by: hannesw, sundar

nashorn/README

@@ -72,14 +72,11 @@ after which you can view the generated documentation at dist/javadoc/index.html.
 - Running tests
 
 Nashorn tests are TestNG based. Running tests requires downloading the
-TestNG library and placing its jar file into the lib subdirectory:
+TestNG library and placing its jar file into the test/lib subdirectory. This is
+done automatically when executing the "ant externals" command to get external
+test suites (see below).
 
-    # download and install TestNG
-    wget http://testng.org/testng-x.y.z.zip
-    unzip testng-x.y.z.zip
-    cp testng-x.y.z/testng-x.y.z.jar test/lib/testng.jar
-    
-After that, you can run the tests using:
+Once TestNG is properly installed, you can run the tests using:
     cd make
     ant clean test
     

nashorn/make/build.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
- Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 
  This code is free software; you can redistribute it and/or modify it
@@ -396,7 +396,7 @@ grant codeBase "file:/${basedir}/test/script/markdown.js" {
   </target>
 
   <target name="check-testng" unless="testng.available">
-    <echo message="WARNING: TestNG not available, will not run tests. Please copy testng.jar under test/lib directory."/>
+    <echo message="WARNING: TestNG not available, will not run tests. Please copy testng.jar under ${test.lib} directory."/>
   </target>
 
   <!-- only to be invoked as dependency of "test" target -->
@@ -694,7 +694,7 @@ grant codeBase "file:/${basedir}/test/script/markdown.js" {
   </target>
 
   <!-- get all external test scripts -->
-  <target name="externals" depends="init, check-external-tests, get-test262, get-octane, get-sunspider">
+  <target name="externals" depends="init, check-external-tests, get-test262, get-octane, get-sunspider, get-testng">
     <!-- make external test dir -->
     <mkdir dir="${test.external.dir}"/>
 
@@ -735,6 +735,18 @@ grant codeBase "file:/${basedir}/test/script/markdown.js" {
      <fail message="Exiting.."/>
   </target>
 
+  <!-- download and install testng.jar -->
+  <target name="get-testng" unless="testng.available">
+    <get src="http://testng.org/testng-6.8.zip" dest="${test.lib}" skipexisting="true" ignoreerrors="true"/>
+    <unzip src="${test.lib}${file.separator}testng-6.8.zip" dest="${test.lib}">
+      <patternset>
+        <include name="testng-6.8/testng-6.8.jar"/>
+      </patternset>
+    </unzip>
+    <move file="${test.lib}${file.separator}testng-6.8${file.separator}testng-6.8.jar" tofile="${test.lib}${file.separator}testng.jar"/>
+    <delete dir="${test.lib}${file.separator}testng-6.8"/>
+  </target>
+
   <target name="alltests" depends="exit-if-no-testng, externals, update-externals, test, test262parallel, perf"/>
 
   <import file="build-benchmark.xml"/>

nashorn/make/project.properties

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -77,8 +77,11 @@ fxshell.jar = ${dist.dir}/nashornfx.jar
 # configuration for java flight recorder
 run.test.jvmargs.jfr=-XX:+UnlockCommercialFeatures -XX:+FlightRecorder -XX:FlightRecorderOptions=defaultrecording=true,disk=true,dumponexit=true,dumponexitpath=${build.dir},stackdepth=128
 
+# test library location
+test.lib=${basedir}${file.separator}test${file.separator}lib
+
 # jars refererred
-file.reference.testng.jar=test/lib/testng.jar
+file.reference.testng.jar=${test.lib}${file.separator}testng.jar
 
 # Set testng verbose level
 # From TestNG docs: "the verbosity level (0 to 10 where 10 is most detailed)
@@ -243,9 +246,9 @@ testjfx-test-sys-prop.test.js.framework=\
     -fx \
     ${test.script.dir}${file.separator}jfx.js
 
-file.reference.jemmyfx.jar=test${file.separator}lib${file.separator}JemmyFX.jar
-file.reference.jemmycore.jar=test${file.separator}lib${file.separator}JemmyCore.jar
-file.reference.jemmyawtinput.jar=test${file.separator}lib${file.separator}JemmyAWTInput.jar
+file.reference.jemmyfx.jar=${test.lib}${file.separator}JemmyFX.jar
+file.reference.jemmycore.jar=${test.lib}${file.separator}JemmyCore.jar
+file.reference.jemmyawtinput.jar=${test.lib}${file.separator}JemmyAWTInput.jar
 file.reference.jfxrt.jar=${java.home}${file.separator}lib${file.separator}ext${file.separator}jfxrt.jar
 testjfx.run.test.classpath=\
     ${file.reference.jemmyfx.jar}${path.separator}\