def test_audit():
"""Test the audit logging logic."""
cont = dicttools.ImplicitTrackingDict()
assert cont.finalize() == {}
cont['alpha'] = 5
assert cont.finalize() == {('alpha',): (5, None)}
cont['alpha'] = 6
assert cont.finalize() == {('alpha',): (6, 5)}
cont['alpha'] = 6
assert cont.log == {}
cont['alpha'] = 7
assert cont.log == {('alpha',): (7, 6)}
cont['alpha'] = 7
assert cont.log == {('alpha',): (7, 6)}
cont['alpha'] = 8
assert cont.log == {('alpha',): (8, 6)}
cont['alpha'] = 6
assert cont.log == {}
def test_pop():
"""Test ImplicitTrackingDict.pop."""
cont = dicttools.ImplicitTrackingDict({'alpha': 'bravo'})
assert cont.finalize() == {('alpha',): ('bravo', None)}
assert cont.pop('unset') is None
assert cont.finalize() == {}
del cont['unset']
assert cont.finalize() == {}
assert cont.pop('alpha') == 'bravo'
assert cont.finalize() == {('alpha',): (None, 'bravo')}
def test_missing():
"""Test ImplicitTrackingDict.__missing__."""
cont = dicttools.ImplicitTrackingDict()
assert list(cont.items()) == []
assert 'unset' not in cont
assert list(iter(cont)) == []
# __missing__
unset = cont['unset']
assert cont['unset'] is unset
assert unset == {}
assert isinstance(unset, dicttools.ImplicitTrackingDict)
assert cont.finalize() == {}
assert list(cont.items()) == []
assert 'unset' not in cont
assert list(iter(cont)) == []
def test_list():
"""Test TrackingList (via ImplicitTrackingDict.__setitem__)."""
cont = dicttools.ImplicitTrackingDict()
cont['alpha'] = [2, 4, 6] # extend
assert cont.finalize() == {('alpha',): ((2, 4, 6), ())}
cont['alpha'].append(8)
assert cont.finalize() == {('alpha',): ((2, 4, 6, 8), (2, 4, 6))}
cont['alpha'][1] = 10
assert cont.finalize() == {('alpha',): ((2, 10, 6, 8), (2, 4, 6, 8))}
cont['alpha'][0] = 2
assert cont.finalize() == {}
cont['alpha'][0] = 3
cont['alpha'][0] = 2
assert cont.finalize() == {}
assert cont['alpha'].pop(0) == 2
assert cont.finalize() == {('alpha',): ((10, 6, 8), (2, 10, 6, 8))}
cont['alpha'].sort()
assert cont.finalize() == {('alpha',): ((6, 8, 10), (10, 6, 8))}
cont['alpha'].remove(8)
assert cont.finalize() == {('alpha',): ((6, 10), (6, 8, 10))}
cont['alpha'].reverse()
assert cont.finalize() == {('alpha',): ((10, 6), (6, 10))}
cont['alpha'].insert(0, 20)
assert cont.finalize() == {('alpha',): ((20, 10, 6), (10, 6))}
cont['alpha'] = [5, 4, 3]
assert cont.finalize() == {('alpha',): ((5, 4, 3), (20, 10, 6))}
cont['alpha'].clear()
assert cont.finalize() == {('alpha',): ((), (5, 4, 3))}
def test_setitem():
"""Test ImplicitTrackingDict.__setitem__."""
cont = dicttools.ImplicitTrackingDict()
assert cont.log == {}
cont['alpha'] = {}
assert cont.log == {}
assert isinstance(cont['alpha'], dicttools.ImplicitTrackingDict)
assert cont['alpha'].log is cont.log
cont['alpha']['bravo'] = {}
assert cont.log == {}
assert cont['alpha']['bravo'].log is cont.log
cont['alpha']['bravo']['charlie'] = 5
cont['alpha']['bravo']['delta'] = 6
assert cont.finalize() == {
('alpha', 'bravo', 'charlie'): (5, None),
('alpha', 'bravo', 'delta'): (6, None)
}
cont['alpha'] = 7
assert cont.finalize() == {
('alpha', 'bravo', 'charlie'): (None, 5),
('alpha', 'bravo', 'delta'): (None, 6),
('alpha',): (7, None)
}
cont['alpha'] = b'ascii'
assert cont.finalize() == {('alpha',): ('ascii', 7)}
cont['alpha'] = None
assert cont.finalize() == {('alpha',): (None, 'ascii')}
assert 'alpha' not in cont