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47 lines
1.6 KiB
Python
47 lines
1.6 KiB
Python
from vcr.serializers import compat
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from vcr.request import Request
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#version 1 cassettes started with VCR 1.0.x. Before 1.0.x, there was no versioning.
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CASSETTE_FORMAT_VERSION = 1
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"""
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Just a general note on the serialization philosophy here:
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I prefer cassettes to be human-readable if possible. Yaml serializes
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bytestrings to !!binary, which isn't readable, so I would like to serialize to
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strings and from strings, which yaml will encode as utf-8 automatically.
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All the internal HTTP stuff expects bytestrings, so this whole serialization
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process feels backwards.
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Serializing: bytestring -> string (yaml persists to utf-8)
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Deserializing: string (yaml converts from utf-8) -> bytestring
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"""
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def deserialize(cassette_string, serializer):
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data = serializer.deserialize(cassette_string)
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if not isinstance(data, dict):
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raise ValueError(
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"Your cassette files were generated in an older version "
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"of VCR. Delete your cassettes or run the migration script."
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"See http://git.io/mHhLBg for more details."
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)
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requests = [Request._from_dict(r['request']) for r in data['interactions']]
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responses = [compat.convert_to_bytes(r['response']) for r in data['interactions']]
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return requests, responses
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def serialize(cassette_dict, serializer):
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interactions = ([{
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'request': request._to_dict(),
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'response': compat.convert_to_unicode(response),
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} for request, response in zip(
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cassette_dict['requests'],
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cassette_dict['responses'],
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)])
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data = {
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'version': CASSETTE_FORMAT_VERSION,
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'interactions': interactions,
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}
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return serializer.serialize(data)
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