Class: Apib::MockServer

Inherits:
Object
  • Object
show all
Defined in:
lib/apib/mock_server.rb,
lib/apib/mock_server/version.rb

Overview

Rack compatible mock server from an API Blueprint document.

Example:

require "apib/mock_server"
require "webmock"
base_url = "http://test.com"
blueprint = Rails.root.join("api-blueprints", "my.apib").read
app = Apib::MockServer.new(base_url, blueprint)
WebMock::StubRegistry.instance.register_request_stub(
  WebMock::RequestStub.new(:any, /#{base_url}/)
).to_rack(app)

Constant Summary collapse

VERSION = 
"1.0.1"

Instance Method Summary collapse

Constructor Details

#initialize(base_url, blueprint) ⇒ MockServer

Returns a new instance of MockServer.



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# File 'lib/apib/mock_server.rb', line 20

def initialize(base_url, blueprint)
  @mocks = {}
  ast(blueprint).resource_groups.flat_map(&:resources).each do |resource|
    uri_template = Addressable::Template.new(base_url.to_s +
                                             resource.uri_template)
    @mocks[uri_template] = resource.actions.map { |a| [a.method, a] }.to_h
  end
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/apib/mock_server.rb', line 29

def call(env)
  request = Rack::Request.new(env)
  action = match(request)
  return [404, {}, []] unless action
  responses(action).first || [500, {}, []]
end

#headers(response) ⇒ Object 



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# File 'lib/apib/mock_server.rb', line 47

def headers(response)
  response.headers.collection.map { |h| [h[:name], h[:value]] }.to_h
end

#match(request) ⇒ Object 



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# File 'lib/apib/mock_server.rb', line 36

def match(request)
  template = @mocks.keys.find { |uri| uri.match(request.url) }
  @mocks[template][request.request_method] if template
end

#responses(action) ⇒ Object 



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# File 'lib/apib/mock_server.rb', line 41

def responses(action)
  action.examples.flat_map(&:responses).map do |response|
    [response.name.to_i, headers(response), [response.body]]
  end
end