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rails--rails/actionview/test/template/csrf_helper_test.rb
Genadi Samokovarov a58db74c4f Don't expect defined protect_against_forgery? in {token,csrf_meta}_tag
The `#csrf_meta_tags` and `#token_tag` Action View helper methods are
expecting the class in which are included to explicitly define the
method `#protect_against_forgery?` or else they will fail with
`NoMethodError`.

This is a problem if you want to use Action View outside of Rails
applications. For example, in #34788 I used the `#button_to` helper
inside of the error pages templates that have a custom
`ActionView::Base` subclass, which did not defined
`#protect_against_forgery?` and trying to call the button failed.

I had to dig inside of Action View to find-out what's was going on. I
think we should either set a default method implementation in the
helpers or check for the method definition, but don't explicitly require
the presence of `#protect_against_forgery?` in every `ActionViews::Base`
subclass as the errors are hard to figure out.
2018-12-27 11:33:54 +02:00

46 lines
1.1 KiB
Ruby

# frozen_string_literal: true
require "abstract_unit"
class CsrfHelperTest < ActiveSupport::TestCase
cattr_accessor :request_forgery, default: false
include ActionView::Helpers::CsrfHelper
include ActionView::Helpers::TagHelper
include Rails::Dom::Testing::Assertions::DomAssertions
def test_csrf_meta_tags_without_request_forgery_protection
assert_dom_equal "", csrf_meta_tags
end
def test_csrf_meta_tags_with_request_forgery_protection
self.request_forgery = true
assert_dom_equal <<~DOM.chomp, csrf_meta_tags
<meta name="csrf-param" content="form_token" />
<meta name="csrf-token" content="secret" />
DOM
ensure
self.request_forgery = false
end
def test_csrf_meta_tags_without_protect_against_forgery_method
self.class.undef_method(:protect_against_forgery?)
assert_dom_equal "", csrf_meta_tags
ensure
self.class.define_method(:protect_against_forgery?) { request_forgery }
end
def protect_against_forgery?
request_forgery
end
def form_authenticity_token(*args)
"secret"
end
def request_forgery_protection_token
"form_token"
end
end