52 lines
1.4 KiB
Python
52 lines
1.4 KiB
Python
# Tests domain errors in math functions
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try:
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import math
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except ImportError:
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print("SKIP")
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raise SystemExit
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inf = float('inf')
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nan = float('nan')
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# single argument functions
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for name, f, args in (
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('fabs', math.fabs, ()),
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('ceil', math.ceil, ()),
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('floor', math.floor, ()),
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('trunc', math.trunc, ()),
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('sqrt', math.sqrt, (-1, 0)),
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('exp', math.exp, ()),
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('sin', math.sin, ()),
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('cos', math.cos, ()),
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('tan', math.tan, ()),
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('asin', math.asin, (-1.1, 1, 1.1)),
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('acos', math.acos, (-1.1, 1, 1.1)),
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('atan', math.atan, ()),
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('ldexp', lambda x: math.ldexp(x, 0), ()),
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('radians', math.radians, ()),
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('degrees', math.degrees, ()),
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):
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for x in args + (inf, nan):
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try:
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ans = f(x)
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print('%.4f' % ans)
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except ValueError:
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print(name, 'ValueError')
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except OverflowError:
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print(name, 'OverflowError')
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# double argument functions
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for name, f, args in (
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('pow', math.pow, ((0, 2), (-1, 2), (0, -1), (-1, 2.3))),
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('fmod', math.fmod, ((1.2, inf), (1.2, 0), (inf, 1.2))),
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('atan2', math.atan2, ((0, 0),)),
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('copysign', math.copysign, ()),
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):
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for x in args + ((0, inf), (inf, 0), (inf, inf), (inf, nan), (nan, inf), (nan, nan)):
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try:
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ans = f(*x)
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print('%.4f' % ans)
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except ValueError:
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print(name, 'ValueError')
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