def test_replace_attributes_only_overridden_if_None(self):
for attrname in self.attributes[3:]:
good = {
attrname: ''
} # a False value != None to make readonly work
bad = {attrname: 'unwanted'}
assert '' == getattr(Property().replace(**good), attrname)
assert '' == getattr(Property(**good).replace(**bad), attrname)
def test_from_and_to_properties(self):
properties = [Property('a'),
Property('a.b', 5, int, '\d+', True, True, 'doc'),
Property('b', 5, int, '\d+', True, True, 'doc')]
conf = Configuration.from_properties(properties)
assert properties == list(conf.to_properties())
assert 'a' in conf
assert 'a.b' in conf
assert 'b' in conf
def test_type_inferrence(self):
for T in (bool, int, float, str, type(''),):
assert T.__name__ == Property(value=T()).type, T
class UnknownType:
pass
assert None == Property(value=UnknownType()).type
assert 'float' == Property('', 4, float).type
def test_builder(self):
properties = [Property('a', 5), Property('a.b', 6, int, '6.*', True, True, 'doc')]
cb = cfg.ConfigBuilder()
with cb['a'] as a:
a.value = 5
with a['b'] as ab:
ab.value = 6
ab.valid = '6.*'
ab.readonly = True
ab.hidden = True
ab.doc = 'doc'
assert properties == list(cb.to_configuration().to_properties())
def assert_value_conversion(kind, testvalue, expected):
p = Property('test', testvalue, type=kind)
actual = p.value
self.assertEqual(
expected, actual,
('Bad %s conversion for value: %r! expect: %r, actual: %r' %
(kind, p.value, expected, actual)))
def test_tupleness_attributes_and_defaults(self):
"""A property is a tuple with named values."""
default = OrderedDict.fromkeys(self.attributes, None)
default['key'] = ''
p = Property()
assert tuple(default.values()) == p, p
for attrname, value in default.items():
assert getattr(p, attrname) == value
def test_immutable(self):
p = Property()
assert p is not p.replace(**p.to_dict())
for attrname in self.attributes:
try:
setattr(p, attrname, None)
except AttributeError:
pass
else:
assert False, 'must not be able to change %r ' % (attrname, )
def test_cannot_replace_if_readonly(self):
Property(readonly=True).replace()
def test_key_is_normalized(self):
assert 'x.y' == Property('X.Y').key
def test_replace_changes_existing(self):
conf = Configuration.from_properties([Property('b', 'old')])
newvalues = {'b': 'replaced'}
assert newvalues == conf.replace(newvalues)
def test_update(self):
conf = Configuration.from_properties([Property('b', 'old')])
newvalues = {'b': 'replaced', 'c': 'new'}
assert newvalues == conf.update(newvalues)
def test_attribute_access(self):
p = Property('b', 5, int, '\d+', True, True, 'doc')
conf = Configuration.from_properties([p])
assert 5 == conf['b']
assert p == conf.property('b')
def test_autocast(self):
assert 13 == Property('', '13', int).value
def test_replace_value(self):
p = Property(value='original')
assert 'new' == p.replace(value='new').value
assert 'original' == p.replace(value=None).value
def test_replace_type(self):
assert 'int' == Property().replace(type=int).type
assert 'int' == Property(type=int).replace(type=str).type
def test_bad_value_for_type(self):
Property('', 'a', int)
def test_replace_key(self):
assert 'different.key' == Property().replace(key='different.key').key
Property('some.key').replace(key='different.key')
def test_replace_without_values(self):
p = Property('a', 5, int, '\d+', False, False, 'doc')
assert p == p.replace()
assert p == p.replace(**dict.fromkeys(self.attributes))
def test_to_dict(self):
p = Property('bla', 12, int, '\d+', True, True, '')
assert p == Property(**p.to_dict())
def test_None_value_is_not_cast_or_validated(self):
assert None == Property(type=bool, valid=lambda v: v is not None).value
def test_validation_by_callable(self):
Property('', False, valid=lambda v: v)
def test_validation_by_regex(self):
assert 0 == Property('', 0, valid='[0-9]').value
Property('', ['x'], valid='[0-9]')
