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big: Test negative inputs as well.

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This commit is contained in:
Jeroen van Rijn
2021-07-29 21:33:45 +02:00
parent 385b9c9922
commit 961adfedd9
1 changed files with 13 additions and 3 deletions
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16
core/math/big/test.py
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@@ -171,7 +171,15 @@ def test_div_two(a = 0, b = 0, radix = 10, expected_error = E_None, expected_res
print("Exception with arguments:", a, b, radix)
return False
if expected_result == None:
expected_result = a // b if b != 0 else None
#
# We don't round the division results, so if one component is negative, we're off by one.
#
if a < 0 and b > 0:
expected_result = int(-(abs(a) / b))
elif b < 0 and a > 0:
expected_result = int(-(a / abs((b))))
else:
expected_result = a // b if b != 0 else None
return test("test_div_two", res, [sa_c, sb_c, radix], expected_error, expected_result)
@@ -264,11 +272,13 @@ if __name__ == '__main__':
TIMINGS = {}
for i in range(ITERATIONS):
a = randint(0, 1 << BITS)
a = randint(-(1 << BITS), 1 << BITS)
b = randint(-(1 << BITS), 1 << BITS)
if test_proc == test_div_two:
# We've already tested division by zero above.
b = randint(1, 1 << BITS)
if b == 0:
b == 42
elif test_proc == test_log:
# We've already tested log's domain errors.
a = randint(1, 1 << BITS)