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rails--rails/actionpack/lib/action_dispatch/testing/request_encoder.rb
Kasper Timm Hansen 333670ceb9 Let TestResponse assign a parser.
Previously we'd only assign a response parser when a request came through
Action Dispatch integration tests. This made calls to `parsed_body` when a TestResponse
was manually instantiated — though own doing or perhaps from a framework — unintentionally
blow up because no parser was set at that time.

The response can lookup a parser entirely through its own ivars. Extract request encoder to
its own file and assume that a viable content type is present at TestResponse instantiation.

Since the default response parser is a no-op, making `parsed_body` equal to `body`, no
exceptions will be thrown.
2016-07-10 22:02:12 +02:00

54 lines
1.4 KiB
Ruby

module ActionDispatch
class RequestEncoder # :nodoc:
@encoders = {}
attr_reader :response_parser
def initialize(mime_name, param_encoder, response_parser, url_encoded_form = false)
@mime = Mime[mime_name]
unless @mime
raise ArgumentError, "Can't register a request encoder for " \
"unregistered MIME Type: #{mime_name}. See `Mime::Type.register`."
end
@url_encoded_form = url_encoded_form
@path_format = ".#{@mime.symbol}" unless @url_encoded_form
@response_parser = response_parser || -> body { body }
@param_encoder = param_encoder || :"to_#{@mime.symbol}".to_proc
end
def append_format_to(path)
if @url_encoded_form
path
else
path + @path_format
end
end
def content_type
@mime.to_s
end
def encode_params(params)
@param_encoder.call(params)
end
def self.parser(content_type)
mime = Mime::Type.lookup(content_type)
encoder(mime ? mime.ref : nil).response_parser
end
def self.encoder(name)
@encoders[name] || WWWFormEncoder
end
def self.register_encoder(mime_name, param_encoder: nil, response_parser: nil)
@encoders[mime_name] = new(mime_name, param_encoder, response_parser)
end
register_encoder :json, response_parser: -> body { JSON.parse(body) }
WWWFormEncoder = new(:url_encoded_form, -> params { params }, nil, true)
end
end