def test_getitem_eqeq_nonempty_key_attr_no_match(self):
"""Test that dict[key_attr == unknown_val] where a matching value is not found raises a KeyError."""
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
ld.add(obj1)
with self.assertRaisesWith(KeyError, "'unknown_val'"):
ld['prop1 == unknown_val'] # same as ld['unknown_val']
def test_delitem_nocallback(self):
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
ld.add(obj1)
del ld['a']
self.assertEqual(ld, dict())
def test_add_value_missing_key(self):
"""Test that add raises an error if the value being set does not have the attribute key_attr"""
ld = LabelledDict(label='all_objects', key_attr='prop3')
obj1 = MyTestClass('a', 'b')
err_msg = r"Cannot set value '<.*>' in LabelledDict\. Value must have key 'prop3'\."
with self.assertRaisesRegex(ValueError, err_msg):
ld.add(obj1)
def test_addval_getitem_eqeq_unknown_val(self):
"""Test that dict[key_attr == val] with an unknown val raises an error even if there are other objects in
dict"""
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
ld.add(obj1)
with self.assertRaisesWith(KeyError, "'unknown_val'"):
ld['prop1 == unknown_val']
def test_clear_nocallback(self):
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
obj2 = MyTestClass('d', 'b')
ld.add(obj1)
ld.add(obj2)
ld.clear()
self.assertEqual(ld, dict())
def test_popitem_nocallback(self):
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
ld.add(obj1)
ret = ld.popitem()
self.assertEqual(ret, ('a', obj1))
self.assertEqual(ld, dict())
def test_addval_getitem_other_key_multi(self):
"""Test that dict[other_key == val] returns a list of matching objects"""
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
obj2 = MyTestClass('d', 'b')
obj3 = MyTestClass('f', 'e')
ld.add(obj1)
ld.add(obj2)
ld.add(obj3)
self.assertSetEqual(ld['prop2 == b'], set([obj1, obj2]))
def test_getitem_nonempty_other_key(self):
"""Test that dict[other_key == val] returns a set of matching objects."""
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
obj2 = MyTestClass('d', 'b')
obj3 = MyTestClass('f', 'e')
ld.add(obj1)
ld.add(obj2)
ld.add(obj3)
self.assertSetEqual(ld['prop2 == b'], {obj1, obj2})
def test_addval_getitem_other_key_none(self):
"""Test that dict[other_key == val] raises an error if val does not equal any of the other_key attribute values
in the dict, even when the other_key attribute exists"""
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
obj2 = MyTestClass('d', 'b')
obj3 = MyTestClass('f', 'e')
ld.add(obj1)
ld.add(obj2)
ld.add(obj3)
with self.assertRaisesWith(KeyError, "'c'"):
ld['prop2 == c']
def test_add_callable(self):
"""Test that add properly adds the object and calls the add_callable function."""
self.signal = None
def func(v):
self.signal = v
ld = LabelledDict(label='all_objects',
key_attr='prop1',
add_callable=func)
obj1 = MyTestClass('a', 'b')
ld.add(obj1)
self.assertIs(ld['a'], obj1)
self.assertIs(self.signal, obj1)
def test_delitem_callback(self):
self.signal = None
def func(v):
self.signal = v
ld = LabelledDict(label='all_objects',
key_attr='prop1',
remove_callable=func)
obj1 = MyTestClass('a', 'b')
ld.add(obj1)
del ld['a']
self.assertEqual(self.signal, obj1)
self.assertEqual(ld, dict())
def test_clear_callback(self):
self.signal = set()
def func(v):
self.signal.add(v)
ld = LabelledDict(label='all_objects',
key_attr='prop1',
remove_callable=func)
obj1 = MyTestClass('a', 'b')
obj2 = MyTestClass('d', 'b')
ld.add(obj1)
ld.add(obj2)
ld.clear()
self.assertSetEqual(self.signal, {obj2, obj1})
self.assertEqual(ld, dict())
def test_setitem_getitem_basic(self):
"""Test that setitem and getitem properly set and get the object"""
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
ld.add(obj1)
self.assertIs(ld['a'], obj1)
def test_add_basic(self):
"""Test add function on object with correct key_attr"""
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
ld.add(obj1)
self.assertIs(ld['a'], obj1)
def test_addval_getitem_other_key(self):
"""Test that dict[other_key == val] returns a list of matching objects"""
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
ld.add(obj1)
self.assertSetEqual(ld['prop2 == b'], {obj1})
def test_addval_getitem_eqeq(self):
"""Test that dict[key_attr == val] returns the single matching object"""
ld = LabelledDict(label='all_objects', key_attr='prop1')
obj1 = MyTestClass('a', 'b')
ld.add(obj1)
self.assertIs(ld['prop1 == a'], obj1)