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-rw-r--r--actionpack/CHANGELOG.md6
-rw-r--r--actionpack/lib/action_controller/metal/rack_delegation.rb4
-rw-r--r--actionpack/lib/action_controller/metal/rendering.rb4
-rw-r--r--actionpack/lib/action_controller/metal/request_forgery_protection.rb8
-rw-r--r--actionpack/lib/action_dispatch/http/response.rb13
-rw-r--r--actionpack/lib/action_dispatch/middleware/cookies.rb2
-rw-r--r--actionpack/lib/action_dispatch/routing/mapper.rb73
-rw-r--r--actionpack/lib/action_pack/gem_version.rb15
-rw-r--r--actionpack/lib/action_pack/version.rb11
-rw-r--r--actionpack/test/controller/caching_test.rb4
-rw-r--r--actionpack/test/controller/new_base/render_body_test.rb29
-rw-r--r--actionpack/test/controller/request_forgery_protection_test.rb16
-rw-r--r--actionpack/test/dispatch/response_test.rb8
-rw-r--r--actionpack/test/dispatch/routing_test.rb238
14 files changed, 347 insertions, 84 deletions
diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index 66cef08b1b..c23577de9b 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,3 +1,9 @@
+* Make logging of CSRF failures optional (but on by default) with the
+ `log_warning_on_csrf_failure` configuration setting in
+ `ActionController::RequestForgeryProtection`.
+
+ *John Barton*
+
* Fix URL generation in controller tests with request-dependent
`default_url_options` methods.
diff --git a/actionpack/lib/action_controller/metal/rack_delegation.rb b/actionpack/lib/action_controller/metal/rack_delegation.rb
index e1bee9e60c..bdf6e88699 100644
--- a/actionpack/lib/action_controller/metal/rack_delegation.rb
+++ b/actionpack/lib/action_controller/metal/rack_delegation.rb
@@ -5,8 +5,8 @@ module ActionController
module RackDelegation
extend ActiveSupport::Concern
- delegate :headers, :status=, :location=, :content_type=, :no_content_type=,
- :status, :location, :content_type, :no_content_type, :to => "@_response"
+ delegate :headers, :status=, :location=, :content_type=,
+ :status, :location, :content_type, :to => "@_response"
def dispatch(action, request)
set_response!(request)
diff --git a/actionpack/lib/action_controller/metal/rendering.rb b/actionpack/lib/action_controller/metal/rendering.rb
index 3c4ef596c7..93e7d6954c 100644
--- a/actionpack/lib/action_controller/metal/rendering.rb
+++ b/actionpack/lib/action_controller/metal/rendering.rb
@@ -45,9 +45,7 @@ module ActionController
def _process_format(format, options = {})
super
- if options[:body]
- self.headers.delete "Content-Type"
- elsif options[:plain]
+ if options[:plain]
self.content_type = Mime::TEXT
else
self.content_type ||= format.to_s
diff --git a/actionpack/lib/action_controller/metal/request_forgery_protection.rb b/actionpack/lib/action_controller/metal/request_forgery_protection.rb
index c88074d4c6..e3b1f5ae7c 100644
--- a/actionpack/lib/action_controller/metal/request_forgery_protection.rb
+++ b/actionpack/lib/action_controller/metal/request_forgery_protection.rb
@@ -68,6 +68,10 @@ module ActionController #:nodoc:
config_accessor :allow_forgery_protection
self.allow_forgery_protection = true if allow_forgery_protection.nil?
+ # Controls whether a CSRF failure logs a warning. On by default.
+ config_accessor :log_warning_on_csrf_failure
+ self.log_warning_on_csrf_failure = true
+
helper_method :form_authenticity_token
helper_method :protect_against_forgery?
end
@@ -193,7 +197,9 @@ module ActionController #:nodoc:
mark_for_same_origin_verification!
if !verified_request?
- logger.warn "Can't verify CSRF token authenticity" if logger
+ if logger && log_warning_on_csrf_failure
+ logger.warn "Can't verify CSRF token authenticity"
+ end
handle_unverified_request
end
end
diff --git a/actionpack/lib/action_dispatch/http/response.rb b/actionpack/lib/action_dispatch/http/response.rb
index f14ca1ea44..2c6bcf7b7b 100644
--- a/actionpack/lib/action_dispatch/http/response.rb
+++ b/actionpack/lib/action_dispatch/http/response.rb
@@ -63,8 +63,6 @@ module ActionDispatch # :nodoc:
# content you're giving them, so we need to send that along.
attr_accessor :charset
- attr_accessor :no_content_type # :nodoc:
-
CONTENT_TYPE = "Content-Type".freeze
SET_COOKIE = "Set-Cookie".freeze
LOCATION = "Location".freeze
@@ -305,17 +303,8 @@ module ActionDispatch # :nodoc:
!@sending_file && @charset != false
end
- def remove_content_type!
- headers.delete CONTENT_TYPE
- end
-
def rack_response(status, header)
- if no_content_type
- remove_content_type!
- else
- assign_default_content_type_and_charset!(header)
- end
-
+ assign_default_content_type_and_charset!(header)
handle_conditional_get!
header[SET_COOKIE] = header[SET_COOKIE].join("\n") if header[SET_COOKIE].respond_to?(:join)
diff --git a/actionpack/lib/action_dispatch/middleware/cookies.rb b/actionpack/lib/action_dispatch/middleware/cookies.rb
index 18e64704f6..8b05cd6e11 100644
--- a/actionpack/lib/action_dispatch/middleware/cookies.rb
+++ b/actionpack/lib/action_dispatch/middleware/cookies.rb
@@ -74,7 +74,7 @@ module ActionDispatch
#
# domain: nil # Does not sets cookie domain. (default)
# domain: :all # Allow the cookie for the top most level
- # domain and subdomains.
+ # # domain and subdomains.
#
# * <tt>:expires</tt> - The time at which this cookie expires, as a \Time object.
# * <tt>:secure</tt> - Whether this cookie is only transmitted to HTTPS servers.
diff --git a/actionpack/lib/action_dispatch/routing/mapper.rb b/actionpack/lib/action_dispatch/routing/mapper.rb
index 0b762aa9a4..357829e59f 100644
--- a/actionpack/lib/action_dispatch/routing/mapper.rb
+++ b/actionpack/lib/action_dispatch/routing/mapper.rb
@@ -708,7 +708,8 @@ module ActionDispatch
options[:constraints] ||= {}
unless shallow?
- options[:shallow_path] = options[:path] if args.any?
+ options[:shallow_path] ||= options[:path] if options.key?(:path)
+ options[:shallow_prefix] ||= options[:as] if options.key?(:as)
end
if options[:constraints].is_a?(Hash)
@@ -792,9 +793,16 @@ module ActionDispatch
# end
def namespace(path, options = {})
path = path.to_s
- options = { :path => path, :as => path, :module => path,
- :shallow_path => path, :shallow_prefix => path }.merge!(options)
- scope(options) { yield }
+
+ defaults = {
+ module: path,
+ path: options.fetch(:path, path),
+ as: options.fetch(:as, path),
+ shallow_path: options.fetch(:path, path),
+ shallow_prefix: options.fetch(:as, path)
+ }
+
+ scope(defaults.merge!(options)) { yield }
end
# === Parameter Restriction
@@ -1323,8 +1331,10 @@ module ActionDispatch
end
with_scope_level(:member) do
- scope(parent_resource.member_scope) do
- yield
+ if shallow?
+ shallow_scope(parent_resource.member_scope) { yield }
+ else
+ scope(parent_resource.member_scope) { yield }
end
end
end
@@ -1347,16 +1357,8 @@ module ActionDispatch
end
with_scope_level(:nested) do
- if shallow?
- with_exclusive_scope do
- if @scope[:shallow_path].blank?
- scope(parent_resource.nested_scope, nested_options) { yield }
- else
- scope(@scope[:shallow_path], :as => @scope[:shallow_prefix]) do
- scope(parent_resource.nested_scope, nested_options) { yield }
- end
- end
- end
+ if shallow? && nesting_depth > 1
+ shallow_scope(parent_resource.nested_scope, nested_options) { yield }
else
scope(parent_resource.nested_scope, nested_options) { yield }
end
@@ -1558,21 +1560,23 @@ module ActionDispatch
end
end
- def with_scope_level(kind, resource = parent_resource)
+ def with_scope_level(kind)
old, @scope[:scope_level] = @scope[:scope_level], kind
- old_resource, @scope[:scope_level_resource] = @scope[:scope_level_resource], resource
yield
ensure
@scope[:scope_level] = old
- @scope[:scope_level_resource] = old_resource
end
def resource_scope(kind, resource) #:nodoc:
- with_scope_level(kind, resource) do
- scope(parent_resource.resource_scope) do
- yield
- end
+ old_resource, @scope[:scope_level_resource] = @scope[:scope_level_resource], resource
+ @nesting.push(resource)
+
+ with_scope_level(kind) do
+ scope(parent_resource.resource_scope) { yield }
end
+ ensure
+ @nesting.pop
+ @scope[:scope_level_resource] = old_resource
end
def nested_options #:nodoc:
@@ -1584,6 +1588,10 @@ module ActionDispatch
options
end
+ def nesting_depth #:nodoc:
+ @nesting.size
+ end
+
def param_constraint? #:nodoc:
@scope[:constraints] && @scope[:constraints][parent_resource.param].is_a?(Regexp)
end
@@ -1596,18 +1604,20 @@ module ActionDispatch
flag && resource_method_scope? && CANONICAL_ACTIONS.include?(action.to_s)
end
- def shallow_scoping? #:nodoc:
- shallow? && @scope[:scope_level] == :member
+ def shallow_scope(path, options = {}) #:nodoc:
+ old_name_prefix, old_path = @scope[:as], @scope[:path]
+ @scope[:as], @scope[:path] = @scope[:shallow_prefix], @scope[:shallow_path]
+
+ scope(path, options) { yield }
+ ensure
+ @scope[:as], @scope[:path] = old_name_prefix, old_path
end
def path_for_action(action, path) #:nodoc:
- prefix = shallow_scoping? ?
- "#{@scope[:shallow_path]}/#{parent_resource.shallow_scope}" : @scope[:path]
-
if canonical_action?(action, path.blank?)
- prefix.to_s
+ @scope[:path].to_s
else
- "#{prefix}/#{action_path(action, path)}"
+ "#{@scope[:path]}/#{action_path(action, path)}"
end
end
@@ -1645,7 +1655,7 @@ module ActionDispatch
when :new
[prefix, :new, name_prefix, member_name]
when :member
- [prefix, shallow_scoping? ? @scope[:shallow_prefix] : name_prefix, member_name]
+ [prefix, name_prefix, member_name]
when :root
[name_prefix, collection_name, prefix]
else
@@ -1786,6 +1796,7 @@ module ActionDispatch
@set = set
@scope = { :path_names => @set.resources_path_names }
@concerns = {}
+ @nesting = []
end
include Base
diff --git a/actionpack/lib/action_pack/gem_version.rb b/actionpack/lib/action_pack/gem_version.rb
new file mode 100644
index 0000000000..beaf35d3da
--- /dev/null
+++ b/actionpack/lib/action_pack/gem_version.rb
@@ -0,0 +1,15 @@
+module ActionPack
+ # Returns the version of the currently loaded ActionPack as a <tt>Gem::Version</tt>
+ def self.gem_version
+ Gem::Version.new VERSION::STRING
+ end
+
+ module VERSION
+ MAJOR = 4
+ MINOR = 2
+ TINY = 0
+ PRE = "alpha"
+
+ STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
+ end
+end
diff --git a/actionpack/lib/action_pack/version.rb b/actionpack/lib/action_pack/version.rb
index 75fb0d9532..7088cd2760 100644
--- a/actionpack/lib/action_pack/version.rb
+++ b/actionpack/lib/action_pack/version.rb
@@ -1,11 +1,8 @@
+require_relative 'gem_version'
+
module ActionPack
- # Returns the version of the currently loaded ActionPack as a Gem::Version
+ # Returns the version of the currently loaded ActionPack as a <tt>Gem::Version</tt>
def self.version
- Gem::Version.new "4.2.0.alpha"
- end
-
- module VERSION #:nodoc:
- MAJOR, MINOR, TINY, PRE = ActionPack.version.segments
- STRING = ActionPack.version.to_s
+ gem_version
end
end
diff --git a/actionpack/test/controller/caching_test.rb b/actionpack/test/controller/caching_test.rb
index 57b45b8f7b..591d0eccc3 100644
--- a/actionpack/test/controller/caching_test.rb
+++ b/actionpack/test/controller/caching_test.rb
@@ -243,8 +243,8 @@ CACHED
end
private
- def template_digest(name, format)
- ActionView::Digestor.digest(name, format, @controller.lookup_context)
+ def template_digest(name, format, variant = nil)
+ ActionView::Digestor.digest(name: name, format: format, variant: variant, finder: @controller.lookup_context)
end
end
diff --git a/actionpack/test/controller/new_base/render_body_test.rb b/actionpack/test/controller/new_base/render_body_test.rb
index a7e4f87bd9..fad848349a 100644
--- a/actionpack/test/controller/new_base/render_body_test.rb
+++ b/actionpack/test/controller/new_base/render_body_test.rb
@@ -65,6 +65,11 @@ module RenderBody
render body: "hello world", layout: "greetings"
end
+ def with_custom_content_type
+ response.headers['Content-Type'] = 'application/json'
+ render body: '["troll","face"]'
+ end
+
def with_ivar_in_layout
@ivar = "hello world"
render body: "hello world", layout: "ivar"
@@ -141,6 +146,13 @@ module RenderBody
assert_status 200
end
+ test "specified content type should not be removed" do
+ get "/render_body/with_layout/with_custom_content_type"
+
+ assert_equal %w{ troll face }, JSON.parse(response.body)
+ assert_equal 'application/json', response.headers['Content-Type']
+ end
+
test "rendering body with layout: false" do
get "/render_body/with_layout/with_layout_false"
@@ -154,22 +166,5 @@ module RenderBody
assert_body "hello world"
assert_status 200
end
-
- test "rendering from minimal controller returns response with no content type" do
- get "/render_body/minimal/index"
-
- assert_header_no_content_type
- end
-
- test "rendering from normal controller returns response with no content type" do
- get "/render_body/simple/index"
-
- assert_header_no_content_type
- end
-
- def assert_header_no_content_type
- assert_not response.headers.has_key?("Content-Type"),
- %(Expect response not to have Content-Type header, got "#{response.headers["Content-Type"]}")
- end
end
end
diff --git a/actionpack/test/controller/request_forgery_protection_test.rb b/actionpack/test/controller/request_forgery_protection_test.rb
index 1f5fc06410..99229b3baf 100644
--- a/actionpack/test/controller/request_forgery_protection_test.rb
+++ b/actionpack/test/controller/request_forgery_protection_test.rb
@@ -289,6 +289,22 @@ module RequestForgeryProtectionTests
end
end
+ def test_should_not_warn_if_csrf_logging_disabled
+ old_logger = ActionController::Base.logger
+ logger = ActiveSupport::LogSubscriber::TestHelper::MockLogger.new
+ ActionController::Base.logger = logger
+ ActionController::Base.log_warning_on_csrf_failure = false
+
+ begin
+ assert_blocked { post :index }
+
+ assert_equal 0, logger.logged(:warn).size
+ ensure
+ ActionController::Base.logger = old_logger
+ ActionController::Base.log_warning_on_csrf_failure = true
+ end
+ end
+
def test_should_only_allow_same_origin_js_get_with_xhr_header
assert_cross_origin_blocked { get :same_origin_js }
assert_cross_origin_blocked { get :same_origin_js, format: 'js' }
diff --git a/actionpack/test/dispatch/response_test.rb b/actionpack/test/dispatch/response_test.rb
index 1360ede3f8..959a3bc5cd 100644
--- a/actionpack/test/dispatch/response_test.rb
+++ b/actionpack/test/dispatch/response_test.rb
@@ -235,14 +235,6 @@ class ResponseTest < ActiveSupport::TestCase
assert_equal @response.body, body.each.to_a.join
end
end
-
- test "does not add default content-type if Content-Type is none" do
- resp = ActionDispatch::Response.new.tap { |response|
- response.no_content_type = true
- }
-
- assert_not resp.headers.has_key?('Content-Type')
- end
end
class ResponseIntegrationTest < ActionDispatch::IntegrationTest
diff --git a/actionpack/test/dispatch/routing_test.rb b/actionpack/test/dispatch/routing_test.rb
index 1fa2cc6cf2..a47050adce 100644
--- a/actionpack/test/dispatch/routing_test.rb
+++ b/actionpack/test/dispatch/routing_test.rb
@@ -1031,6 +1031,136 @@ class TestRoutingMapper < ActionDispatch::IntegrationTest
assert_equal 'users/home#index', @response.body
end
+ def test_namespaced_shallow_routes_with_module_option
+ draw do
+ namespace :foo, module: 'bar' do
+ resources :posts, only: [:index, :show] do
+ resources :comments, only: [:index, :show], shallow: true
+ end
+ end
+ end
+
+ get '/foo/posts'
+ assert_equal '/foo/posts', foo_posts_path
+ assert_equal 'bar/posts#index', @response.body
+
+ get '/foo/posts/1'
+ assert_equal '/foo/posts/1', foo_post_path('1')
+ assert_equal 'bar/posts#show', @response.body
+
+ get '/foo/posts/1/comments'
+ assert_equal '/foo/posts/1/comments', foo_post_comments_path('1')
+ assert_equal 'bar/comments#index', @response.body
+
+ get '/foo/comments/2'
+ assert_equal '/foo/comments/2', foo_comment_path('2')
+ assert_equal 'bar/comments#show', @response.body
+ end
+
+ def test_namespaced_shallow_routes_with_path_option
+ draw do
+ namespace :foo, path: 'bar' do
+ resources :posts, only: [:index, :show] do
+ resources :comments, only: [:index, :show], shallow: true
+ end
+ end
+ end
+
+ get '/bar/posts'
+ assert_equal '/bar/posts', foo_posts_path
+ assert_equal 'foo/posts#index', @response.body
+
+ get '/bar/posts/1'
+ assert_equal '/bar/posts/1', foo_post_path('1')
+ assert_equal 'foo/posts#show', @response.body
+
+ get '/bar/posts/1/comments'
+ assert_equal '/bar/posts/1/comments', foo_post_comments_path('1')
+ assert_equal 'foo/comments#index', @response.body
+
+ get '/bar/comments/2'
+ assert_equal '/bar/comments/2', foo_comment_path('2')
+ assert_equal 'foo/comments#show', @response.body
+ end
+
+ def test_namespaced_shallow_routes_with_as_option
+ draw do
+ namespace :foo, as: 'bar' do
+ resources :posts, only: [:index, :show] do
+ resources :comments, only: [:index, :show], shallow: true
+ end
+ end
+ end
+
+ get '/foo/posts'
+ assert_equal '/foo/posts', bar_posts_path
+ assert_equal 'foo/posts#index', @response.body
+
+ get '/foo/posts/1'
+ assert_equal '/foo/posts/1', bar_post_path('1')
+ assert_equal 'foo/posts#show', @response.body
+
+ get '/foo/posts/1/comments'
+ assert_equal '/foo/posts/1/comments', bar_post_comments_path('1')
+ assert_equal 'foo/comments#index', @response.body
+
+ get '/foo/comments/2'
+ assert_equal '/foo/comments/2', bar_comment_path('2')
+ assert_equal 'foo/comments#show', @response.body
+ end
+
+ def test_namespaced_shallow_routes_with_shallow_path_option
+ draw do
+ namespace :foo, shallow_path: 'bar' do
+ resources :posts, only: [:index, :show] do
+ resources :comments, only: [:index, :show], shallow: true
+ end
+ end
+ end
+
+ get '/foo/posts'
+ assert_equal '/foo/posts', foo_posts_path
+ assert_equal 'foo/posts#index', @response.body
+
+ get '/foo/posts/1'
+ assert_equal '/foo/posts/1', foo_post_path('1')
+ assert_equal 'foo/posts#show', @response.body
+
+ get '/foo/posts/1/comments'
+ assert_equal '/foo/posts/1/comments', foo_post_comments_path('1')
+ assert_equal 'foo/comments#index', @response.body
+
+ get '/bar/comments/2'
+ assert_equal '/bar/comments/2', foo_comment_path('2')
+ assert_equal 'foo/comments#show', @response.body
+ end
+
+ def test_namespaced_shallow_routes_with_shallow_prefix_option
+ draw do
+ namespace :foo, shallow_prefix: 'bar' do
+ resources :posts, only: [:index, :show] do
+ resources :comments, only: [:index, :show], shallow: true
+ end
+ end
+ end
+
+ get '/foo/posts'
+ assert_equal '/foo/posts', foo_posts_path
+ assert_equal 'foo/posts#index', @response.body
+
+ get '/foo/posts/1'
+ assert_equal '/foo/posts/1', foo_post_path('1')
+ assert_equal 'foo/posts#show', @response.body
+
+ get '/foo/posts/1/comments'
+ assert_equal '/foo/posts/1/comments', foo_post_comments_path('1')
+ assert_equal 'foo/comments#index', @response.body
+
+ get '/foo/comments/2'
+ assert_equal '/foo/comments/2', bar_comment_path('2')
+ assert_equal 'foo/comments#show', @response.body
+ end
+
def test_namespace_containing_numbers
draw do
namespace :v2 do
@@ -3033,6 +3163,114 @@ class TestRoutingMapper < ActionDispatch::IntegrationTest
assert_equal '/admin/posts/1/comments', admin_post_comments_path('1')
end
+ def test_shallow_path_and_prefix_are_not_added_to_non_shallow_routes
+ draw do
+ scope shallow_path: 'projects', shallow_prefix: 'project' do
+ resources :projects do
+ resources :files, controller: 'project_files', shallow: true
+ end
+ end
+ end
+
+ get '/projects'
+ assert_equal 'projects#index', @response.body
+ assert_equal '/projects', projects_path
+
+ get '/projects/new'
+ assert_equal 'projects#new', @response.body
+ assert_equal '/projects/new', new_project_path
+
+ post '/projects'
+ assert_equal 'projects#create', @response.body
+
+ get '/projects/1'
+ assert_equal 'projects#show', @response.body
+ assert_equal '/projects/1', project_path('1')
+
+ get '/projects/1/edit'
+ assert_equal 'projects#edit', @response.body
+ assert_equal '/projects/1/edit', edit_project_path('1')
+
+ patch '/projects/1'
+ assert_equal 'projects#update', @response.body
+
+ delete '/projects/1'
+ assert_equal 'projects#destroy', @response.body
+
+ get '/projects/1/files'
+ assert_equal 'project_files#index', @response.body
+ assert_equal '/projects/1/files', project_files_path('1')
+
+ get '/projects/1/files/new'
+ assert_equal 'project_files#new', @response.body
+ assert_equal '/projects/1/files/new', new_project_file_path('1')
+
+ post '/projects/1/files'
+ assert_equal 'project_files#create', @response.body
+
+ get '/projects/files/2'
+ assert_equal 'project_files#show', @response.body
+ assert_equal '/projects/files/2', project_file_path('2')
+
+ get '/projects/files/2/edit'
+ assert_equal 'project_files#edit', @response.body
+ assert_equal '/projects/files/2/edit', edit_project_file_path('2')
+
+ patch '/projects/files/2'
+ assert_equal 'project_files#update', @response.body
+
+ delete '/projects/files/2'
+ assert_equal 'project_files#destroy', @response.body
+ end
+
+ def test_scope_path_is_copied_to_shallow_path
+ draw do
+ scope path: 'foo' do
+ resources :posts do
+ resources :comments, shallow: true
+ end
+ end
+ end
+
+ assert_equal '/foo/comments/1', comment_path('1')
+ end
+
+ def test_scope_as_is_copied_to_shallow_prefix
+ draw do
+ scope as: 'foo' do
+ resources :posts do
+ resources :comments, shallow: true
+ end
+ end
+ end
+
+ assert_equal '/comments/1', foo_comment_path('1')
+ end
+
+ def test_scope_shallow_prefix_is_not_overwritten_by_as
+ draw do
+ scope as: 'foo', shallow_prefix: 'bar' do
+ resources :posts do
+ resources :comments, shallow: true
+ end
+ end
+ end
+
+ assert_equal '/comments/1', bar_comment_path('1')
+ end
+
+ def test_scope_shallow_path_is_not_overwritten_by_path
+ draw do
+ scope path: 'foo', shallow_path: 'bar' do
+ resources :posts do
+ resources :comments, shallow: true
+ end
+ end
+ end
+
+ assert_equal '/bar/comments/1', comment_path('1')
+ end
+
private
def draw(&block)