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45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
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from datahub.utilities.ordered_set import OrderedSet
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def test_ordered_set():
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# Test initialization
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ordered_set: OrderedSet[int] = OrderedSet()
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assert len(ordered_set) == 0
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# Test adding items
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ordered_set.add(1)
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ordered_set.add(2)
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ordered_set.add(3)
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assert len(ordered_set) == 3
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# Test adding duplicate item
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ordered_set.add(1)
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assert len(ordered_set) == 3
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# Test discarding item
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ordered_set.discard(2)
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assert len(ordered_set) == 2
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assert 2 not in ordered_set
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# Test updating with iterable
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ordered_set.update([4, 5, 6])
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assert len(ordered_set) == 5
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assert 4 in ordered_set
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assert 5 in ordered_set
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assert 6 in ordered_set
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# Test containment check
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assert 3 in ordered_set
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assert 7 not in ordered_set
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# Test iteration
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items = list(ordered_set)
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assert items == [1, 3, 4, 5, 6]
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# Test reverse iteration
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items = list(reversed(ordered_set))
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assert items == [6, 5, 4, 3, 1]
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# Test string representation
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assert repr(ordered_set) == "OrderedSet([1, 3, 4, 5, 6])"
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