groovy/modules/classic/src/test/groovy/ClosureInClosureTest.groovy

/**
 * Bug illustrating the nested closures variable scope visibility issue.
 * l.each is ClosureInClosureBug$1 and it.each is ClosureInClosureBug$2
 * The variable text is not visible from ClosureInClosureBug$2.
 * Indeed, a closure can only see the variable defined outside this closure (one level up)
 * but cannot see what's in the second level.
 *
 * In order to make the test work, do not forget to uncomment the line "println(text)"
 *
 * @authour Guillaume Laforge
 */
class ClosureInClosureTest extends GroovyTestCase
{
	void testInvisibleVariable()
	{
		text = "test "

		l = [1..11, 2..12, 3..13, 4..14]

		l.each{
			it.each{
			    println(text)
			}
		}
	}

	static void main(args)
	{
		bug = new ClosureInClosureTest()
		bug.testInvisibleVariable()
	}
}