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Lookout-Rack
Lookout-Rack provides easy interaction with Rack¹ from Lookout². It provides
you with a session connected to your Rack application through which you can
make requests, check responses, follow redirects and set, inspect, and clear
cookies.
¹ See http://rack.rubyforge.org/
² See http://disu.se/software/lookout-3.0/
§ Installation
Install Lookout-Rack with
% gem install lookout-rack
§ Usage
Include the following code in your ‹Rakefile› (provided that you’re using
Lookout-Rake¹):
require 'lookout-rack-3.0'
Lookout::Rake::Tasks::Test.new do |t|
t.requires << 'lookout-rack-3.0'
end
¹ See http://disu.se/software/lookout-rake-3.0/
Then set up a ‹fixtures/config.ru› file that Lookout-Rack
will use for loading your Rack app.
load 'path/to/app.rb'
use Rack::Lint
run Path::To::App
This file, if it exists, will be loaded during the first call to #session.
If it doesn’t exist, ‹config.ru› will be used instead.
You can now test your app:
Expectations do
expect 200 do
session.get('/').response.status
end
end
The #session method returns an object that lets you #get, #post, #put, and
#delete resources from the Rack app. You call these method with a URI¹
that you want to access/modify together with any parameters that you want
to pass and any Rack environment that you want to use (which isn’t very
common). For example, let’s get ‹/pizzas/› with olives on them:
expect 200 do
session.get('/pizzas/', 'olives' => '1').response.status
end
¹ Abbreviation for Uniform Resource Identifier
The #response method on #session returns a mock Rack response object that
can be queried for results. Similarly, there’s a #request method that lets
you inspect the request that was made.
Lookout-Rack also deals with cookies. Assuming that ‹/cookies/set/› will
set any cookies that we pass it and that ‹/cookies/show/› will simply do
nothing relevant, the following expectation will pass:
expect 'value' => '1' do
session.
get('/cookies/set/', 'value' => '1').
get('/cookies/show/').request.cookies
end
Sometimes you may want to set cookies yourself before making a request.
You then use the #cookie method, which takes a String of ‹KEY=VALUE› pairs
separated by newlines, commas, and/or semicolons and sets those cookies in
the session:
expect 'value' => '1', 'other' => '2' do
session.
cookie("value=1\n\nother=2").
get('/cookies/show/').request.cookies
end
You may also want to clear all cookies in your session using #clear:
expect({}) do
session.
get('/cookies/set', 'value' => '1').
clear.
get('/cookies/show').request.cookies
end
Finally, to test redirects, call the #redirect! method on the session
object, assuming that ‹/redirected/› redirects to another location:
expect result.redirect? do
session.get('/redirected/').response
end
expect result.not.redirect? do
session.get('/redirected/').redirect!.response
end
That’s basically all there’s to it. You can check the {API documentation}¹
for more information.
¹ See http://disu.se/software/lookout-rack-1.0/api/Lookout/Rack/
§ Financing
Currently, most of my time is spent at my day job and in my rather busy
private life. Please motivate me to spend time on this piece of software
by donating some of your money to this project. Yeah, I realize that
requesting money to develop software is a bit, well, capitalistic of me.
But please realize that I live in a capitalistic society and I need money
to have other people give me the things that I need to continue living
under the rules of said society. So, if you feel that this piece of
software has helped you out enough to warrant a reward, please PayPal a
donation to now@disu.se¹. Thanks! Your support won’t go unnoticed!
¹ Send a donation:
https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=now@disu.se&item_name=Lookout-Rack
§ Reporting Bugs
Please report any bugs that you encounter to the {issue tracker}¹.
¹ See https://github.com/now/lookout-rack/issues
§ Authors
Nikolai Weibull wrote the code, the tests, the documentation, and this
README.
§ Licensing
Lookout-Rack is free software: you may redistribute it and/or modify it
under the terms of the {GNU Lesser General Public License, version 3}¹ or
later², as published by the {Free Software Foundation}³.
¹ See http://disu.se/licenses/lgpl-3.0/
² See http://gnu.org/licenses/
³ See http://fsf.org/
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