mirror of https://github.com/jab/bidict.git
44 lines
1.2 KiB
Plaintext
44 lines
1.2 KiB
Plaintext
# Copyright 2018 Joshua Bronson. All Rights Reserved.
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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Test for consistency in ordered bidicts after handling duplicate keys/values
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(when passing python's -O flag, this would previously fail
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due to reliance on side effects in assert statements)::
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>>> from bidict import OrderedBidict, DuplicationError, RAISE, OVERWRITE
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>>> b = OrderedBidict([(0, 1)])
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>>> exc = None
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>>> try:
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... b.update([(0, 2), (3, 4), (5, 4)])
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... except DuplicationError as e:
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... exc = e
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>>> exc is not None
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True
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>>> len(b.inv)
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1
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>>> exc = None
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>>> try:
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... b.putall([(2, 1), (2, 3)], on_dup_key=RAISE, on_dup_val=OVERWRITE)
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... except DuplicationError as e:
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... exc = e
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>>> exc is not None
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True
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>>> len(b)
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1
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>>> b.forceupdate([(0, 1), (2, 3), (0, 3)])
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>>> b
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OrderedBidict([(0, 3)])
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Test iterating over an ordered bidict as well as reversing::
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>>> b[4] = 5
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>>> b
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OrderedBidict([(0, 3), (4, 5)])
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>>> list(iter(b))
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[0, 4]
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>>> list(reversed(b))
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[4, 0]
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