Rails 4.2 中的自定义 HTTP headers Minitest 测试失败
Minitest tests fail with custom HTTP headers in Rails 4.2
我无法使用 minitest 在我的 Rails 4.2 应用程序中成功测试自定义 HTTP 变量——出于某种原因,Rails 似乎根本无法识别它们。
我有以下测试:
require "test_helper"
describe ApplicationController do
tests HomeController
before do
cookies[:locale] = "ru"
request.headers["Accept-Language"] = "zh-cn, en-us"
request.headers["CloudFront-Viewer-Country"] = "FR"
I18n.default_locale = :en
end
it "sets locale from URL params first" do
get :index, locale: "de"
I18n.locale.must_equal :de
end
it "sets locale from a cookie second" do
get :index
I18n.locale.must_equal :ru
end
it "sets locale from Accept-Language header third" do
cookies.delete :locale
get :index
I18n.locale.must_equal :"zh-CN"
end
it "sets locale from CloudFront-Viewer-Country header last" do
cookies.delete :locale
request.headers["Accept-Language"] = nil
get :index
I18n.locale.must_equal :fr
end
end
以及对应的控制器:
class ApplicationController < ActionController::Base
# Prevent CSRF attacks by raising an exception.
# For APIs, you may want to use :null_session instead.
protect_from_forgery with: :exception
before_filter :set_locale
def default_url_options(options = {})
{ locale: I18n.locale }.merge options
end
private
def set_locale
I18n.locale = params[:locale] ||
cookies[:locale] ||
extract_locale_from_accept_language_header ||
set_locale_from_cloudfront_viewer_country ||
I18n.default_locale
unless request.fullpath =~ /^\/(?:[a-z]{2,2})(?:[-|_](?:[A-Z]{2,2}))?/
redirect_to %(#{request.protocol}#{request.host}/#{I18n.locale}#{request.fullpath unless request.fullpath == "/"}), status: :found
end
end
def extract_locale_from_accept_language_header
if request.env["Accept-Language"]
request.env["Accept-Language"].scan(/(?:[a-z]{2,2})(?:[-|_](?:[A-Z]{2,2}))?/i).first
end
end
def set_locale_from_cloudfront_viewer_country
case request.env["CloudFront-Viewer-Country"]
when "FR"
return :fr
else
return I18n.default_locale
end
end
end
最后两个测试失败了,因为 Rails 似乎无法识别我设置的 HTTP header 变量,一切都进入默认语言环境:
Failure:
ApplicationController#test_0004_sets locale from CloudFront-Viewer-Country header last [/Users/aporter/Developer/com/wavetronix/www/test/controllers/application_controller_test.rb:33]
Minitest::Assertion: Expected: :fr
Actual: :en
Failure:
ApplicationController#test_0003_sets locale from Accept-Language header third [/Users/aporter/Developer/com/wavetronix/www/test/controllers/application_controller_test.rb:26]
Minitest::Assertion: Expected: :"zh-CN"
Actual: :en
如果我将 Accept-Language
更改为 HTTP_ACCEPT_LANGUAGE
, 那个 测试就会通过。
根据 Rails documentation,我的测试应该有效。我用谷歌搜索了这个问题,用几种不同的方式寻找答案,但一无所获。 Stack Overflow 上有几个与此类似的问题,但是 none 这些问题的答案或建议解决了我的问题。
我错过了什么?
环境:
- Mac OS X 10.11.1
- Ruby 2.2.2
- Rails 4.2.4
- 迷你测试 5.8.0
Rails 测试指南告诉我们 Setting Headers:
"HTTP headers and CGI variables can be set directly on the @request instance variable:..."
所以你需要这样写:
@request.headers["Accept-Language"] = "zh-cn, en-us"
我认为最好不要在before
方法中设置header,而是直接在测试中设置。因此,每次您只设置此测试所需的 header 。你不需要先设置cookie,然后再删除它。
Rails 通过以下方式为自定义 HTTP header 设置 request.env
变量:
- 将 header 转换为全部大写
- 用下划线替换破折号
- 前置 "HTTP_"
因此您可以在测试中设置 request.headers["Accept-Language"]
,并在控制器中使用 request.env["HTTP_ACCEPT_LANGUAGE"]
访问该值。同样,您在测试中设置 request.headers["CloudFront-Viewer-Country"]
,并在控制器中使用 request.env["HTTP_CLOUDFRONT_VIEWER_COUNTRY"]
访问该值。
我无法使用 minitest 在我的 Rails 4.2 应用程序中成功测试自定义 HTTP 变量——出于某种原因,Rails 似乎根本无法识别它们。
我有以下测试:
require "test_helper"
describe ApplicationController do
tests HomeController
before do
cookies[:locale] = "ru"
request.headers["Accept-Language"] = "zh-cn, en-us"
request.headers["CloudFront-Viewer-Country"] = "FR"
I18n.default_locale = :en
end
it "sets locale from URL params first" do
get :index, locale: "de"
I18n.locale.must_equal :de
end
it "sets locale from a cookie second" do
get :index
I18n.locale.must_equal :ru
end
it "sets locale from Accept-Language header third" do
cookies.delete :locale
get :index
I18n.locale.must_equal :"zh-CN"
end
it "sets locale from CloudFront-Viewer-Country header last" do
cookies.delete :locale
request.headers["Accept-Language"] = nil
get :index
I18n.locale.must_equal :fr
end
end
以及对应的控制器:
class ApplicationController < ActionController::Base
# Prevent CSRF attacks by raising an exception.
# For APIs, you may want to use :null_session instead.
protect_from_forgery with: :exception
before_filter :set_locale
def default_url_options(options = {})
{ locale: I18n.locale }.merge options
end
private
def set_locale
I18n.locale = params[:locale] ||
cookies[:locale] ||
extract_locale_from_accept_language_header ||
set_locale_from_cloudfront_viewer_country ||
I18n.default_locale
unless request.fullpath =~ /^\/(?:[a-z]{2,2})(?:[-|_](?:[A-Z]{2,2}))?/
redirect_to %(#{request.protocol}#{request.host}/#{I18n.locale}#{request.fullpath unless request.fullpath == "/"}), status: :found
end
end
def extract_locale_from_accept_language_header
if request.env["Accept-Language"]
request.env["Accept-Language"].scan(/(?:[a-z]{2,2})(?:[-|_](?:[A-Z]{2,2}))?/i).first
end
end
def set_locale_from_cloudfront_viewer_country
case request.env["CloudFront-Viewer-Country"]
when "FR"
return :fr
else
return I18n.default_locale
end
end
end
最后两个测试失败了,因为 Rails 似乎无法识别我设置的 HTTP header 变量,一切都进入默认语言环境:
Failure:
ApplicationController#test_0004_sets locale from CloudFront-Viewer-Country header last [/Users/aporter/Developer/com/wavetronix/www/test/controllers/application_controller_test.rb:33]
Minitest::Assertion: Expected: :fr
Actual: :en
Failure:
ApplicationController#test_0003_sets locale from Accept-Language header third [/Users/aporter/Developer/com/wavetronix/www/test/controllers/application_controller_test.rb:26]
Minitest::Assertion: Expected: :"zh-CN"
Actual: :en
如果我将 Accept-Language
更改为 HTTP_ACCEPT_LANGUAGE
, 那个 测试就会通过。
根据 Rails documentation,我的测试应该有效。我用谷歌搜索了这个问题,用几种不同的方式寻找答案,但一无所获。 Stack Overflow 上有几个与此类似的问题,但是 none 这些问题的答案或建议解决了我的问题。
我错过了什么?
环境:
- Mac OS X 10.11.1
- Ruby 2.2.2
- Rails 4.2.4
- 迷你测试 5.8.0
Rails 测试指南告诉我们 Setting Headers:
"HTTP headers and CGI variables can be set directly on the @request instance variable:..."
所以你需要这样写:
@request.headers["Accept-Language"] = "zh-cn, en-us"
我认为最好不要在before
方法中设置header,而是直接在测试中设置。因此,每次您只设置此测试所需的 header 。你不需要先设置cookie,然后再删除它。
Rails 通过以下方式为自定义 HTTP header 设置 request.env
变量:
- 将 header 转换为全部大写
- 用下划线替换破折号
- 前置 "HTTP_"
因此您可以在测试中设置 request.headers["Accept-Language"]
,并在控制器中使用 request.env["HTTP_ACCEPT_LANGUAGE"]
访问该值。同样,您在测试中设置 request.headers["CloudFront-Viewer-Country"]
,并在控制器中使用 request.env["HTTP_CLOUDFRONT_VIEWER_COUNTRY"]
访问该值。