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 <title>env_for (Rack::MockRequest)</title>
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 <pre># File lib/rack/mock.rb, line 88
 def self.env_for(uri=&quot;&quot;, opts={})
 uri = parse_uri_rfc2396(uri)
 uri.path = &quot;/#{uri.path}&quot; unless uri.path[0] == ?/

env = DEFAULT_ENV.dup

env[REQUEST_METHOD] = opts[:method] ? opts[:method].to_s.upcase : &quot;GET&quot;
 env[&quot;SERVER_NAME&quot;] = uri.host || &quot;example.org&quot;
 env[&quot;SERVER_PORT&quot;] = uri.port ? uri.port.to_s : &quot;80&quot;
 env[QUERY_STRING] = uri.query.to_s
 env[PATH_INFO] = (!uri.path || uri.path.empty?) ? &quot;/&quot; : uri.path
 env[&quot;rack.url_scheme&quot;] = uri.scheme || &quot;http&quot;
 env[&quot;HTTPS&quot;] = env[&quot;rack.url_scheme&quot;] == &quot;https&quot; ? &quot;on&quot; : &quot;off&quot;

env[SCRIPT_NAME] = opts[:script_name] || &quot;&quot;

if opts[:fatal]
 env[&quot;rack.errors&quot;] = FatalWarner.new
 else
 env[&quot;rack.errors&quot;] = StringIO.new
 end

if params = opts[:params]
 if env[REQUEST_METHOD] == &quot;GET&quot;
 params = Utils.parse_nested_query(params) if params.is_a?(String)
 params.update(Utils.parse_nested_query(env[QUERY_STRING]))
 env[QUERY_STRING] = Utils.build_nested_query(params)
 elsif !opts.has_key?(:input)
 opts[&quot;CONTENT_TYPE&quot;] = &quot;application/x-www-form-urlencoded&quot;
 if params.is_a?(Hash)
 if data = Utils::Multipart.build_multipart(params)
 opts[:input] = data
 opts[&quot;CONTENT_LENGTH&quot;] ||= data.length.to_s
 opts[&quot;CONTENT_TYPE&quot;] = &quot;multipart/form-data; boundary=#{Utils::Multipart::MULTIPART_BOUNDARY}&quot;
 else
 opts[:input] = Utils.build_nested_query(params)
 end
 else
 opts[:input] = params
 end
 end
 end

empty_str = &quot;&quot;
 empty_str.force_encoding(&quot;ASCII-8BIT&quot;) if empty_str.respond_to? :force_encoding
 opts[:input] ||= empty_str
 if String === opts[:input]
 rack_input = StringIO.new(opts[:input])
 else
 rack_input = opts[:input]
 end

rack_input.set_encoding(Encoding::BINARY) if rack_input.respond_to?(:set_encoding)
 env['rack.input'] = rack_input

env[&quot;CONTENT_LENGTH&quot;] ||= env[&quot;rack.input&quot;].length.to_s

opts.each { |field, value|
 env[field] = value if String === field
 }

env
 end</pre>
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