rails チュートリアルのエラー

Question

＜困っていること＞
railsチュートリアル８章の後半で今まで通ってきたテストの全てがエラーになりました。
デバックしようとしましたが
エラーが多すぎてどこから手をつけたらいいかわからず
とても困ってしまった為質問させていただきます。

＜エラー＞
E

Error:
SessionsControllerTest#test_should_get_new:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

Error:
SessionsControllerTest#test_should_get_new:
NoMethodError: undefined method `each' for nil:NilClass

rails test test/controllers/sessions_controller_test.rb:4

E

Error:
StaticPagesControllerTest#test_should_get_help:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

Error:
StaticPagesControllerTest#test_should_get_help:
NoMethodError: undefined method `each' for nil:NilClass

rails test test/controllers/static_pages_controller_test.rb:11

E

Error:
StaticPagesControllerTest#test_should_get_home:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

Error:
StaticPagesControllerTest#test_should_get_home:
NoMethodError: undefined method `each' for nil:NilClass

rails test test/controllers/static_pages_controller_test.rb:5

E

Error:
StaticPagesControllerTest#test_should_get_about:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

Error:
StaticPagesControllerTest#test_should_get_about:
NoMethodError: undefined method `each' for nil:NilClass

rails test test/controllers/static_pages_controller_test.rb:17

E

Error:
StaticPagesControllerTest#test_should_get_contact:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

Error:
StaticPagesControllerTest#test_should_get_contact:
NoMethodError: undefined method `each' for nil:NilClass

rails test test/controllers/static_pages_controller_test.rb:23

E

Error:
UsersLoginTest#test_login_with_invalid_information:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

Error:
UsersLoginTest#test_login_with_invalid_information:
NoMethodError: undefined method `each' for nil:NilClass

rails test test/integration/users_login_test.rb:9

E

Error:
UsersLoginTest#test_login_with_valid_information:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

Error:
UsersLoginTest#test_login_with_valid_information:
NoMethodError: undefined method `each' for nil:NilClass

rails test test/integration/users_login_test.rb:19

E

Error:
UsersSignupTest#test_valid_signup_information:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

Error:
UsersSignupTest#test_valid_signup_information:
NoMethodError: undefined method `each' for nil:NilClass

rails test test/integration/users_signup_test.rb:17

E

Error:
UsersSignupTest#test_invalid_signup_information:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

Error:
UsersSignupTest#test_invalid_signup_information:
NoMethodError: undefined method `each' for nil:NilClass

rails test test/integration/users_signup_test.rb:5

E

Error:
UsersControllerTest#test_should_get_new:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

Error:
UsersControllerTest#test_should_get_new:
NoMethodError: undefined method `each' for nil:NilClass

rails test test/controllers/users_controller_test.rb:5

E

Error:
UserTest#test_password_should_be_present_(nonblank):
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

rails test test/models/user_test.rb:59

E

Error:
UserTest#test_email_should_not_be_too_long:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

rails test test/models/user_test.rb:30

E

Error:
UserTest#test_password_should_have_a_minimum_length:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

rails test test/models/user_test.rb:64

E

Error:
UserTest#test_email_should_be_present:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

rails test test/models/user_test.rb:20

E

Error:
UserTest#test_name_should_not_be_too_long:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

rails test test/models/user_test.rb:25

E

Error:
UserTest#test_email_validation_should_accept_valid_addresses:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

rails test test/models/user_test.rb:35

E

Error:
UserTest#test_name_should_be_present:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

rails test test/models/user_test.rb:15

E

Error:
UserTest#test_should_be_valid:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

rails test test/models/user_test.rb:11

E

Error:
UserTest#test_email_validation_should_reject_invalid_addresses:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

rails test test/models/user_test.rb:44

E

Error:
UserTest#test_email_addresses_should_be_unique:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

rails test test/models/user_test.rb:53

E

Error:
SiteLayoutTest#test_layout_links:
ActiveRecord::Fixture::FormatError: fixture key is not a hash: /home/ubuntu/environment/sample_app/test/fixtures/users.yml, keys: ["name", "email", "password_digest"]

Error:
SiteLayoutTest#test_layout_links:
NoMethodError: undefined method `each' for nil:NilClass

rails test test/integration/site_layout_test.rb:5

＜環境＞
cloud９で開発

＜実施したこと＞
・全てのテストの内容を以下のgit内のと一致していることを確認しました。
https://github.com/yasslab/sample_apps/tree/master/6_0_0/ch08
・railsチュートリアル８章で書いたコードを一度コメントアウトしても同じエラーが出ました。

エラーがたくさん出てしまってとても驚いてしまい内容に不足点があるかもしれません…

＜追記＞
user.rb⇩

class User < ApplicationRecord
before_save { self.email = email.downcase }
validates :name, presence: true, length: { maximum: 50 }
VALID_EMAIL_REGEX = /\A[\w+-.]+@[a-z\d-.]+.[a-z]+\z/i
validates :email, presence: true, length: { maximum: 255 },
format: { with: VALID_EMAIL_REGEX },
uniqueness: true
has_secure_password
validates :password, presence: true, length: { minimum: 6 }

#渡された文字列のハッシュ値を返す
def User.digest(string)
cost = ActiveModel::SecurePassword.min_cost ? BCrypt::Engine::MIN_COST :
BCrypt::Engine.cost
BCrypt::Password.create(string, cost: cost)
end
end

  michael:
  name: Michael Example
  email: [e-mail]
  password_digest: <%= User.digest('password') %>

Comments

[Yasumichi]

app/models/user.rb を提示してください。

# 与えられた文字列のハッシュ値を返す

あたりが怪しい気がします。

[pome00000]

お忙しい中ご回答ありがとうございます！！
以下になります

class User < ApplicationRecord
before_save { self.email = email.downcase }
validates :name, presence: true, length: { maximum: 50 }
VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
validates :email, presence: true, length: { maximum: 255 },
format: { with: VALID_EMAIL_REGEX },
uniqueness: true
has_secure_password
validates :password, presence: true, length: { minimum: 6 }

# 渡された文字列のハッシュ値を返す
def User.digest(string)
cost = ActiveModel::SecurePassword.min_cost ? BCrypt::Engine::MIN_COST :
BCrypt::Engine.cost
BCrypt::Password.create(string, cost: cost)
end
end

[Yasumichi]

出来れば、質問に追記でお願いします。

[Yasumichi]

test/fixtures/users.yml の方が怪しいかもしれません。

https://stackoverflow.com/questions/45588340/resolving-active-record-fixture-format-error

[Yasumichi]

test/fixtures/users.yml の内容を以下のように質問に追記してください。

```yml
ここに内容を入れる
```

上記により、インデントを含めて回答者に伝わります。

[Yasumichi]

rails g task fixtures check_format

を実行するとフォーマットのチェックをしてくれるみたいです。

【追記】
rails fixtures:check_format

を先ほどのコマンドの後に実行してください。

Answer 1

はずしているかもしれませんが。

michael:
  name: Michael Example
  email: [e-mail]
  password_digest: <%= User.digest('password') %>

のように michael: とそれ以外の行のインデントを変えてください。（michael: のインデントを解除してください。）

なお、 ActiveRecord::Fixture::FormatError: fixture key is not a hash をキーワードに検索したところ、以下のページが見つかりました。

ruby on rails - Resolving Active record fixture format error - Stack Overflow

おそらく、 ~/environment/sample_app/test/fixtures/users.yml のフォーマットに問題があります。上記ページについた回答によると

rails g task fixtures check_format

を実行すると lib/tasks/fixtures.rake ができるらしいです。

rails fixtures:check_format

Comments

[pome00000]

ありがとうございます！！！！
解決しました！！とても丁寧にご指導いただけて
本当にありがたかったです！！

[Yasumichi]

解決してよかったです。
yml というか、yaml はインデントが意味を持つので注意が必要です。