85822f32d4
Tests are a good thing in general. Also, found and fixed an edge-case bug with deserialization. Change-Id: Ic91e6242c0552d916c73237e7589388b0862013c
95 lines
2.8 KiB
Python
95 lines
2.8 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""A serializer to emit YAML but with request body in nicely formatted JSON."""
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import json
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import os
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import betamax.serializers.base
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import six
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import yaml
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def _should_use_block(value):
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for c in u"\u000a\u000d\u001c\u001d\u001e\u0085\u2028\u2029":
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if c in value:
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return True
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return False
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def _represent_scalar(self, tag, value, style=None):
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if style is None:
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if _should_use_block(value):
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style = '|'
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else:
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style = self.default_style
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node = yaml.representer.ScalarNode(tag, value, style=style)
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if self.alias_key is not None:
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self.represented_objects[self.alias_key] = node
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return node
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def _unicode_representer(dumper, uni):
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node = yaml.ScalarNode(tag=u'tag:yaml.org,2002:str', value=uni)
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return node
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def _indent_json(val):
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if not val:
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return ''
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return json.dumps(
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json.loads(val), indent=2,
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separators=(',', ': '), sort_keys=False,
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default=six.text_type)
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def _is_json_body(interaction):
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content_type = interaction['headers'].get('Content-Type', [])
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return 'application/json' in content_type
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class YamlJsonSerializer(betamax.serializers.base.BaseSerializer):
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name = "yamljson"
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@staticmethod
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def generate_cassette_name(cassette_library_dir, cassette_name):
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return os.path.join(
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cassette_library_dir, "{name}.yaml".format(name=cassette_name))
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def serialize(self, cassette_data):
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# Reserialize internal json with indentation
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for interaction in cassette_data['http_interactions']:
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for key in ('request', 'response'):
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if _is_json_body(interaction[key]):
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interaction[key]['body']['string'] = _indent_json(
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interaction[key]['body']['string'])
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class MyDumper(yaml.Dumper):
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"""Specialized Dumper which does nice blocks and unicode."""
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yaml.representer.BaseRepresenter.represent_scalar = _represent_scalar
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MyDumper.add_representer(six.text_type, _unicode_representer)
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return yaml.dump(
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cassette_data, Dumper=MyDumper, default_flow_style=False)
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def deserialize(self, cassette_data):
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try:
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return yaml.safe_load(cassette_data)
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except yaml.error.YAMLError:
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return {}
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