Python advance_iterator Examples

Example #1

File: test_six.py Project: theguardian/CherryStrap

def test_iterator():
    class myiter(six.Iterator):
        def __next__(self):
            return 13
    assert six.advance_iterator(myiter()) == 13
    class myitersub(myiter):
        def __next__(self):
            return 14
    assert six.advance_iterator(myitersub()) == 14

Example #2

def test_iterator():
    class myiter(six.Iterator):
        def __next__(self):
            return 13

    assert six.advance_iterator(myiter()) == 13

    class myitersub(myiter):
        def __next__(self):
            return 14

    assert six.advance_iterator(myitersub()) == 14

Example #3

def test_zip_longest():
    from six.moves import zip_longest
    it = zip_longest(range(2), range(1))

    assert six.advance_iterator(it) == (0, 0)
    assert six.advance_iterator(it) == (1, None)

Example #4

def test_zip():
    from six.moves import zip
    assert six.advance_iterator(zip(range(2), range(2))) == (0, 0)

Example #5

def test_map():
    from six.moves import map
    assert six.advance_iterator(map(lambda x: x + 1, range(2))) == 1

Example #6

def test_filter_false():
    from six.moves import filterfalse
    f = filterfalse(lambda x: x % 3, range(10))
    assert six.advance_iterator(f) == 0
    assert six.advance_iterator(f) == 3
    assert six.advance_iterator(f) == 6

Example #7

def test_filter():
    from six.moves import filter
    f = filter(lambda x: x % 2, range(10))
    assert six.advance_iterator(f) == 1

Example #8

File: test_six.py Project: theguardian/CherryStrap

def test_zip_longest():
    from six.moves import zip_longest
    it = zip_longest(range(2), range(1))

    assert six.advance_iterator(it) == (0, 0)
    assert six.advance_iterator(it) == (1, None)

Example #9

File: test_six.py Project: theguardian/CherryStrap

def test_zip():
    from six.moves import zip
    assert six.advance_iterator(zip(range(2), range(2))) == (0, 0)

Example #10

File: test_six.py Project: theguardian/CherryStrap

def test_map():
    from six.moves import map
    assert six.advance_iterator(map(lambda x: x + 1, range(2))) == 1

Example #11

File: test_six.py Project: theguardian/CherryStrap

def test_filter_false():
    from six.moves import filterfalse
    f = filterfalse(lambda x: x % 3, range(10))
    assert six.advance_iterator(f) == 0
    assert six.advance_iterator(f) == 3
    assert six.advance_iterator(f) == 6

Example #12

File: test_six.py Project: theguardian/CherryStrap

def test_filter():
    from six.moves import filter
    f = filter(lambda x: x % 2, range(10))
    assert six.advance_iterator(f) == 1