# File lib/rack/mock.rb, line 75
 75:     def self.env_for(uri="", opts={})
 76:       uri = URI(uri)
 77:       uri.path = "/#{uri.path}" unless uri.path[0] == ?/
 78: 
 79:       env = DEFAULT_ENV.dup
 80: 
 81:       env["REQUEST_METHOD"] = opts[:method] ? opts[:method].to_s.upcase : "GET"
 82:       env["SERVER_NAME"] = uri.host || "example.org"
 83:       env["SERVER_PORT"] = uri.port ? uri.port.to_s : "80"
 84:       env["QUERY_STRING"] = uri.query.to_s
 85:       env["PATH_INFO"] = (!uri.path || uri.path.empty?) ? "/" : uri.path
 86:       env["rack.url_scheme"] = uri.scheme || "http"
 87:       env["HTTPS"] = env["rack.url_scheme"] == "https" ? "on" : "off"
 88: 
 89:       env["SCRIPT_NAME"] = opts[:script_name] || ""
 90: 
 91:       if opts[:fatal]
 92:         env["rack.errors"] = FatalWarner.new
 93:       else
 94:         env["rack.errors"] = StringIO.new
 95:       end
 96: 
 97:       if params = opts[:params]
 98:         if env["REQUEST_METHOD"] == "GET"
 99:           params = Utils.parse_nested_query(params) if params.is_a?(String)
100:           params.update(Utils.parse_nested_query(env["QUERY_STRING"]))
101:           env["QUERY_STRING"] = Utils.build_nested_query(params)
102:         elsif !opts.has_key?(:input)
103:           opts["CONTENT_TYPE"] = "application/x-www-form-urlencoded"
104:           if params.is_a?(Hash)
105:             if data = Utils::Multipart.build_multipart(params)
106:               opts[:input] = data
107:               opts["CONTENT_LENGTH"] ||= data.length.to_s
108:               opts["CONTENT_TYPE"] = "multipart/form-data; boundary=#{Utils::Multipart::MULTIPART_BOUNDARY}"
109:             else
110:               opts[:input] = Utils.build_nested_query(params)
111:             end
112:           else
113:             opts[:input] = params
114:           end
115:         end
116:       end
117: 
118:       empty_str = ""
119:       empty_str.force_encoding("ASCII-8BIT") if empty_str.respond_to? :force_encoding
120:       opts[:input] ||= empty_str
121:       if String === opts[:input]
122:         rack_input = StringIO.new(opts[:input])
123:       else
124:         rack_input = opts[:input]
125:       end
126: 
127:       rack_input.set_encoding(Encoding::BINARY) if rack_input.respond_to?(:set_encoding)
128:       env['rack.input'] = rack_input
129: 
130:       env["CONTENT_LENGTH"] ||= env["rack.input"].length.to_s
131: 
132:       opts.each { |field, value|
133:         env[field] = value  if String === field
134:       }
135: 
136:       env
137:     end