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34 lines
1.1 KiB
Python
34 lines
1.1 KiB
Python
from testutils import assert_raises
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assert_raises(ZeroDivisionError, lambda: 5 / 0)
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assert_raises(ZeroDivisionError, lambda: 5 / -0.0)
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assert_raises(ZeroDivisionError, lambda: 5 / (2 - 2))
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assert_raises(ZeroDivisionError, lambda: 5 % 0)
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assert_raises(ZeroDivisionError, lambda: 5 // 0)
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assert_raises(ZeroDivisionError, lambda: 5.3 // (-0.0))
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assert_raises(ZeroDivisionError, divmod, 5, 0)
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assert issubclass(ZeroDivisionError, ArithmeticError)
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# 2.456984346552728
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res = 10**500 / (4 * 10**499 + 7 * 10**497 + 3 * 10**494)
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assert 2.456984 <= res <= 2.456985
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# 95.23809523809524
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res = 10**3000 / (10**2998 + 5 * 10**2996)
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assert 95.238095 <= res <= 95.238096
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assert 10**500 / (2 * 10 ** (500 - 308)) == 5e307
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assert 10**500 / (10 ** (500 - 308)) == 1e308
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assert_raises(
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OverflowError, lambda: 10**500 / (10 ** (500 - 309)), _msg="too big result"
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)
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# a bit more than f64::MAX = 1.7976931348623157e+308_f64
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assert (2 * 10**308) / 2 == 1e308
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# when dividing too big int by a float, the operation should fail
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assert_raises(
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OverflowError, lambda: (2 * 10**308) / 2.0, _msg="division of big int by float"
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)
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