33 lines
722 B
Python
33 lines
722 B
Python
try:
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import urandom as random
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except ImportError:
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try:
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import random
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except ImportError:
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print("SKIP")
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raise SystemExit
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# check getrandbits returns a value within the bit range
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for b in (1, 2, 3, 4, 16, 32):
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for i in range(50):
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assert random.getrandbits(b) < (1 << b)
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# check that seed(0) gives a non-zero value
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random.seed(0)
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print(random.getrandbits(16) != 0)
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# check that PRNG is repeatable
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random.seed(1)
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r = random.getrandbits(16)
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random.seed(1)
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print(random.getrandbits(16) == r)
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# check that zero bits works
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print(random.getrandbits(0))
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# check that it throws an error for negative bits
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try:
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random.getrandbits(-1)
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except ValueError:
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print("ValueError")
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