31 lines
815 B
Python
31 lines
815 B
Python
""" Test fast_dict.
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"""
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import numpy as np
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from sklearn.utils._fast_dict import IntFloatDict, argmin
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def test_int_float_dict():
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rng = np.random.RandomState(0)
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keys = np.unique(rng.randint(100, size=10).astype(np.intp))
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values = rng.rand(len(keys))
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d = IntFloatDict(keys, values)
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for key, value in zip(keys, values):
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assert d[key] == value
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assert len(d) == len(keys)
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d.append(120, 3.)
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assert d[120] == 3.0
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assert len(d) == len(keys) + 1
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for i in range(2000):
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d.append(i + 1000, 4.0)
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assert d[1100] == 4.0
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def test_int_float_dict_argmin():
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# Test the argmin implementation on the IntFloatDict
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keys = np.arange(100, dtype=np.intp)
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values = np.arange(100, dtype=np.float64)
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d = IntFloatDict(keys, values)
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assert argmin(d) == (0, 0)
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