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- # test deletion
- rnd = 0
- keys = []
- while True:
- keys.append(rnd)
- rnd = ((rnd * 5) + 1) & 1023
- if rnd == 0:
- break
- assert len(keys) == 1024
- a = {k: k for k in keys}
- for i in range(10000):
- if i % 2 == 0:
- # del all keys
- for k in keys:
- del a[k]
- assert len(a) == 0
- else:
- # add keys back
- for k in keys:
- a[k] = k
- assert len(a) == len(keys)
- assert len(a) == len(keys)
- assert list(a.keys()) == keys # order matters
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