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require 'http_accept_language'
require 'rack/test'
require 'json'
class TestRackApp
def call(env)
request = Rack::Request.new(env)
http_accept_language = env.http_accept_language
result = {
:user_preferred_languages => http_accept_language.user_preferred_languages,
}
if request.params['preferred']
result[:preferred_language_from] = http_accept_language.preferred_language_from(request.params['preferred'])
end
[ 200, {}, [ JSON.generate(result) ]]
end
end
describe "Rack integration" do
include Rack::Test::Methods
def app
Rack::Builder.new do
use HttpAcceptLanguage::Middleware
run TestRackApp.new
end.to_app
end
it "handles reuse of the env instance" do
env = { "HTTP_ACCEPT_LANGUAGE" => "en" }
app = lambda { |env| env }
middleware = HttpAcceptLanguage::Middleware.new(app)
middleware.call(env)
expect(env.http_accept_language.user_preferred_languages).to eq %w{en}
env["HTTP_ACCEPT_LANGUAGE"] = "de"
middleware.call(env)
expect(env.http_accept_language.user_preferred_languages).to eq %w{de}
end
it "decodes the HTTP_ACCEPT_LANGUAGE header" do
request_with_header 'en-us,en-gb;q=0.8,en;q=0.6,es-419'
expect(r['user_preferred_languages']).to eq %w{en-US es-419 en-GB en}
end
it "finds the first available language" do
request_with_header 'en-us,en-gb;q=0.8,en;q=0.6,es-419', :preferred => %w(en en-GB)
expect(r['preferred_language_from']).to eq 'en-GB'
end
def request_with_header(header, params = {})
get "/", params, 'HTTP_ACCEPT_LANGUAGE' => header
end
def r
JSON.parse(last_response.body)
end
end
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