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python3: make conversion to string deterministic#187

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ligurio/determenistic_response_print
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python3: make conversion to string deterministic#187
ligurio wants to merge 1 commit intomasterfrom
ligurio/determenistic_response_print

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@ligurio ligurio commented Jan 18, 2021

Response object is a unpacked msgpack structure, returned by Tarantool.
Nor msgpack-python [1] that used in tarantool-python nor msgpack [2]
itself cannot guarantee an order of keys in unpacked dictionaries.
Therefore we have different keys order with running tests under Python 2
and Python 3, for example box-py/call.test.py. To workaround a problem
proposed a conversion of dictionaries in a tuple to lists before
printing Response object.

  1. Add sort_keys parameter to Packer for stable dict packing. msgpack/msgpack-python#164
  2. Can ordering be enforced in msgpack. msgpack/msgpack#215

Response object is a unpacked msgpack structure, returned by Tarantool.
Nor msgpack-python [1] that used in tarantool-python nor msgpack [2]
itself cannot guarantee an order of keys in unpacked dictionaries.
Therefore we have different keys order with running tests under Python 2
and Python 3, for example box-py/call.test.py. To workaround a problem
proposed a conversion of dictionaries in a tuple to lists before
printing Response object.

1. msgpack/msgpack-python#164
2. msgpack/msgpack#215
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ligurio commented Jan 19, 2021

Discussed and decided to workaround a problem in a test itself.
See tarantool/tarantool#5538

@ligurio ligurio closed this Jan 19, 2021
@DifferentialOrange DifferentialOrange deleted the ligurio/determenistic_response_print branch November 9, 2022 10:34
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