testparser.java

public void testResult(String string, Double expected) {
	testResult(string, new Value(expected));
}

public void testResult(String string, Boolean expected) {
	testResult(string, new Value(expected), Type.BOOLEAN);
}

private final static String CLASS_NAME = "MyGeneratedClass";
private static Integer classCounter = new Integer(1);

public void testResult(String string, Value expected) {
	testResult(string, expected, Type.DOUBLE);
}

public void testResult(String string, Value expected, Type type) {
	
	String className = CLASS_NAME+(classCounter++);
	ParserBroken parser = new ParserBroken();
	// generate code
	parser.parse(className, type, string);
	
	// load code
	ClassLoader classLoader = this.getClass().getClassLoader();
	
	Class<?> loadedClass = null;
	try {
		loadedClass = classLoader.loadClass(className);
	} catch (ClassNotFoundException e) {
		System.err.println("could not load class: "+className);
		e.printStackTrace();
	}
	
	// instance class
	Object instance = null;
	Method method = null;
	try {
		instance = loadedClass.newInstance();
		method = loadedClass.getDeclaredMethod("doIt", new Class[]{});
	} catch (InstantiationException e) {
		e.printStackTrace();
	} catch (IllegalAccessException e) {
		e.printStackTrace();
	} catch (SecurityException e) {
		e.printStackTrace();
	} catch (NoSuchMethodException e) {
		e.printStackTrace();
	}
	
	// execute
	Value value = null;
	try {
		Object result = method.invoke(instance, new Object[]{});
		value = new Value(result);
	} catch (IllegalArgumentException e) {
		e.printStackTrace();
	} catch (IllegalAccessException e) {
		e.printStackTrace();
	} catch (InvocationTargetException e) {
		e.printStackTrace();
	}

	Assert.assertEquals(expected, value);
}