34 lines
939 B
Python
34 lines
939 B
Python
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""" 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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from sklearn.utils.testing import assert_equal
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from sklearn.externals.six.moves import xrange
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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_equal(d[key], value)
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assert_equal(len(d), len(keys))
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d.append(120, 3.)
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assert_equal(d[120], 3.0)
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assert_equal(len(d), len(keys) + 1)
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for i in xrange(2000):
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d.append(i + 1000, 4.0)
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assert_equal(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_equal(argmin(d), (0, 0))
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