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require 'zlib'
require 'vcr/cassette/serializers'
module VCR
class Cassette
class Serializers
# The compressed serializer. This serializer wraps the YAML serializer
# to write compressed cassettes to disk.
#
# Cassettes containing responses with JSON data often compress at greater
# than 10:1. The tradeoff is that cassettes will not diff nicely or be
# easily inspectable or editable.
#
# @see YAML
module Compressed
extend self
# The file extension to use for this serializer.
#
# @return [String] "zz"
def file_extension
'zz'
end
# Serializes the given hash using YAML and Zlib.
#
# @param [Hash] hash the object to serialize
# @return [String] the compressed cassette data
def serialize(hash)
string = VCR::Cassette::Serializers::YAML.serialize(hash)
Zlib::Deflate.deflate(string)
end
# Deserializes the given compressed cassette data.
#
# @param [String] string the compressed YAML cassette data
# @return [Hash] the deserialized object
def deserialize(string)
yaml = Zlib::Inflate.inflate(string)
VCR::Cassette::Serializers::YAML.deserialize(yaml)
end
end
end
end
end
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