source: utilitiespy/test/tools/IteratorTest.py@ 1351

import unittest
from tudelft.utilities.listener.DefaultListenable import DefaultListenable
from tudelft.utilities.tools.Iterator import hasNext, remove, removeAll

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))


        def test_remove(self):
                l=[1,2,3,2,1]
                self.assertTrue(remove(l, 1))
                self.assertEqual([2,3,2], l)
                self.assertFalse(remove(l, 1))
                
                l=[1,2,3,2,1]
                self.assertTrue(remove(l, 2))
                self.assertEqual([1,3,1], l)
                self.assertFalse(remove(l, 2))
                
        def test_removeAll(self):
                l=[1,2,3,2,1,3,2,1,1,2,3]
                self.assertTrue(removeAll(l, [1,2]))
                self.assertEqual([3,3,3], l)
                self.assertFalse(removeAll(l, [1,2]))
                self.assertEqual([3,3,3], l)