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90 lines
1.9 KiB
Python
90 lines
1.9 KiB
Python
import math
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from testutils import assertRaises, assert_raises
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# assert(math.exp(2) == math.exp(2.0))
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# assert(math.exp(True) == math.exp(1.0))
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#
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# class Conversible():
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# def __float__(self):
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# print("Converting to float now!")
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# return 1.1111
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#
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# assert math.log(1.1111) == math.log(Conversible())
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# roundings
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assert int.__trunc__
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assert int.__floor__
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assert int.__ceil__
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# assert float.__trunc__
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with assertRaises(AttributeError):
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assert float.__floor__
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with assertRaises(AttributeError):
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assert float.__ceil__
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assert math.trunc(2) == 2
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assert math.ceil(3) == 3
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assert math.floor(4) == 4
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assert math.trunc(2.2) == 2
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assert math.ceil(3.3) == 4
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assert math.floor(4.4) == 4
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class A(object):
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def __trunc__(self):
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return 2
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def __ceil__(self):
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return 3
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def __floor__(self):
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return 4
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assert math.trunc(A()) == 2
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assert math.ceil(A()) == 3
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assert math.floor(A()) == 4
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class A(object):
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def __trunc__(self):
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return 2.2
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def __ceil__(self):
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return 3.3
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def __floor__(self):
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return 4.4
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assert math.trunc(A()) == 2.2
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assert math.ceil(A()) == 3.3
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assert math.floor(A()) == 4.4
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class A(object):
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def __trunc__(self):
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return 'trunc'
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def __ceil__(self):
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return 'ceil'
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def __floor__(self):
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return 'floor'
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assert math.trunc(A()) == 'trunc'
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assert math.ceil(A()) == 'ceil'
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assert math.floor(A()) == 'floor'
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with assertRaises(TypeError):
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math.trunc(object())
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with assertRaises(TypeError):
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math.ceil(object())
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with assertRaises(TypeError):
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math.floor(object())
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assert str(math.frexp(0.0)) == str((+0.0, 0))
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assert str(math.frexp(-0.0)) == str((-0.0, 0))
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assert math.frexp(1) == (0.5, 1)
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assert math.frexp(1.5) == (0.75, 1)
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assert math.frexp(float('inf')) == (float('inf'), 0)
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assert str(math.frexp(float('nan'))) == str((float('nan'), 0))
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assert_raises(TypeError, lambda: math.frexp(None))
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