Class: RackDoubles::Middleware

Inherits:
Object
  • Object
show all
Defined in:
lib/rack_doubles/middleware.rb

Defined Under Namespace

Classes: Response

Class Attribute Summary collapse

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app) {|_self| ... } ⇒ Middleware

Returns a new instance of Middleware.

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/rack_doubles/middleware.rb', line 24

def initialize(app, &block)
  @app = app
  @path = '/'
  yield self if block_given?
end

Class Attribute Details

.errors ⇒ Object

Returns the value of attribute errors.



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# File 'lib/rack_doubles/middleware.rb', line 10

def errors
  @errors
end

.requests ⇒ Object

Returns the value of attribute requests.



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# File 'lib/rack_doubles/middleware.rb', line 10

def requests
  @requests
end

.responses ⇒ Object

Returns the value of attribute responses.



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# File 'lib/rack_doubles/middleware.rb', line 10

def responses
  @responses
end

Instance Attribute Details

#path ⇒ Object

Returns the value of attribute path.



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# File 'lib/rack_doubles/middleware.rb', line 30

def path
  @path
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack_doubles/middleware.rb', line 32

def call(env)
  request = Rack::Request.new(env)
  if request.get?
     case request.path
     when /#{path}\/?$/
       [200, {"Content-Type" => "application/json"}, [responses.to_json]]
     when /log\/?$/
       [200, {"Content-Type" => "application/json"}, [requests.to_json]]
     else
       begin 
          response = responses.fetch(request.path)
          record_success request.path
          response
       rescue KeyError  
         record_error request.path
         @app.call(env)
       end
     end
  elsif request.delete?
    case request.path
    when path  
      responses.clear
      [200, {"Content-Type" => "application/json"}, [responses.to_json]]
    when /\/log/
      requests.clear
      [200, {"Content-Type" => "application/json"}, [requests.to_json]]
    else
      responses.delete request.path
      [200, {"Content-Type" => "application/json"}, [responses.to_json]]
    end
  elsif request.put?
    body_of_request = JSON.parse(request.body.read.to_s)
    status, headers, body = body_of_request
    begin
      raise ArgumentError if [status, headers].any?(&:nil?) || headers['Content-Type'].nil?
      responses.merge!({request.path => body_of_request})
      [201, { 'Content-Type' => 'application/json' }, [%|{ "url": "#{request.path}", "response": #{responses.fetch(request.path).to_json} }|]]
    rescue ArgumentError
      [400, { 'Content-Type' => 'application/json' }, [%|{ "reason": "Subbing a response requires the body of the PUT request to contain a tuple with the response status and header Content-Type" }|]]
    end
  end
end

#errors ⇒ Object 



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# File 'lib/rack_doubles/middleware.rb', line 20

def errors
  self.class.errors
end

#record_error(request_url) ⇒ Object 



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# File 'lib/rack_doubles/middleware.rb', line 83

def record_error request_url
  requests[request_url]['404'] += 1
end

#record_success(request_url) ⇒ Object 



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# File 'lib/rack_doubles/middleware.rb', line 79

def record_success request_url
  requests[request_url]['200'] += 1
end

#requests ⇒ Object 



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# File 'lib/rack_doubles/middleware.rb', line 16

def requests
  self.class.requests
end

#responses ⇒ Object 



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# File 'lib/rack_doubles/middleware.rb', line 12

def responses
  self.class.responses
end

#stub(path) ⇒ Object 



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# File 'lib/rack_doubles/middleware.rb', line 75

def stub path
  Response.new(responses, path)
end