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# Boots a single Capybara::Server for a Rack application that delegates to another, singleton Rack
# application that can be configured for each spec. Also configures Capybara to use that server.
require 'sinatra/base'
module AppRunner
class << self
attr_accessor :app, :app_host
end
def self.boot
app_container = lambda { |env| AppRunner.app.call(env) }
server = Capybara::Server.new(app_container)
server.boot
self.app_host = "http://127.0.0.1:#{server.port}"
end
def self.reset
self.app = lambda do |env|
[200, { 'Content-Type' => 'html', 'Content-Length' => 0 }, []]
end
end
def run_application(app)
AppRunner.app = app
end
def driver_for_app(&body)
app = Class.new(ExampleApp, &body)
run_application app
build_driver
end
def driver_for_html(html)
run_application_for_html html
build_driver
end
def run_application_for_html(html)
run_application lambda { |env|
[200, { 'Content-Type' => 'text/html', 'Content-Length' => html.size.to_s }, [html]]
}
end
private
def build_driver
Capybara::Webkit::Driver.new(AppRunner.app, :browser => $webkit_browser)
end
def self.included(example_group)
example_group.class_eval do
before { AppRunner.reset }
around do |example|
Capybara.run_server = false
Capybara.app_host = AppRunner.app_host
begin
example.run
ensure
Capybara.run_server = true
Capybara.app_host = nil
end
end
end
end
end
class ExampleApp < Sinatra::Base
# Sinatra fixes invalid responses that would break QWebPage, so this middleware breaks them again
# for testing purposes.
class ResponseInvalidator
def initialize(app)
@app = app
end
def call(env)
response = @app.call(env)
if response.to_a[1]['X-Response-Invalid']
[404, {}, []]
else
response
end
end
end
use ResponseInvalidator
def invalid_response
[200, { 'X-Response-Invalid' => 'TRUE' }, []]
end
end
AppRunner.boot
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