@Test
public void evaluateDiscretize(){

	FieldName name = FieldName.create("x");
	Discretize discretize = new Discretize(name);
	assertEquals(null, evaluate(discretize, name, null));
	discretize.setMapMissingTo("Missing");
	assertEquals("Missing", evaluate(discretize, name, null));
	assertEquals(null, evaluate(discretize, name, 3));
	discretize.setDefaultValue("Default");
	assertEquals("Default", evaluate(discretize, name, 3));
}