How to POST data in Rack::Test - ruby

i'm having problems understanding how to work with Rack::Test, the issue i have is with POST. This are the classes and the error:
hellotesting.rb
require 'sinatra'
post '/foo' do
"Hello #{params[:name]}."
end
This is the test:
require 'hellotesting'
require 'test/unit'
require 'rack/test'
set :environment, :test
class HelloWorldTest < Test::Unit::TestCase
def test_it_says_hello_to_you
browser = Rack::Test::Session.new(Rack::MockSession.new(Sinatra::Application))
post "/foo", "name" => "Bryan"
assert browser.last_response.ok?
assert_equal 'Hello Bryan', browser.last_response.body
end
end
And the output:
1) Error:
test_it_says_hello_to_you(HelloWorldTest):
ArgumentError: wrong number of arguments (1 for 0)
/Library/Ruby/Gems/1.8/gems/sinatra-1.2.6/lib/sinatra/base.rb:1141:in `name'
/Library/Ruby/Gems/1.8/gems/sinatra-1.2.6/lib/sinatra/base.rb:1141:in `send'
/Library/Ruby/Gems/1.8/gems/sinatra-1.2.6/lib/sinatra/base.rb:1141:in `compile!'
/Library/Ruby/Gems/1.8/gems/sinatra-1.2.6/lib/sinatra/base.rb:1141:in `each_pair'
/Library/Ruby/Gems/1.8/gems/sinatra-1.2.6/lib/sinatra/base.rb:1141:in `compile!'
/Library/Ruby/Gems/1.8/gems/sinatra-1.2.6/lib/sinatra/base.rb:1129:in `route'
/Library/Ruby/Gems/1.8/gems/sinatra-1.2.6/lib/sinatra/base.rb:1118:in `post'
(__DELEGATE__):3:in `send'
(__DELEGATE__):3:in `post'
testingjeison.rb:11:in `test_it_says_hello_to_you'

It may be that you need to include the Rack::Test mixins into your individual classes. I mainly use RSpec, which doesn't use classes, but does use a specialized variant of Ruby's include for pulling in extra functionality. You may want to try putting in include Rack::Test::Methods inside your HelloWorldTest case class definition. Sinatra's testing has more information for testing with Rack::Test.

Related

Dependency Injection causing both Rspec failure and IRB failure

Note: I am a Ruby and programming novice.
I have a class called JourneyLog I am trying to get a method called start to instantiate a new instance of another class, called Journey
class JourneyLog
attr_reader :journey_class
def initialize(journey_class: Journey)
#journey_class = journey_class
#journeys = []
end
def start(station)
journey_class.new(entry_station: station)
end
end
When I go into irbi get the following issue
2.2.3 :001 > require './lib/journeylog'
=> true
2.2.3 :002 > journeylog = JourneyLog.new
NameError: uninitialized constant JourneyLog::Journey
from /Users/BartJudge/Desktop/Makers_2018/oystercard-challenge/lib/journeylog.rb:4:in `initialize'
from (irb):2:in `new'
from (irb):2
from /Users/BartJudge/.rvm/rubies/ruby-2.2.3/bin/irb:15:in `<main>'
2.2.3 :003 >
I also have the following Rspec test
require 'journeylog'
describe JourneyLog do
let(:journey) { double :journey, entry_station: nil, complete?: false, fare: 1}
let(:station) { double :station }
let(:journey_class) { double :journey_class, new: journey }
describe '#start' do
it 'starts a journey' do
expect(journey_class).to receive(:new).with(entry_station: station)
subject.start(station)
end
end
end
I get the following Rspec failure;
1) JourneyLog#start starts a journey
Failure/Error: expect(journey_class).to receive(:new).with(entry_station: station)
(Double :journey_class).new({:entry_station=>#<Double :station>})
expected: 1 time with arguments: ({:entry_station=>#<Double :station>})
received: 0 times
# ./spec/jorneylog_spec.rb:9:in `block (3 levels) in <top (required)>'
I am at a total loss on what the problem is, or where to look for some answers.
I'm assuming I'm not injecting the Journey class properly, but thats as far as I can get myself.
Could someone provide some assistance?
In the journeylog.rb file you need to load the Journey class:
require 'journey' # I guess the Journey class is defined in lib/journey.rb
In the spec file you need to pass journey_class to the JourneyLog constructor:
describe JourneyLog do
subject { described_class.new(journey_class: journey_class) }
# ...

Rspec, capybara getting started issues

I have have started with simple example of Rspec,Capybara. I have come across few issues. This issues are probably because I have experience with cucumber and page_object gem, but here I am using capybara and Site_prism gem.
I have tried:
my_example_spec.rb
require_relative 'Support/spec_helper'
require_relative 'pages/login_page'
describe 'My behaviour' do
it 'should do something'do
#login_page = LoginPage.new
#login_page.load
#login_page.login('autouser','password')
end
end
and login_page.rb
class LoginPage < SitePrism::Page
set_url "/login"
element :username, "input[id='username']"
element :password, "input[id='password']"
element :submit, "input[id='submit']"
def login(username,password)
#login_page.username.set username
#login_page.password.set password
#login_page.submit.click
end
end
Issues are:
When I run my_example_spec.rb it gives error
Testing started at ...
Run options: include {:full_description=>/My\ behaviour\ should\ do\ something/}
NoMethodError: undefined method `username' for nil:NilClass
./pages/login_page.rb:10:in `login'
./my_example_spec.rb:11:in `block (2 levels) in <top (required)>'
-e:1:in `load'
-e:1:in `<main>'
Shouldn't it be on(LoginPage).login (autouser, password). It should navigate to the page and run login method. It is how it works in page_object gem whats the equivalent of site_prism gem
The login method in your LoginPage class should be
def login(username,password)
username.set username
password.set password
submit.click
end
#login_page is not an instance variable of the LoginPage class so it is not accessible inside the class. It's also not necessary inside the class since you're already inside the class.

Rspec validation of method definition - Failure/Error

In Rspec, testing whether an instance is able to call method x.
DockingStation.rb
class DockingStation
def release_bike
end
end
Docking_spec.rb
require_relative '../lib/DockingStation'
describe DockingStation do
before(:each) do
#dockstat = DockingStation.new
end
describe "#DockingStation" do
it "Check release method" do
expect(#dockstat).to respond_to(:release_bike)
end
end
end
Currently getting the following error message:
1) DockingStation#DockingStation Check release method
Failure/Error: expect(#dockstat).to respond_to(:release_bike)
expected #<DockingStation:0x007fa518a6da00> to respond to :release_bike
# ./spec/Docking_spec.rb:10:in `block (3 levels) in <top (required)>'
What I'm expecting is for the object #dockstat instantiated in the Docking_spec.rb to respond to the release_bike method defined in DockingStation.rb, but this is not the case.
require_relative '../DockingStation'

Sinatra, Mongoid, Heroku, MongoHQ: connecting to Mongodb

Trying to get Mongoid up and running with Sinatra on Heroku (MongoHQ). Previous experience with Rails but first time with the stack and Sinatra.
Started with one of the simple examples on the web (app.rb):
require 'rubygems'
require 'sinatra'
require 'mongo'
require 'mongoid'
configure do
Mongoid.load!('mongoid.yml')
Mongoid.configure do |config|
if ENV['MONGOHQ_URL']
conn = Mongo::Connection.from_uri(ENV['MONGOHQ_URL'])
uri = URI.parse(ENV['MONGOHQ_URL'])
# problem happens here
config.master = conn.db(uri.path.gsub(/^\//, ''))
else
config.master = Mongo::Connection.from_uri("mongodb://localhost:27017").db('test')
end
end
end
# Models
class Counter
include Mongoid::Document
field :count, :type => Integer
def self.increment
c = first || new({:count => 0})
c.inc(:count, 1)
c.save
c.count
end
end
# Controllers
get '/' do
"Hello visitor n" + Counter.increment.to_s
end
For reference, mongoid.yml looks like:
development:
sessions:
default:
database: localhost
production:
sessions:
default:
uri: <%= ENV['MONGOHQ_URL'] %>
As per app.rb (# problem happens here), my logs say:
/app/app.rb:15:in `block (2 levels) in <top (required)>': undefined method `master=' for Mongoid::Config:Module (NoMethodError)
from /app/vendor/bundle/ruby/1.9.1/gems/mongoid-3.0.3/lib/mongoid.rb:112:in `configure'
from /app/app.rb:11:in `block in <top (required)>'
from /app/vendor/bundle/ruby/1.9.1/gems/sinatra-1.3.2/lib/sinatra/base.rb:1273:in `configure'
from /app/app.rb:8:in `<top (required)>'
I have also tried variants, including:
config.master = Mongo::Connection.from_uri(ENV['MONGOHQ_URL']).db('appXXXXX')
Mongoid.database = Mongo::Connection.from_uri(ENV['MONGOHQ_URL']).db('appXXXXXXX')
But get the same error:
undefined method `master` for Mongoid::Config:Module (NoMethodError)
or:
undefined method `database=` for Mongoid::Config:Module (NoMethodError)
What am I missing?
Shouldn't be
configure do
Mongoid.load!('mongoid.yml')
end
enough?
That's what the mongid docs are saying. The MONGOHQ_URL environment variable already contains every information to initialize the connection to the db.
So was using Mongoid 3.x ... which:
Doesn't use 10gen driver: uses Moped
Doesn't use config.master
The canonical sample code above which is all over the web works out of the box with Mongoid 2.x so have dropped back to that for the time being.
Thanks!

Ruby: mocking file writes with Flexmock

Apologies if this was asked before.
A simple class:
class AskSO
def initialize( filehandle )
#filehandle = filehandle
end
def library_start
#filehandle << '<plist version="1.0">'
end
end
A simple unit test using Flex mock
require 'rubygems'
require 'flexmock/test_unit'
require 'AskSO'
require 'test/unit'
class AskSOTest < Test::Unit::TestCase
def setup
#filehandle = flexmock( "filehandle", "<<" => "" )
end
def test_library_start
#filehandle.should_receive( "<<" ).with( '<plist version="1.0">' ).once
#AskSOInstance = AskSO.new( #filehandle )
#AskSOInstance.library_start
end
end
When I run it with ruby AskSO-test.rb I get
1) Failure:
test_library_start(AskSOTest)
[/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/validators.rb:40:in `validate'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/expectation.rb:123:in `flexmock_verify'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/expectation.rb:122:in `each'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/expectation.rb:122:in `flexmock_verify'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/expectation_director.rb:64:in `flexmock_verify'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/expectation_director.rb:63:in `each'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/expectation_director.rb:63:in `flexmock_verify'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/core.rb:76:in `flexmock_verify'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/core.rb:75:in `each'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/core.rb:75:in `flexmock_verify'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/core.rb:191:in `flexmock_wrap'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/core.rb:74:in `flexmock_verify'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/mock_container.rb:40:in `flexmock_verify'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/mock_container.rb:39:in `each'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/mock_container.rb:39:in `flexmock_verify'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/mock_container.rb:32:in `flexmock_teardown'
/Library/Ruby/Gems/1.8/gems/flexmock-0.9.0/lib/flexmock/test_unit.rb:26:in `teardown']:
in mock 'filehandle': method '<<("<plist version=\"1.0\">")' called incorrect number of times.
<1> expected but was
<0>.
What am I doing wrong? thanks in advance
Answering my own question in case someone else stumbles on the same problem - changed the mock definition to
def setup
#filehandle = flexmock( "filehandle" )
end
i.e., without the method. For same reason this solves the problem

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