I am creating a task management application called taskleaf in accordance with the reference book rails5 Quick Learning Exercise Guide, but I have a failure/error error when running Rspec, so I would like to ask you a question.
In the root directory
Users/users/rails/taskleaf
After running $bundle exec rspec spec/system/tasks_spec.rb
, an error statement similar to the following appears:
Supplemental
The file containing ('../config/environment',__dir__)
is spec/rails_helper.rb.
Thank you for your cooperation.
environment
Rails 5.2.4
Ruby 2.6.3
↓ The following is the full error statement.
An error occurred while loading./spec/system/tasks_spec.rb.
Failure/Error: require File.expand_path('../config/environment',__dir__)
NameError:
uninitialized constant BetterErrors
# ./vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/active_support.rb:79:in`block in load_missing_constant'
# ./vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/active_support.rb:8:in`without_bootsnap_cache'
# ./vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/active_support.rb:79:in`resque in load_missing_constant'
# ./vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/active_support.rb:58:in`load_missing_constant'
# ./config/initializers/better_errors.rb:1:in`<main>'
# ./vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:54:in `load'
# ./vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:54:in `load'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/engine.rb:663:in `block in load_config_initializer'
# ./vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.4/lib/active_support/notifications.rb:170:in `instrument'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/engine.rb:662:in `load_config_initializer'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/engine.rb: 620: in `block(2 levels) in<class:Engine>'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/engine.rb: 619: in `each'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/engine.rb: 619:in`block in<class:Engine>'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/initialized.rb:32:in`instance_exec'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/initialized.rb:32:in `run'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/initializeable.rb: 61: in `block in run_initializers'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/initialized.rb:50:in `each'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/initialized.rb:50:in`tsort_each_child'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/initializeable.rb:60:in `run_initializeers'
# ./vendor/bundle/ruby/2.6.0/gems/rails-5.2.4/lib/rails/application.rb:361:in `initialize!'
# ./config/environment.rb:5:in`<top(required)>'
# ./spec/rails_helper.rb:5:in `require'
# ./spec/rails_helper.rb:5:in`<top(required)>'
# ./spec/system/tasks_spec.rb:1:in `require'
# ./spec/system/tasks_spec.rb:1:in`<top(required)>'
# ------------------
# --- Caused by :-
# NameError:
# uninitialized constant BetterErrors
# ./vendor/bundle/ruby/2.6.0/gems/bootsnap-1.4.5/lib/bootsnap/load_path_cache/core_ext/active_support.rb:60:in`block in load_missing_constant'
No examples found.
Finished in 0.00005 seconds (files book 4.78 seconds to load)
0 examples, 0 failures, 1 error occurred outside of examples
tasks_spec.rb
require 'rails_helper'
descriptive 'task management', type: :system do
let(:user_a) {FactoryBot.create(:user,name:'UserA',email:'[email protected]')}
let(:user_b){FactoryBot.create(:user,name:'UserB',email:'[email protected]')}
let!(:task_a) {FactoryBot.create(:task,name:'First Task',user:user_a)}
before do
visit login_path
fill_in 'email address', with:login_user.email
fill_in 'password', with: login_user.password
click_button 'Log in'
e n d
shared_examples_for 'Displays tasks created by user A' do
it {expect(page).to have_content 'First Task'}
e n d
describe 'list feature' do
context 'when user A is logged in' do
let(:login_user) {user_a}
it_behaves_like 'A task created by user A is displayed'
e n d
context 'when user B is logged in' do
let(:login_user) {user_b}
it 'User A created task is not displayed' do
expect(page).to have_no_content 'First Task'
e n d
e n d
e n d
describe 'Advanced View' do
context 'when user A is logged in' do
let(:login_user) {user_a}
before do
visit task_path(task_a)
e n d
it_behaves_like 'A task created by user A is displayed'
e n d
e n d
describe 'New feature' do
let(:login_user) {user_a}
let(:task_name){'Write new test'}#Set as default
before do
visit new_task_path
fill_in 'Name', with:task_name
click_button 'Register'
e n d
context 'when you enter a name on the new screen' do
it 'Registers Successfully' do
expect(page).to have_selector '.alert-success', text: 'Write a new test'
e n d
e n d
context 'when name is not entered on new screen' do
let(:task_name){'}
it's getting 'error' do
within'#error_explanation'do
expect(page).to have_content 'Please enter a name'
e n d
e n d
e n d
e n d
e n d
rails_helper.rb
#This file is copied to spec/when you run 'rails generate rspec:install'
require'spec_helper'
ENV['RAILS_ENV']||='test'
require File.expand_path('../config/environment',__dir__)
# Prevent database truncation if the environment is production
abort("The Rails environment is running in production mode!") if Rails.env.production?
require'rspec/rails'
# Add additional requirements below this line.Rails is not loaded until this point!
# Requirements supporting ruby files with custom matches and macros, etc., in
# spec/support/and its subdirectories.Files matching `spec/**/*_spec.rb`are
# run as spec files by default.This means that files in spec / support that end
# in_spec.rb will both be required and run as specifics, causing the specific to be
# runtime.It is recommended that you do not name files matching this globe to
# end with_spec.rb.You can configure this pattern with the -- pattern
# option on the command line or in ~/.rspec, .rspec or `.rspec-local`.
#
# The following line is provided for convention purpos. It is the downside
# of increasing the boot-up time by auto-requiring all files in the support
# directory.Alternatively, in the individual`*_spec.rb`files, manually
# require only the support files necessary.
#
# Dir [Rails.root.join('spec', 'support', '**', '*.rb')] .each {|f|require f}
# Checks for pending migrations and apps before tests are run.
# If you are not using ActiveRecord, you can remove these lines.
begin
ActiveRecord::Migration.maintain_test_schema!
rescue ActiveRecord::PendingMigrationError=>e
puts e.to_s.strip
exit1
e n d
RSpec.configure do | config |
# Remove this line if you're not using ActiveRecord or ActiveRecord fixes
config.fixure_path="#{:Rails.root}/spec/fixes"
# If you're not using ActiveRecord, or you'd prefer not to run each of your
# examples with a transaction, remove the following line or assign false
# installed of true.
config.use_transactional_fixes=true
# RSpec Rails can automatically mix in different behaviors to your tests
# based on their file location, for example enabling you to call `get` and
# `post`inspecs under`spec/controllers`.
#
# You can disable this behavior by removing the line below, and install
# explicitly tag your specifications with their type, e.g.:
#
# RSpec.describe UsersController, :type=>:controller do
# # ...
# end
#
# The different available types are documented in the features, such as in
# # https://relishapp.com/rspec/rspec-rails/docs
config.infer_spec_type_from_file_location!
# Filter lines from Rails gems in backtraces.
config.filter_rails_from_backtrace!
# arbitrary gems may be filtered via:
# config.filter_gems_from_backtrace("gem name")
e n d
spec_helper.rb
#This file was generated by the `rails generate rspec:install`command.Conventionally, all
# specs live under a `spec` directory, which RSspec addresses to the `$LOAD_PATH`.
# The generated`.rspec`file contains`--require spec_helper`which will cause
# This file to always be loaded, without need to explicitly require it in any
# files.
#
# Given that is always loaded, you are encountered to keep this file as
# light-weight as possible.Requiring heavyweight dependencies from this file
# will add to the boot time of your test suite on EVERY test run, even for an
# individual file that may not need all of that loaded.Instead, consumer making
# separate helper file that require the additional dependencies and performances
# the additional setup, and require it from the spec files that actively need
# it.
#
# See http://rubydoc.info/gems/rspec-core/RSpec/Core/Configuration
require 'capybara/rspec'
RSpec.configure do | config |
config.before(:each, type::system)do
drive_by —Selenium_chrome_headless
e n d
# rspec-expectations config goes here.You can use an alternate
# assertion/expectation library such as wrong or the stdlib/minitest
# assertions if you prefer.
config.expect_with —rspec do | expectations |
# This option will default to `true` in RSpec4. It makes the `description`
# and `failure_message` of custom matches include text for helper methods
# defined using `chain`, e.g.:
# be_bigger_than(2).and_smaller_than(4).description
# # = > "be bigger than 2 and smaller than 4"
# ...rather than:
# # = > "be bigger than 2"
expectations.include_chain_clauses_in_custom_matcher_descriptions=true
e n d
# rspec-mocks config goes here. You can use an alternate test double
# library(such as bogus or mocha) by changing the `mock_with `option here.
config.mock_with —rspec do|mocks|
# Prevents you from mocking or stubbing a method that does not exist on
# real object.This is generally recommended, and will default to
# `true` in RSpec4.
mocks.verify_partial_doubles=true
e n d
# This option will default to `: apply_to_host_groups` in RSpec4(and will)
# have no way to turn it off -- the option exists only for backwards
# compatibility in RSpec 3).It causes shared context metadata to be
# inherit by the metadata hash of host groups and examples, again than
# triggering implicit auto-inclusion in groups with matching metadata.
config.shared_context_metadata_behavior=:apply_to_host_groups
# The settings below are Suggested to provide a good initial experience
# with RSpec, but feel free to customize to your heart's content.
= begin
# This allows you to limit a spec run to individual examples or groups
# You care about by tagging them with `: focus `metadata. When nothing
# is tagged with `:focus`, all examples get run.RSpec also offers
# aliases for `it`, `describe`, and `context` that include`: focus`
# metadata: `fit', `fdescribe` and `fcontext', responsively.
config.filter_run_when_matching:focus
# Allows RSspec to persist some state between runs in order to support
# the `--only-failures` and `--next-failure` CLI options.We recommend
# You configure your source control system to ignore this file.
config.example_status_persistence_file_path="spec/examples.txt"
# Limits the available syntax to the non-monkey patched syntax that is
# recommended.For more details, see:
# - http://rspec.info/blog/2012/06/rspecs-new-expectation-syntax/
# - http://www.teaisaweso.me/blog/2013/05/27/rspecs-new-message-expectation-syntax/
# - http://rspec.info/blog/2014/05/notable-changes-in-rspec-3/#zero-monkey-patching-mode
config.disable_monkey_patching!
# Many RSpec users common either run the entire suite or an individual
# file, and it's useful to allow more verbose output when running an
# individual spec file.
if config.files_to_run.one?
# Use the documentation formatter for detailed output,
# unless a formatter has already been configured
# (e.g. via a command-line flag).
config.default_formatter="doc"
e n d
# Print the 10 slowest examples and example groups at the
# end of the spec run, to help surface which specs are running
# particularly slow.
config.profile_examples=10
# Run specifics in random order to surface order dependencies. If you find an
# order dependency and want to debug it, you can fix the order by provisioning
# The seed, which is printed after each run.
# --seed1234
config.order= —Random
# Seed global randomization in this process using the `--seed` CLI option.
# Setting this allows you to use ` -- seed ` to determinely reproduce
# test failures related to randomization by passing the same ` --seed `value
# as the one that triggered the failure.
Kernel.sland config.seed
=end
e n d
Gemfile
source 'https://rubygems.org'
git_source(:github){|repo|"https://github.com/#{repo}.git"}
ruby '2.6.3'
# Bundle edge Rails installed: gem 'rails', github: 'rails/rails'
gem 'rails', '~>5.2.3'
# Use postgresql as the database for Active Record
gem'sqlite3'
# Use Puma as the app server
gem 'puma', '~>3.11'
# Use SCSS for stylesheets
gem'sass-rails', '~>5.0'
# Use Uglifier as compressor for JavaScript assemblies
gem 'uglifer', '>=1.3.0'
# See https://github.com/rails/execjs#readme for more supported runtime
# gem'mini_racer', platforms::ruby
# Use CoffeeScript for.coffee assemblies and views
gem 'coffee-rails', '~>4.2'
# Turbolinks makes navigating your web application faster.Read more: https://github.com/turbolinks/turbolinks
gem'turbolinks', '~>5'
# Build JSON APIs with ease.Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~>2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~>4.0'
# Use ActiveModel has_secure_password
gem 'bcrypt', '>=3.1.10'
# Use ActiveStorage variant
# gem'mini_magic', '~>4.8'
# Use Capistrano for deployment
# gem 'capistrano-rails', group::development
# Reduce boot times through caching; required in config /boot.rb
gem 'bootsnap', '>=1.1.0', require: false
group:development,:test do
# Call'byebug'anywhere in the code to stop execution and get a debugger console
gem 'byebug', platforms: [:mri,:mingw,:x64_mingw]
gem 'factory_bot_rails', '~> 5.1', '>= 5.1.1'
e n d
group —Development do
# Access an interactive console on exception pages or by calling 'console' anywhere in the code.
gem 'web-console', '>=3.3.0'
gem 'listen', '>=3.0.5', '<3.2'
# Spring speeds up development by keeping your application running in the background.Read more: https://github.com/rails/spring
gem 'spring'
gem's spring-watcher-listen', '~>2.0.0'
gem 'better_errors'
gem 'binding_of_caller'
gem 'pry-rails'
e n d
group —test do
# Adds support for Capybara system testing and selenium driver
gem 'capybara', '>=2.15'
gem'selenium-webdriver'
# Easy installation and use of chromedriver to run system tests with Chrome
gem 'webdrivers', '~>3.0'
gem 'rspec-rails', '~>3.9'
gem 'factory_bot_rails', '~> 5.1', '>= 5.1.1'
e n d
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem'tzinfo-data', platforms: [:mingw,:mswin,:x64_mingw,:jruby]
gem'slim-rails'
gem 'html2lim'
gem'bootstrap'
gem'nokogiri', '~>1.10', '>=1.10.5'
gem 'rails_autolink'
gem 'pry-byebug', group::development
gem 'pry-doc'
__dir__spec.rb
require_relative'../../spec_helper'
describe "Kernel #__dir__" do
it "returns the real name of the directory containing the current-executing file" do
__dir__.should==File.realpath(File.dirname(__FILE__))
e n d
context "when used in event with a given filename" do
it "returns File.dirname(filename)"do
even("__dir__", nil, "foo.rb").should=="."
eval("__dir__", nil, "foo/bar.rb").should=="foo"
e n d
e n d
context "when used in average with top level binding" do
it "returns the real name of the directory containing the current-executing file" do
eval("__dir__", binding).should==File.realpath(File.dirname(__FILE__))
e n d
e n d
e n d
./config/initials/better_errors.rb
appears to be referring to the undefined BetterErrors.
BetterErrors, as described in "of" rel ""nofollow noforeferrer">BetterErrors, must be checked to see if defined in if defined?(BetterErors)
.
better_errors
attempting to load the initializer file of betterErrors
class.Since this is a flow error, why don't you delete and run ./config/initializers/better_errors.rb
?
By default, this file does not appear to be created.Was it added in the book?
https://github.com/BetterErrors/better_errors#set-maximum-variable-size-for-inspector
Also, would you like to check the definition in Gemfile
?
This will take effect in the development
, test
, environment.
group:development,:test do
gem "better_errors"
e n d
This way, it can only be enabled in development
, so it may not be loaded during rspec runtime (test environment).
group:development
gem "better_errors"
e n d
© 2024 OneMinuteCode. All rights reserved.