package groovy class ClosureSugarTest extends GroovyTestCase { def count; void testClosureSugar() { count = 11; sugar { count = 20; } assert count == 20; } void testMixedClosureSugar() { def count = 11; mixedSugar (5){a-> count = count + a; } assert count == 16; } def mixedSugar(incrBy, Closure closure) { closure.call( incrBy ); } def sugar(Closure closure) { closure.call(); } }