Tests for calling the constructors of ES6 classesOn success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".PASS new A did not throw exception.
PASS (class { constructor() {} })() threw exception TypeError: Class constructor cannot be invoked without 'new'.PASS new (class extends null { constructor() { super() } })() threw exception TypeError: super is not a constructor.PASS (class extends null { constructor() { super() } })() threw exception TypeError: Class constructor cannot be invoked without 'new'.