This test checks behavior with expressions that create deep parse trees. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS eval(repeatedExpression("letterA", "+", 100)) is repeatedString("a", 100) PASS eval(repeatedExpression("letterA", "+", 1000)) is repeatedString("a", 1000) PASS eval(repeatedExpression("letterA", "+", 10000)) is repeatedString("a", 10000) PASS eval(repeatedExpression("letterA", "+", 100000)) threw exception Error: Out of memory. PASS successfullyParsed is true TEST COMPLETE