source: utilitiespy/test/tools/IteratorTest.py

import unittest
from tudelft.utilities.listener.DefaultListenable import DefaultListenable
from tudelft.utilities.tools.Iterator import hasNext

class IteratorTest(unittest.TestCase):
        
        def test_Iterator(self):
                it=iter([1,2,3])
                result=[]
                while (t:=hasNext(it)) and (it:=t[1]) and t[0]:
                        nxt=next(it)
                        print(nxt)
                        result.append(nxt)
                self.assertEqual(3, len(result))