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set.py
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437 lines (306 loc) · 6.13 KB
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# set 字面量
s = { 0, 1, 2, 3, None, None }
assert len(s) == 5
assert 0 in s
assert 1 in s
assert 2 in s
assert 3 in s
assert None in s
## add
s = { 0, 1, 2, 3 }
s.add(1)
s.add(4)
s.add(None)
assert len(s) == 6
assert 0 in s
assert 1 in s
assert 2 in s
assert 3 in s
assert 4 in s
assert None in s
## clear
s = { 0, 1, 2, 3 }
s.clear()
assert len(s) == 0
assert 1 not in s
assert 2 not in s
assert None not in s
## copy
s = { 0, 1, 2, 3 }
sc = s.copy()
sc.add(4)
sc.add(5)
sc.add(6)
sc.add(None)
assert len(s) == 4
assert len(sc) == 8
assert 4 not in s
assert 5 not in s
assert 6 not in s
assert None not in s
assert 4 in sc
assert 5 in sc
assert 6 in sc
assert None in sc
## difference
s1 = { 1, 2, 3, 4, 5, 6, None }
s2 = { 2, 4, 6, 8, None }
s3 = { 0, 10, 3 }
s1_2 = s1.difference(s2)
assert len(s1_2) == 3
assert 1 in s1_2
assert 3 in s1_2
assert 5 in s1_2
s1_2_3 = s1.difference(s2, s3)
assert len(s1_2_3) == 2
assert 1 in s1_2_3
assert 5 in s1_2_3
## difference_update
s1 = { 1, 2, 3, 4, 5, 6, None }
s2 = { 2, 4, 6, 8, None }
s3 = { 0, 10, 3 }
s1.difference_update(s2)
assert len(s1) == 3
assert 1 in s1
assert 3 in s1
assert 5 in s1
s1 = { 1, 2, 3, 4, 5, 6, None }
s1.difference_update(s2, s3)
assert len(s1) == 2
assert 1 in s1
assert 5 in s1
## discard
s = {'a', 1, 'c', 'a', 'd', None}
assert len(s) == 5
s.discard(1)
assert 1 not in s
s.discard('a')
s.discard('c')
s.discard(None)
assert 'a' not in s
assert 'c' not in s
assert None not in s
## intersection
s1 = { 1, 2, 3, 4, 5, 6, None }
s2 = { 2, 4, 6, 8, None }
s3 = { 0, 10, 3 }
s1and2 = s1.intersection(s2)
assert len(s1and2) == 4
assert 2 in s1and2
assert 4 in s1and2
assert 6 in s1and2
assert None in s1and2
assert 1 not in s1and2
assert 3 not in s1and2
assert 5 not in s1and2
assert 8 not in s1and2
s1and2and3 = s1.intersection(s2, s3)
assert len(s1and2and3) == 0
## intersection_update
s1 = { 1, 2, 3, 4, 5, 6, None }
s2 = { 2, 4, 6, 8, None }
s3 = { 0, 10, 3 }
s1.intersection_update(s2)
assert len(s1) == 4
assert 2 in s1
assert 4 in s1
assert 6 in s1
assert None in s1
assert 1 not in s1
assert 3 not in s1
assert 5 not in s1
assert 8 not in s1
s1.intersection_update(s2, s3)
assert len(s1) == 0
## isdisjoint
s1 = { 1, 2, 3, 4, 5, 6, None }
s2 = { 2, 4, 6, 8, None}
s3 = { 0, 10, 3 }
assert not s1.isdisjoint(s2)
assert not s1.isdisjoint(s3)
assert s2.isdisjoint(s3)
## issubset
s1 = { 1, 2, 3, 4, 5, 6, None }
s2 = { 2, 4, 6, 8 }
s3 = { 0, 10, 3 }
s4 = { 2, 6 }
assert s1.issubset(s1)
assert not s1.issubset(s2)
assert not s1.issubset(s3)
assert not s1.issubset(s4)
assert s4.issubset(s1)
assert s4.issubset(s2)
assert not s4.issubset(s3)
assert s4.issubset(s4)
## issuperset
s1 = { 1, 2, 3, 4, 5, 6, None }
s2 = { 2, 4, 6, 8 }
s3 = { 0, 10, 3 }
s4 = { 2, 6 }
assert s1.issuperset(s1)
assert not s1.issuperset(s2)
assert not s1.issuperset(s3)
assert s1.issuperset(s4)
assert not s4.issuperset(s1)
assert not s4.issuperset(s2)
assert not s4.issuperset(s3)
assert s4.issuperset(s4)
## pop
s1 = { 1, 2, 3, 4, 5, 6, None }
s2 = s1.copy()
for i in range(len(s1)):
e = s1.pop()
assert e not in s1
assert e in s2
assert len(s1) == 0
## remove
s = {'a', 1, 'c', None}
assert len(s) == 4
assert 'a' in s
assert 1 in s
assert 'c' in s
assert None in s
s.remove('a')
s.remove(1)
assert len(s) == 2
assert 'a' not in s
assert 1 not in s
assert 'c' in s
assert None in s
## symmetric_difference
s1 = { 1, 2, 3, 4, 5, 6 }
s2 = { 2, 4, 6, 8 }
s3 = { 0, 10, 3 }
s4 = { 2, 6 }
s1_sym_s1 = s1.symmetric_difference(s1)
s1_sym_s2 = s1.symmetric_difference(s2)
s1_sym_s3 = s1.symmetric_difference(s3)
s1_sym_s4 = s1.symmetric_difference(s4)
assert len(s1_sym_s1) == 0
assert len(s1_sym_s2) == 4
assert 1 in s1_sym_s2
assert 3 in s1_sym_s2
assert 5 in s1_sym_s2
assert 8 in s1_sym_s2
assert len(s1_sym_s3) == 7
assert 1 in s1_sym_s3
assert 2 in s1_sym_s3
assert 4 in s1_sym_s3
assert 5 in s1_sym_s3
assert 6 in s1_sym_s3
assert 0 in s1_sym_s3
assert 10 in s1_sym_s3
assert len(s1_sym_s4) == 4
assert 1 in s1_sym_s4
assert 3 in s1_sym_s4
assert 4 in s1_sym_s4
assert 5 in s1_sym_s4
## symmetric_difference_update
s1 = { 1, 2, 3, 4, 5, 6 }
s2 = { 2, 4, 6, 8 }
s3 = { 0, 10, 3 }
s4 = { 2, 6 }
s1 = { 1, 2, 3, 4, 5, 6 }
s1.symmetric_difference_update(s1)
assert len(s1) == 0
s1 = { 1, 2, 3, 4, 5, 6 }
s1.symmetric_difference_update(s2)
assert len(s1) == 4
assert 1 in s1
assert 3 in s1
assert 5 in s1
assert 8 in s1
s1 = { 1, 2, 3, 4, 5, 6 }
s1.symmetric_difference_update(s3)
assert len(s1) == 7
assert 1 in s1
assert 2 in s1
assert 4 in s1
assert 5 in s1
assert 6 in s1
assert 0 in s1
assert 10 in s1
s1 = { 1, 2, 3, 4, 5, 6 }
s1.symmetric_difference_update(s4)
assert len(s1) == 4
assert 1 in s1
assert 3 in s1
assert 4 in s1
assert 5 in s1
## union
s1 = { 1, 2, 3, 4, 5, 6 }
s2 = { 2, 4, 6, 8 }
s3 = { 0, 10, 3 }
s1_union_s2s3 = s1.union(s2, s3)
assert len(s1_union_s2s3) == 9
assert 1 in s1_union_s2s3
assert 2 in s1_union_s2s3
assert 3 in s1_union_s2s3
assert 4 in s1_union_s2s3
assert 5 in s1_union_s2s3
assert 6 in s1_union_s2s3
assert 8 in s1_union_s2s3
assert 0 in s1_union_s2s3
assert 10 in s1_union_s2s3
## update
s1 = { 1, 2, 3, 4, 5, 6 }
s2 = { 2, 4, 6, 8 }
s3 = { 0, 10, 3 }
s1.update(s2, s3)
assert len(s1) == 9
assert 1 in s1
assert 2 in s1
assert 3 in s1
assert 4 in s1
assert 5 in s1
assert 6 in s1
assert 8 in s1
assert 0 in s1
assert 10 in s1
# operations
## in and not in
s = { 1, 2, 3, 4, 5, 6 }
assert 1 in s
assert 7 not in s
## no +
## no *
## no index and slice
#https://docs.python.org/3.5/library/stdtypes.html#set-types-set-frozenset
## <, <=, >, >=, FIXME __le not work in lua metatable
## |
s1 = { 1, 2, 3, 4, 5, 6 }
s2 = { 2, 4, 6, 8 }
s = s1 | s2
assert len(s) == 7
assert 1 in s
assert 2 in s
assert 3 in s
assert 4 in s
assert 5 in s
assert 6 in s
assert 8 in s
## &
s1 = { 1, 2, 3, 4, 5, 6 }
s2 = { 2, 4, 6, 8 }
s = s1 & s2
assert len(s) == 3
assert 2 in s
assert 4 in s
assert 6 in s
## -
s1 = { 1, 2, 3, 4, 5, 6 }
s2 = { 2, 4, 6, 8 }
s = s1 - s2
assert len(s) == 3
assert 1 in s
assert 3 in s
assert 5 in s
## ^
s1 = { 1, 2, 3, 4, 5, 6 }
s2 = { 2, 4, 6, 8 }
s = s1 ^ s2
assert len(s) == 4
assert 1 in s
assert 3 in s
assert 5 in s
assert 8 in s