Failure/Error:before { visit user_path(user) } - ruby-on-rails

Question

I am currently at chapter 7 of michael hartl's tutorial and i keep getting failing test suites.
When i run bundle exec rspec spec/requests/user_pages_spec.rb i get the following failures. Can anyone shed some light on this??
Failures:
1) User pages profile page
Failure/Error: before { visit user_path(user) }
ActionView::Template::Error:
undefined method `digest' for #<Class:0x007fadc6123b28>
# ./app/helpers/sessions_helper.rb:19:in `current_user'
# ./app/helpers/sessions_helper.rb:11:in `signed_in?'
# ./app/views/layouts/_header.html.erb:9:in `_app_views_layouts__header_html_erb__873134851071575186_70192169771720'
# ./app/views/layouts/application.html.erb:12:in `_app_views_layouts_application_html_erb__3681928384030501247_70192144555120'
# ./spec/requests/user_pages_spec.rb:9:in `block (3 levels) in <top (required)>'
2) User pages profile page
Failure/Error: before { visit user_path(user) }
ActionView::Template::Error:
undefined method `digest' for #<Class:0x007fadc6123b28>
# ./app/helpers/sessions_helper.rb:19:in `current_user'
# ./app/helpers/sessions_helper.rb:11:in `signed_in?'
# ./app/views/layouts/_header.html.erb:9:in `_app_views_layouts__header_html_erb__873134851071575186_70192169771720'
# ./app/views/layouts/application.html.erb:12:in `_app_views_layouts_application_html_erb__3681928384030501247_70192144555120'
# ./spec/requests/user_pages_spec.rb:9:in `block (3 levels) in <top (required)>'
3) User pages signup page
Failure/Error: before { visit signup_path }
ActionView::Template::Error:
First argument in form cannot contain nil or be empty
# ./app/views/users/new.html.erb:6:in `_app_views_users_new_html_erb___2899461793876151964_70192172593300'
# ./spec/requests/user_pages_spec.rb:16:in `block (3 levels) in <top (required)>'
4) User pages signup page
Failure/Error: before { visit signup_path }
ActionView::Template::Error:
First argument in form cannot contain nil or be empty
# ./app/views/users/new.html.erb:6:in `_app_views_users_new_html_erb___2899461793876151964_70192172593300'
# ./spec/requests/user_pages_spec.rb:16:in `block (3 levels) in <top (required)>'
The following is my user_spec.rb:
require 'spec_helper'
describe User do
before do
#user = User.new(name: "Example User", email: "user#example.com",
password: "foobar", password_confirmation: "foobar")
end
subject { #user }
it { should respond_to(:name) }
it { should respond_to(:email) }
it { should respond_to(:password_digest) }
it { should respond_to(:password) }
it { should respond_to(:password_confirmation) }
it { should respond_to(:authenticate) }
it { should be_valid }
describe "when name is not present" do
before { #user.name = " " }
it { should_not be_valid }
end
describe "when email is not present" do
before { #user.email = " " }
it { should_not be_valid }
end
describe "when name is too long" do
before { #user.name = "a" * 51 }
it { should_not be_valid }
end
describe "when email format is invalid" do
it "should be invalid" do
addresses = %w[user#foo,com user_at_foo.org example.user#foo.
foo#bar_baz.com foo#bar+baz.com]
addresses.each do |invalid_address|
#user.email = invalid_address
expect(#user).not_to be_valid
end
end
end
describe "when email format is valid" do
it "should be valid" do
addresses = %w[user#foo.COM A_US-ER#f.b.org frst.lst#foo.jp a+b#baz.cn]
addresses.each do |valid_address|
#user.email = valid_address
expect(#user).to be_valid
end
end
end
describe "when email address is already taken" do
before do
user_with_same_email = #user.dup
user_with_same_email.save
end
it { should_not be_valid }
end
describe "when email address is already taken" do
before do
user_with_same_email = #user.dup
user_with_same_email.email = #user.email.upcase
user_with_same_email.save
end
it { should_not be_valid }
end
describe "when password is not present" do
before do
#user = User.new(name: "Example User", email: "user#example.com",
password: " ", password_confirmation: " ")
end
it { should_not be_valid }
end
describe "when password doesn't match confirmation" do
before { #user.password_confirmation = "mismatch" }
it { should_not be_valid }
end
describe "with a password that's too short" do
before { #user.password = #user.password_confirmation = "a" * 5 }
it { should be_invalid }
end
describe "return value of authenticate method" do
before { #user.save }
let(:found_user) { User.find_by(email: #user.email) }
describe "with valid password" do
it { should eq found_user.authenticate(#user.password) }
end
describe "with invalid password" do
let(:user_for_invalid_password) { found_user.authenticate("invalid") }
it { should_not eq user_for_invalid_password }
specify { expect(user_for_invalid_password).to be_false }
end
end
end
And this is my user_pages_spec.rb:
require 'spec_helper'
describe "User pages" do
subject { page }
describe "profile page" do
let(:user) { FactoryGirl.create(:user) }
before { visit user_path(user) }
it { should have_content(user.name) }
it { should have_title(user.name) }
end
describe "signup page" do
before { visit signup_path }
it { should have_content('Sign up') }
it { should have_title(full_title('Sign up')) }
end
end
The following is users_helper.rb:
module UsersHelper
# Returns the Gravatar (http://gravatar.com/) for the given user.
def gravatar_for(user)
gravatar_id = Digest::MD5::hexdigest(user.email.downcase)
gravatar_url = "https://secure.gravatar.com/avatar/#{gravatar_id}"
image_tag(gravatar_url, alt: user.name, class: "gravatar")
end
end
Can anyone shed some light on this?

Answer 1

While you mentioned that you are currently on Chapter 7 of the book, the tests failures that are occurring appear in Chapter 8. Perhaps you should check whether the state of your code base matches where you currently are in the book.
For example, the reference to User.digest in app/helpers/sessions_helper.rb.
Failures:
1) User pages profile page
Failure/Error: before { visit user_path(user) }
ActionView::Template::Error:
undefined method digest' for #<Class:0x007fadc6123b28>
# ./app/helpers/sessions_helper.rb:19:incurrent_user'
# ./app/helpers/sessions_helper.rb:11:in signed_in?'
# ./app/views/layouts/_header.html.erb:9:in_app_views_layouts__header_html_erb__873134851071575186_70192169771720'
# ./app/views/layouts/application.html.erb:12:in _app_views_layouts_application_html_erb__3681928384030501247_70192144555120'
# ./spec/requests/user_pages_spec.rb:9:inblock (3 levels) in '