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19 lines
545 B
19 lines
545 B
from toolz.compatibility import map, filter, iteritems, iterkeys, itervalues
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def test_map_filter_are_lazy():
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def bad(x):
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raise Exception()
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map(bad, [1, 2, 3])
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filter(bad, [1, 2, 3])
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def test_dict_iteration():
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d = {'a': 1, 'b': 2, 'c': 3}
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assert not isinstance(iteritems(d), list)
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assert not isinstance(iterkeys(d), list)
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assert not isinstance(itervalues(d), list)
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assert set(iteritems(d)) == set(d.items())
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assert set(iterkeys(d)) == set(d.keys())
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assert set(itervalues(d)) == set(d.values())
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