Ruby教程第9章中的RSPEC错误 [英] RSPEC erros on Chapter 9 of Ruby Tutorial
本文介绍了Ruby教程第9章中的RSPEC错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我在Mac osx10.8上使用ruby 1.8.7。我不知道这些错误是什么意思。我目前正处于 ruby on rails教程第9章的结尾。
I'm using ruby 1.8.7 on mac osx10.8. I have no idea what these errors mean. I am currently at the end of chapter 9 of the ruby on rails tutorial. Any help is greatly appreciated!
1) Authentication signin with invalid information
Failure/Error: before { click_button "Sign in" }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/requests/authentication_pages_spec.rb:21
2) Authentication signin with invalid information
Failure/Error: before { click_button "Sign in" }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/requests/authentication_pages_spec.rb:21
3) Authentication signin with invalid information after visiting another page
Failure/Error: before { click_button "Sign in" }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/requests/authentication_pages_spec.rb:21
4) Authentication signin with valid information
Failure/Error: before { sign_in user }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:34
5) Authentication signin with valid information
Failure/Error: before { sign_in user }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:34
6) Authentication signin with valid information
Failure/Error: before { sign_in user }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:34
7) Authentication signin with valid information
Failure/Error: before { sign_in user }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:34
8) Authentication signin with valid information
Failure/Error: before { sign_in user }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:34
9) Authentication signin with valid information
Failure/Error: before { sign_in user }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:34
10) Authentication signin with valid information followed by signout
Failure/Error: before { sign_in user }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:34
11) Authentication authorization for non-signed-in users when attempting to visit a protected page after signing in should render the desired protected page
Failure/Error: click_button "Sign in"
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/requests/authentication_pages_spec.rb:60
12) Authentication authorization for non-signed-in users when attempting to visit a protected page after signing in when signing in again should render the default (profile) page
Failure/Error: click_button "Sign in"
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/requests/authentication_pages_spec.rb:60
13) Authentication authorization for non-signed-in users as wrong user visiting Users#edit page
Failure/Error: before { sign_in user }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:106
14) Authentication authorization for non-signed-in users as wrong user submitting a PUT request to the Users#update action
Failure/Error: before { sign_in user }
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:106
15) User pages index
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:12
16) User pages index
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:12
17) User pages index pagination
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:12
18) User pages index pagination should list each user
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:12
19) User pages signup page with valid information edit page
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:78
20) User pages signup page with valid information edit page
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:78
21) User pages signup page with valid information edit page
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:78
22) User pages signup page with valid information edit with invalid information
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:78
23) User pages signup page with valid information edit with valid information
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:78
24) User pages signup page with valid information edit with valid information
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:78
25) User pages signup page with valid information edit with valid information
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:78
26) User pages signup page with valid information edit with valid information
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:78
27) User pages signup page with valid information edit with valid information
Failure/Error: sign_in user
NoMethodError:
undefined method `[]' for nil:NilClass
# ./app/controllers/sessions_controller.rb:8:in `create'
# (eval):2:in `send'
# (eval):2:in `click_button'
# ./spec/support/utilities.rb:13:in `sign_in'
# ./spec/requests/user_pages_spec.rb:78
我的会话控制oller：
my sessions controller:
class SessionsController < ApplicationController
def new
@title = "Sign in"
end
def create
user = User.find_by_email(params[:session][:email].downcase)
if user && user.authenticate(params[:session][:password])
sign_in user
redirect_back_or user
else
flash.now[:error] = 'Invalid email/password combination'
render 'new'
end
end
def destroy
sign_out
redirect_to root_path
end
end
我的User_pages_spec
My User_pages_spec
require 'spec_helper'
describe "User pages" do
subject { page }
describe "index" do
let(:user) { FactoryGirl.create(:user) }
before(:each) do
sign_in user
visit users_path
end
it { should have_selector('title', :text => 'All users') }
it { should have_selector('h1', :text => 'All users') }
describe "pagination" do
before(:all) { 30.times { FactoryGirl.create(:user) } }
after(:all) { User.delete_all }
it { should have_selector('div.pagination') }
it "should list each user" do
User.paginate(:page => 1).each do |user|
page.should have_selector('li', :text => user.name)
end
end
end
end
describe "signup page" do
before { visit signup_path }
let(:submit) { "Create my account" }
it { should have_selector('h1', :text => 'Sign up') }
it { should have_selector('title', :text => full_title('Sign up')) }
describe "with invalid information" do
it "should not create a user" do
expect { click_button submit }.not_to change(User, :count)
end
describe "after submission" do
before { click_button submit }
it { should have_selector('title', :text => 'Sign up') }
it { should have_content('error') }
end
end
describe "with valid information" do
before do
fill_in "Name", :with => "Example User"
fill_in "Email", :with => "user@example.com"
fill_in "Password", :with => "foobar"
fill_in "Confirmation", :with => "foobar"
end
it "should create a user" do
expect { click_button submit }.to change(User, :count).by(1)
end
describe "after saving the user" do
before { click_button submit }
let(:user) { User.find_by_email('user@example.com') }
it { should have_selector('title', :text => user.name) }
it { should have_selector('div.alert.alert-success', :text => 'Welcome') }
end
describe "edit" do
let(:user) { FactoryGirl.create(:user) }
before do
sign_in user
visit edit_user_path(user)
end
describe "page" do
it { should have_selector('h1', :text => "Update your profile") }
it { should have_selector('title', :text => "Edit user") }
it { should have_link('change', :href => 'http://gravatar.com/emails') }
end
describe "with invalid information" do
before { click_button "Save changes" }
it { should have_content('error') }
end
describe "with valid information" do
let(:new_name) { "New Name" }
let(:new_email) { "new@example.com" }
before do
fill_in "Name", :with => new_name
fill_in "Email", :with => new_email
fill_in "Password", :with => user.password
fill_in "Confirm Password", :with => user.password
click_button "Save changes"
end
it { should have_selector('title', :text => new_name) }
it { should have_selector('div.alert.alert-success') }
it { should have_link('Sign out', :href => signout_path) }
specify { user.reload.name.should == new_name }
specify { user.reload.email.should == new_email }
end
end
end
end
end
我的身份验证页面规范：
My authentication_pages_spec:
require 'spec_helper'
describe "Authentication" do
subject { page }
describe "signin page" do
before { visit signin_path }
it { should have_selector('h1', :text => 'Sign in') }
it { should have_selector('h1','title', :text => 'Sign in') }
end
describe "signin" do
before { visit signin_path }
describe "with invalid information" do
before { click_button "Sign in" }
it { should have_selector('h1', 'title', :text => 'Sign in') }
it { should have_error_message }
describe "after visiting another page" do
before { click_link "Home" }
it { should_not have_error_message }
end
end
describe "with valid information" do
let(:user) { FactoryGirl.create(:user) }
before { sign_in user }
it { should have_selector('title', :text => user.name) }
it { should have_link('Profile', :href => user_path(user)) }
it { should have_link('Sign out', :href => signout_path) }
it { should have_link('Settings', :href => edit_user_path(user)) }
it { should have_link('Users', :href => users_path) }
it { should_not have_link('Sign in', :href => signin_path) }
describe "followed by signout" do
before { click_link "Sign out" }
it { should have_link('Sign in') }
end
end
end
describe "authorization" do
describe "for non-signed-in users" do
let(:user) { FactoryGirl.create(:user) }
describe "when attempting to visit a protected page" do
before do
visit edit_user_path(user)
fill_in "Email", :with => user.email
fill_in "Password", :with => user.password
click_button "Sign in"
end
describe "after signing in" do
it "should render the desired protected page" do
page.should have_selector('title', :text => 'Edit user')
end
describe "when signing in again" do
before do
click_link "Sign out"
click_link "Sign in"
fill_in "Email", :with => user.email
fill_in "Password", :with => user.password
click_button "Sign in"
end
it "should render the default (profile) page" do
page.should have_selector('title', :text => user.name)
end
end
end
end
describe "in the Users controller" do
describe "visiting the edit page" do
before { visit edit_user_path(user) }
it { should have_selector('title', :text => 'Sign in') }
it { should have_selector('div.alert.alert-notice') }
end
describe "submitting to the update action" do
before { put user_path(user) }
specify { response.should redirect_to(signin_path) }
end
describe "visiting the user index" do
before { visit users_path }
it { should have_selector('title', :text => 'Sign in') }
end
end
describe "as wrong user" do
let(:user) { FactoryGirl.create(:user) }
let(:wrong_user) { FactoryGirl.create(:user, :email => "wrong@example.com") }
before { sign_in user }
describe "visiting Users#edit page" do
before { visit edit_user_path(wrong_user) }
it { should_not have_selector('h1', 'title', :text => full_title('Edit user')) }
end
describe "submitting a PUT request to the Users#update action" do
before { put user_path(wrong_user) }
specify { response.should redirect_to(root_url) }
end
end
end
end
end
new，html.erb：
new,html.erb:
<% provide(:title, "Sign in") %>
<h1>Sign in</h1>
<div class="row">
<div class="span6 offset3">
<%= form_tag sessions_path do %>
<%= label_tag :email %>
<%= text_field_tag :email, params[:email] %>
<%= label_tag :password %>
<%= password_field_tag :password %>
<%= submit_tag "Sign in", :class => "btn btn-large btn-primary" %>
<% end %>
<p>New user? <%= link_to "Sign up now!", signup_path %></p>
</div>
</div>
推荐答案
错误是由引起的params [：session] 为 nil ，这反过来是由于您使用 form_tag 导致的您认为 form_for 的值，大概是由于在第9章末尾进行了第一次练习所致。您可以使用 form_tag ，但您必须在 SessionsController 中进行相应的更改，以符合RailsCast＃270（即，将电子邮件地址引用为 params [：email]） 在您的 find_by_email 通话中。）。
The error is resulting from params[:session] being nil which in turn has resulted from your using form_tag instead of form_for in your view, presumably as a result of doing the first exercise at the end of Chapter 9. You can use form_tag, but you have to make the corresponding changes in SessionsController in keeping with RailsCast #270 (i.e. referencing the email address as params[:email] in your find_by_email call.).
这篇关于Ruby教程第9章中的RSPEC错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
