Commit 67a48136 authored by Damien George's avatar Damien George
Browse files

tests/extmod/urandom: Add urandom tests for error cases.

parent f84b3416
......@@ -17,3 +17,9 @@ random.seed(1)
r = random.getrandbits(16)
random.seed(1)
print(random.getrandbits(16) == r)
# check that it throws an error for zero bits
try:
random.getrandbits(0)
except ValueError:
print('ValueError')
......@@ -16,6 +16,31 @@ for i in range(50):
assert 2 <= random.randrange(2, 6) < 6
assert -2 <= random.randrange(-2, 2) < 2
assert random.randrange(1, 9, 2) in (1, 3, 5, 7)
assert random.randrange(2, 1, -1) in (1, 2)
# empty range
try:
random.randrange(0)
except ValueError:
print('ValueError')
# empty range
try:
random.randrange(2, 1)
except ValueError:
print('ValueError')
# zero step
try:
random.randrange(2, 1, 0)
except ValueError:
print('ValueError')
# empty range
try:
random.randrange(2, 1, 1)
except ValueError:
print('ValueError')
print('randint')
for i in range(50):
......@@ -23,11 +48,23 @@ for i in range(50):
assert 2 <= random.randint(2, 6) <= 6
assert -2 <= random.randint(-2, 2) <= 2
# empty range
try:
random.randint(2, 1)
except ValueError:
print('ValueError')
print('choice')
lst = [1, 2, 5, 6]
for i in range(50):
assert random.choice(lst) in lst
# empty sequence
try:
random.choice([])
except IndexError:
print('IndexError')
print('random')
for i in range(50):
assert 0 <= random.random() < 1
......
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