PythonExtra/tests/basics/set_remove.py

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# basic test
2014-01-12 19:23:36 +01:00
s = {1}
print(s.remove(1))
print(list(s))
try:
print(s.remove(1), "!!!")
except KeyError as er:
print('KeyError', er.args[0])
2014-01-12 19:23:36 +01:00
else:
print("failed to raise KeyError")
# test sets of varying size
for n in range(20):
print('testing set with {} items'.format(n))
for i in range(n):
# create set
s = set()
for j in range(n):
s.add(str(j))
print(len(s))
# delete an item
s.remove(str(i))
print(len(s))
# check items
for j in range(n):
if str(j) in s:
if j == i:
print(j, 'in s, but it should not be')
else:
if j != i:
print(j, 'not in s, but it should be')