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from sympy.external.gmpy import LONG_MAX, iroot
from sympy.testing.pytest import raises
def test_iroot():
assert iroot(2, LONG_MAX) == (1, False)
assert iroot(2, LONG_MAX + 1) == (1, False)
for x in range(3):
assert iroot(x, 1) == (x, True)
raises(ValueError, lambda: iroot(-1, 1))
raises(ValueError, lambda: iroot(0, 0))
raises(ValueError, lambda: iroot(0, -1))
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