pocketpy/tests/07_dict.py

emptyDict = dict()
assert len(emptyDict) == 0
tinydict = {'Name': 'Tom', 'Age': 7, 'Class': 'First'}
assert tinydict['Name'] == 'Tom';assert tinydict['Age'] == 7
tinydict['Age'] = 8;tinydict['School'] = "aaa"
assert tinydict['Age'] == 8;assert tinydict['School'] == "aaa"
del tinydict['Name']
assert len(tinydict) == 3
tinydict.clear()
assert len(tinydict) == 0

dict1 = {'user':'circle','num':[1,2,3]}
dict2 = dict1.copy()
for k,v in dict1.items():
    assert dict2[k] == v

tinydict = {'Name': 'circle', 'Age': 7}
tinydict2 = {'Sex': 'female' }
assert len(tinydict) == 2
assert len(tinydict2) == 1
tinydict.update(tinydict2)
updated_dict = {'Name': 'circle', 'Age': 7, 'Sex': 'female'}
for k,v in tinydict.items():
    assert updated_dict[k] == v
assert len(tinydict) == 3
assert tinydict == updated_dict

dishes = {'eggs': 2, 'sausage': 1, 'bacon': 1, 'spam': 500}
# dict is now ordered
assert dishes.keys() == ('eggs', 'sausage', 'bacon', 'spam')
assert dishes.values() == (2, 1, 1, 500)

d={1:"a",2:"b",3:"c"}
result=[]
for k,v in d.items():
    result.append(k)
    result.append(v)
assert len(result) == 6

del d[2]
assert len(d) == 2
assert d.keys() == (1, 3)
assert d.values() == ('a', 'c')
del d[1]
del d[3]
assert len(d) == 0

# test __eq__
d1 = {1:2, 3:4}
d2 = {3:4, 1:2}
d3 = {1:2, 3:4, 5:6}
assert d1 == d2
assert d1 != d3

a = dict([(1, 2), (3, 4)])
assert a == {1: 2, 3: 4}

assert a.pop(1) == 2
assert a == {3: 4}
assert a.pop(3) == 4
assert a == {}

# unpacking builder
a = {1:2, 3:4}
b = {**a, 5:6, **a}
assert b == {1: 2, 3: 4, 5: 6}

a = {}
b = {**a, 1:2, 3:4}
assert b == {1: 2, 3: 4}

a = {1:2, 3:4, 7:8}
b = {**a, 1:5, 3:6}
c = {**a, **b}
assert c == {1: 5, 3: 6, 7: 8}

a = {}
for i in range(1000):
    a[i] = i
assert len(a) == 1000
for i in range(1000):
    del a[i]
assert len(a) == 0