expect(worker.taskFunctions.get('default')).toBeInstanceOf(Function)
expect(worker.taskFunctions.get('fn1')).toBeInstanceOf(Function)
expect(worker.taskFunctions.get('fn2')).toBeInstanceOf(Function)
expect(worker.taskFunctions.get('default')).toBeInstanceOf(Function)
expect(worker.taskFunctions.get('fn1')).toBeInstanceOf(Function)
expect(worker.taskFunctions.get('fn2')).toBeInstanceOf(Function)