Rails 中辅助方法的问题
我有以下辅助方法（app/helpers/application_helper.rb）：
module ApplicationHelper
#Return a title on a per-page basis
def title
base_title = "Ruby on Rails Tutorial Sample App"
if @title.nil?
base_title
else
"#{base_title} | #{@title}"
end
end
end
这是 erb（app/views/layouts/application.html.erb）：
<!DOCTYPE html>
<html>
<head>
<title><%= title %></title>
<%= csrf_meta_tag %>
</head>
<body>
<%= yield %>
</body>
</html>
我运行了 rspec 测试来查看此辅助方法是否有效，并且似乎它找不到标题。
这是错误消息：
Failures:
1) PagesController GET 'home' should be successful
Failure/Error: get 'home'
ActionView::Template::Error:
undefined local variable or method `title' for #<#<Class:0x991ecb4>:0x991315c>
# ./app/views/layouts/application.html.erb:4:in `_app_views_layouts_application_html_erb__248109341_80250010__979063050'
# ./spec/controllers/pages_controller_spec.rb:8:in `block (3 levels) in <top (required)>'
2) PagesController GET 'home' should have the right title
Failure/Error: get 'home'
ActionView::Template::Error:
undefined local variable or method `title' for #<#<Class:0x991ecb4>:0x9d7d094>
# ./app/views/layouts/application.html.erb:4:in `_app_views_layouts_application_html_erb__248109341_82566280__979063050'
# ./spec/controllers/pages_controller_spec.rb:13:in `block (3 levels) in <top (required)>'
任何人都可以告诉我我做错了什么吗？
更新：
我通过执行以下操作包含了帮助程序：
describe PagesController do
include ApplicationHelper
render_views
describe "GET 'home'" do
it "should be successful" do
get 'home'
response.should be_success
end
it "should have the right title" do
get 'home'
response.should have_selector("title",
:content => "Ruby on Rails Tutorial Sample App | Home")
end
end
//and some more
但是我仍然遇到相同的错误
I have the following helper method (app/helpers/application_helper.rb):
module ApplicationHelper
#Return a title on a per-page basis
def title
base_title = "Ruby on Rails Tutorial Sample App"
if @title.nil?
base_title
else
"#{base_title} | #{@title}"
end
end
end
and here's the erb ( app/views/layouts/application.html.erb):
<!DOCTYPE html>
<html>
<head>
<title><%= title %></title>
<%= csrf_meta_tag %>
</head>
<body>
<%= yield %>
</body>
</html>
I ran an rspec test to see if this helper method works and it seems that it can't find title.
Here's the error message:
Failures:
1) PagesController GET 'home' should be successful
Failure/Error: get 'home'
ActionView::Template::Error:
undefined local variable or method `title' for #<#<Class:0x991ecb4>:0x991315c>
# ./app/views/layouts/application.html.erb:4:in `_app_views_layouts_application_html_erb__248109341_80250010__979063050'
# ./spec/controllers/pages_controller_spec.rb:8:in `block (3 levels) in <top (required)>'
2) PagesController GET 'home' should have the right title
Failure/Error: get 'home'
ActionView::Template::Error:
undefined local variable or method `title' for #<#<Class:0x991ecb4>:0x9d7d094>
# ./app/views/layouts/application.html.erb:4:in `_app_views_layouts_application_html_erb__248109341_82566280__979063050'
# ./spec/controllers/pages_controller_spec.rb:13:in `block (3 levels) in <top (required)>'
Can anyone tell me what I did wrong?
UPDATE:
I included the helper by doing the following:
describe PagesController do
include ApplicationHelper
render_views
describe "GET 'home'" do
it "should be successful" do
get 'home'
response.should be_success
end
it "should have the right title" do
get 'home'
response.should have_selector("title",
:content => "Ruby on Rails Tutorial Sample App | Home")
end
end
//and some more
However I am still getting the same error
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评论（1）
在您看来，默认情况下不包括帮助程序。
您可以使用模板对象模拟辅助方法：
然后您可以测试您的助手 分别。
或者，您可以通过简单地执行以下操作将助手包含在视图规范中：
编辑
In your views, the helpers are not included by default.
You can mock out the helper methods using the template object:
You can then test your helpers separately.
Alternatively you can include your helpers in your view spec by simply doing:
EDIT