gistfile1.java

package org.shivas.server;

import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;

import junit.framework.TestCase;

public class ScriptingTest extends TestCase {
	
	private ScriptEngineManager mgr;

	protected void setUp() throws Exception {
		super.setUp();
		
		this.mgr = new ScriptEngineManager();
	}

	protected void tearDown() throws Exception {
		super.tearDown();
	}
	
	public void testEngineExists() {
		int count = 0;
		for (ScriptEngineFactory sef : mgr.getEngineFactories()) {
			if (sef.getLanguageName().equalsIgnoreCase("ruby") ||
			    sef.getLanguageName().equalsIgnoreCase("python") ||
			    sef.getLanguageName().equalsIgnoreCase("groovy"))
			{
				++count;
			}
		}
		
		assertEquals(3, count);
	}
	
	private void testLanguage(String name, String script) {
		ScriptEngine engine = mgr.getEngineByName(name);
		try {
			engine.eval(script);
			Greetable greetable = (Greetable) engine.get("x");
			greetable.greet("Blackrush (" + name + ")");
		} catch (ScriptException e) {
			assertTrue(false);
			e.printStackTrace();
		}
	}
	
	public void testRuby() {
		String script =
		"import \"org.shivas.server.Greetable\"\n" +
		"class MyGreeter\n" +
		"	include Greetable\n" +
		"" +
		"	def greet(name)\n" +
		"		puts 'hello ' + name\n" +
		"	end\n" +
		"end\n" +
		"x = MyGreeter.new\n" +
		"x.greet 'from ruby'";
		testLanguage("ruby", script);
	}
	
	public void testPython() {
		String script =
		"import org.shivas.server.Greetable\n" +
		"class MyGreeter(org.shivas.server.Greetable):\n" +
		"	def greet(self, name):\n" +
		"		print 'hello ' + name\n" +
		"\n" +
		"x = MyGreeter()\n" +
		"x.greet('from python')";
		testLanguage("python", script);
	}
	
	public void testGroovy() {
		String script =
		"import org.shivas.server.Greetable\n" +
		"class MyGreeter implements Greetable {\n" +
		"	void greet(String name) {\n" +
		"		System.out.println 'hello ' + name\n" +
		"	}\n" +
		"}\n" +
		"x = new MyGreeter()\n" +
		"x.greet 'from groovy'";
		testLanguage("groovy", script);
	}

}