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60 lines
1.0 KiB
Python
60 lines
1.0 KiB
Python
from testutils import assert_raises
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# simple values
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assert max(0, 0) == 0
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assert max(1, 0) == 1
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assert max(1.0, 0.0) == 1.0
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assert max(-1, 0) == 0
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assert max(1, 2, 3) == 3
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# iterables
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assert max([1, 2, 3]) == 3
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assert max((1, 2, 3)) == 3
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assert (
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max(
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{
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"a": 0,
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"b": 1,
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}
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)
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== "b"
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)
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assert max([1, 2], default=0) == 2
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assert max([], default=0) == 0
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assert_raises(ValueError, max, [])
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# key parameter
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assert max(1, 2, -3, key=abs) == -3
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assert max([1, 2, -3], key=abs) == -3
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# no argument
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assert_raises(TypeError, max)
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# one non-iterable argument
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assert_raises(TypeError, max, 1)
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# custom class
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class MyComparable:
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nb = 0
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def __init__(self):
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self.my_nb = MyComparable.nb
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MyComparable.nb += 1
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def __gt__(self, other):
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return self.my_nb > other.my_nb
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first = MyComparable()
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second = MyComparable()
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assert max(first, second) == second
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assert max([first, second]) == second
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class MyNotComparable:
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pass
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assert_raises(TypeError, max, MyNotComparable(), MyNotComparable())
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