def test_constructors(self):
"""
Test NumDict constructors
"""
# dicts for testing
dict_0 = {} # Empty dictionary
dict_1 = {1: "Elephant"} # Single numeric key
dict_2 = {1: "Elephant", 2: "Mouse"} # Multiple numeric keys
dict_3 = {"3": "Aardvark"} # Numeric string key
dict_4 = {"3": "Aardvark", "4": "Ant"} # Multiple numeric string keys
dict_5 = {
5: "Cat",
"6": "Dog"
} # Mixed numeric and numeric string keys
dict_6 = {1: None, "2": None} # None as values
dict_7 = {0: "Empty"} # None as key
# Construct NumDicts from dicts
num_dict = NumDict()
num_dict_0 = NumDict(dict_0)
num_dict_1 = NumDict(dict_1)
num_dict_2 = NumDict(dict_2)
num_dict_3 = NumDict(dict_3)
num_dict_4 = NumDict(dict_4)
num_dict_5 = NumDict(dict_5)
num_dict_6 = NumDict(dict_6)
num_dict_7 = NumDict(dict_7)
# Most NumDicts from dicts should compare equal...
assert num_dict == {}
assert num_dict_0 == dict_0
assert num_dict_1 == dict_1
assert num_dict_2 == dict_2
# ...however, numeric keys are not equal to numeric string keys...
assert num_dict_3 != dict_3
assert num_dict_4 != dict_4
assert num_dict_5 != dict_5
assert num_dict_6 != dict_6
assert num_dict_7 == dict_7
# Construct dicts from NumDicts
dict_from_num_dict = dict(num_dict)
dict_from_num_dict_1 = dict(num_dict_1)
dict_from_num_dict_2 = dict(num_dict_2)
dict_from_num_dict_3 = dict(num_dict_3)
dict_from_num_dict_4 = dict(num_dict_4)
dict_from_num_dict_5 = dict(num_dict_5)
dict_from_num_dict_6 = dict(num_dict_6)
dict_from_num_dict_7 = dict(num_dict_7)
# All dicts from NumDicts should compare equal
assert num_dict == dict_from_num_dict
assert num_dict_1 == dict_from_num_dict_1
assert num_dict_2 == dict_from_num_dict_2
assert num_dict_3 == dict_from_num_dict_3
assert num_dict_4 == dict_from_num_dict_4
assert num_dict_5 == dict_from_num_dict_5
assert num_dict_6 == dict_from_num_dict_6
assert num_dict_7 == dict_from_num_dict_7
# Construct NumDicts from NumDicts
num_dict_from_num_dict = NumDict(num_dict)
num_dict_from_num_dict_0 = NumDict(num_dict_0)
num_dict_from_num_dict_1 = NumDict(num_dict_1)
num_dict_from_num_dict_2 = NumDict(num_dict_2)
num_dict_from_num_dict_3 = NumDict(num_dict_3)
num_dict_from_num_dict_4 = NumDict(num_dict_4)
num_dict_from_num_dict_5 = NumDict(num_dict_5)
num_dict_from_num_dict_6 = NumDict(num_dict_6)
num_dict_from_num_dict_7 = NumDict(num_dict_7)
# All NumDicts from NumDicts should compare equal
assert num_dict == num_dict_from_num_dict
assert num_dict_0 == num_dict_from_num_dict_0
assert num_dict_1 == num_dict_from_num_dict_1
assert num_dict_2 == num_dict_from_num_dict_2
assert num_dict_3 == num_dict_from_num_dict_3
assert num_dict_4 == num_dict_from_num_dict_4
assert num_dict_5 == num_dict_from_num_dict_5
assert num_dict_6 == num_dict_from_num_dict_6
assert num_dict_7 == num_dict_from_num_dict_7
# keyword arg constructor should fail
with self.assertRaises(TypeError):
NumDict(
one=1,
two=2) # Raise TypeError since we can't have numeric keywords
# item sequence constructors work fine...
assert NumDict([(1, "Elephant"), (2, "Mouse")]) == dict_from_num_dict_2
assert NumDict(dict=[(1,
"Elephant"), (2,
"Mouse")]) == dict_from_num_dict_2
assert NumDict([(1, "Elephant"),
("2", "Mouse")]) == dict_from_num_dict_2
assert NumDict(dict=[("1",
"Elephant"), (2,
"Mouse")]) == dict_from_num_dict_2
# ...unless you have a non-numeric key
with self.assertRaises(TypeError):
NumDict([("Rat", 11), ("Snake", 12)])
with self.assertRaises(TypeError):
NumDict(dict=[("Rat", 11), ("Snake", 12)])
# combining item sequence constructors with keyword args does not work
with self.assertRaises(
TypeError
): # Raise TypeError since we can't have numeric keywords
NumDict([(1, "one"), (2, "two")], two=3, five=4)
# alternate constructors
dict_8 = {1: "Echo", 2: "Echo"}
assert NumDict.fromkeys("1 2".split()) == dict_from_num_dict_6
assert NumDict().fromkeys("1 2".split()) == dict_from_num_dict_6
assert NumDict.fromkeys("1 2".split(), "Echo") == dict_8
assert NumDict().fromkeys("1 2".split(), "Echo") == dict_8
assert num_dict_1.fromkeys("1 2".split()) is not num_dict_1
self.assertIsInstance(num_dict_1.fromkeys("1 2".split()), NumDict)
self.assertIsInstance(num_dict_2.fromkeys("1 2".split()), NumDict)
self.assertIsInstance(num_dict_3.fromkeys("1 2".split()), NumDict)
self.assertIsInstance(num_dict_4.fromkeys("1 2".split()), NumDict)
def test_constructors(self):
"""
Test NumDict constructors
"""
# dicts for testing
dict_0 = {} # Empty dictionary
dict_1 = {1: 'Elephant'} # Single numeric key
dict_2 = {1: 'Elephant', 2: 'Mouse'} # Multiple numeric keys
dict_3 = {'3': 'Aardvark'} # Numeric string key
dict_4 = {'3': 'Aardvark', '4': 'Ant'} # Multiple numeric string keys
dict_5 = {
5: 'Cat',
'6': 'Dog'
} # Mixed numeric and numeric string keys
dict_6 = {1: None, '2': None} # None as values
dict_7 = {0: 'Empty'} # None as key
# Construct NumDicts from dicts
num_dict = NumDict()
num_dict_0 = NumDict(dict_0)
num_dict_1 = NumDict(dict_1)
num_dict_2 = NumDict(dict_2)
num_dict_3 = NumDict(dict_3)
num_dict_4 = NumDict(dict_4)
num_dict_5 = NumDict(dict_5)
num_dict_6 = NumDict(dict_6)
num_dict_7 = NumDict(dict_7)
# Most NumDicts from dicts should compare equal...
self.assertEqual(num_dict, {})
self.assertEqual(num_dict_0, dict_0)
self.assertEqual(num_dict_1, dict_1)
self.assertEqual(num_dict_2, dict_2)
# ...however, numeric keys are not equal to numeric string keys...
self.assertNotEqual(num_dict_3, dict_3)
self.assertNotEqual(num_dict_4, dict_4)
self.assertNotEqual(num_dict_5, dict_5)
self.assertNotEqual(num_dict_6, dict_6)
self.assertEqual(num_dict_7, dict_7)
# Construct dicts from NumDicts
dict_from_num_dict = dict(num_dict)
dict_from_num_dict_1 = dict(num_dict_1)
dict_from_num_dict_2 = dict(num_dict_2)
dict_from_num_dict_3 = dict(num_dict_3)
dict_from_num_dict_4 = dict(num_dict_4)
dict_from_num_dict_5 = dict(num_dict_5)
dict_from_num_dict_6 = dict(num_dict_6)
dict_from_num_dict_7 = dict(num_dict_7)
# All dicts from NumDicts should compare equal
self.assertEqual(num_dict, dict_from_num_dict)
self.assertEqual(num_dict_1, dict_from_num_dict_1)
self.assertEqual(num_dict_2, dict_from_num_dict_2)
self.assertEqual(num_dict_3, dict_from_num_dict_3)
self.assertEqual(num_dict_4, dict_from_num_dict_4)
self.assertEqual(num_dict_5, dict_from_num_dict_5)
self.assertEqual(num_dict_6, dict_from_num_dict_6)
self.assertEqual(num_dict_7, dict_from_num_dict_7)
# Construct NumDicts from NumDicts
num_dict_from_num_dict = NumDict(num_dict)
num_dict_from_num_dict_0 = NumDict(num_dict_0)
num_dict_from_num_dict_1 = NumDict(num_dict_1)
num_dict_from_num_dict_2 = NumDict(num_dict_2)
num_dict_from_num_dict_3 = NumDict(num_dict_3)
num_dict_from_num_dict_4 = NumDict(num_dict_4)
num_dict_from_num_dict_5 = NumDict(num_dict_5)
num_dict_from_num_dict_6 = NumDict(num_dict_6)
num_dict_from_num_dict_7 = NumDict(num_dict_7)
# All NumDicts from NumDicts should compare equal
self.assertEqual(num_dict, num_dict_from_num_dict)
self.assertEqual(num_dict_0, num_dict_from_num_dict_0)
self.assertEqual(num_dict_1, num_dict_from_num_dict_1)
self.assertEqual(num_dict_2, num_dict_from_num_dict_2)
self.assertEqual(num_dict_3, num_dict_from_num_dict_3)
self.assertEqual(num_dict_4, num_dict_from_num_dict_4)
self.assertEqual(num_dict_5, num_dict_from_num_dict_5)
self.assertEqual(num_dict_6, num_dict_from_num_dict_6)
self.assertEqual(num_dict_7, num_dict_from_num_dict_7)
# keyword arg constructor should fail
with self.assertRaises(TypeError):
NumDict(
one=1,
two=2) # Raise TypeError since we can't have numeric keywords
# item sequence constructors work fine...
self.assertEqual(NumDict([(1, 'Elephant'), (2, 'Mouse')]),
dict_from_num_dict_2)
self.assertEqual(NumDict(dict=[(1, 'Elephant'), (2, 'Mouse')]),
dict_from_num_dict_2)
self.assertEqual(NumDict([(1, 'Elephant'), ('2', 'Mouse')]),
dict_from_num_dict_2)
self.assertEqual(NumDict(dict=[('1', 'Elephant'), (2, 'Mouse')]),
dict_from_num_dict_2)
# ...unless you have a non-numeric key
with self.assertRaises(TypeError):
NumDict([('Rat', 11), ('Snake', 12)])
with self.assertRaises(TypeError):
NumDict(dict=[('Rat', 11), ('Snake', 12)])
# combining item sequence constructors with keyword args does not work
with self.assertRaises(
TypeError
): # Raise TypeError since we can't have numeric keywords
NumDict([(1, 'one'), (2, 'two')], two=3, five=4)
# alternate constructors
dict_8 = {1: 'Echo', 2: 'Echo'}
self.assertEqual(NumDict.fromkeys('1 2'.split()), dict_from_num_dict_6)
self.assertEqual(NumDict().fromkeys('1 2'.split()),
dict_from_num_dict_6)
self.assertEqual(NumDict.fromkeys('1 2'.split(), 'Echo'), dict_8)
self.assertEqual(NumDict().fromkeys('1 2'.split(), 'Echo'), dict_8)
self.assertTrue(num_dict_1.fromkeys('1 2'.split()) is not num_dict_1)
self.assertIsInstance(num_dict_1.fromkeys('1 2'.split()), NumDict)
self.assertIsInstance(num_dict_2.fromkeys('1 2'.split()), NumDict)
self.assertIsInstance(num_dict_3.fromkeys('1 2'.split()), NumDict)
self.assertIsInstance(num_dict_4.fromkeys('1 2'.split()), NumDict)