我在运行任何帖子时出错了创建与控制器规格中缺少的控制器变量相关的rspec。
我已经研究了至少一天这个问题，大多数问题都与无关的宝石有关，或者没有解决问题。
我看到很多这样的错误：
失败/错误：post：create，{user：@user_attributes}，格式:: json RuntimeError： @controller是nil：确保在测试的设置方法中设置它。 ＃./spec/controllers/api/v0/users_controller_spec.rb:27:in块中的“块（3级）”
供参考，这是我的Gemfile：
source 'https://rubygems.org'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2'
# Use postgresql as the database for Active Record
gem 'pg'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.1.0'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'
# Use Unicorn as the app server
gem 'unicorn'
# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development
gem 'activerecord-postgis-adapter'
gem 'rgeo'
gem 'rb-readline'
gem "devise"
gem "responders"
group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug'
# Access an IRB console on exception pages or by using <%= console %> in views
gem 'web-console', '~> 2.0'
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring'
gem "rspec-rails", "~> 3.3"
end
group :test do
#gem "shoulda-matchers"
gem "factory_girl_rails"
gem 'ffaker'
end
这是我的spec/controllers/api/v0/users_controller_spec.rb：
require 'spec_helper'
describe Api::V0::UsersController do
before(:each) { request.headers['Accept'] = "application/market.v0" }
describe "GET #show" do
before(:each) do
@user = FactoryGirl.create :user
get :show, id: @user.id, format: :json
end
it "returns the information about a reporter on a hash" do
user_response = JSON.parse(response.body, symbolize_names: true)
expect(user_response[:email]).to eql @user.email
end
#it { should respond_with 200 }
it { expect(response).to have_http_status(200) }
end
end
describe "POST #create" do
context "when is successfully created" do
before(:each) do
@user_attributes = FactoryGirl.attributes_for :user
post :create, { user: @user_attributes }, format: :json
end
it "renders the json representation for the user record just created" do
user_response = JSON.parse(response.body, symbolize_names: true)
expect(user_response[:email]).to eql @user_attributes[:email]
end
it { expect(response).to have_http_status(201) }
end
context "when is not created" do
before(:each) do
#notice I'm not including the email
@invalid_user_attributes = { password: "12345678",
password_confirmation: "12345678" }
post :create, { user: @invalid_user_attributes }, format: :json
end
it "renders an errors json" do
user_response = JSON.parse(response.body, symbolize_names: true)
expect(user_response).to have_key(:errors)
end
it "renders the json errors on why the user could not be created" do
user_response = JSON.parse(response.body, symbolize_names: true)
expect(user_response[:errors][:email]).to include "can't be blank"
end
it { expect(response).to have_http_status(422) }
end
end
这是我的spec_helper.rb：
# This file is copied to spec/ when you run 'rails generate rspec:install'
ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
# Requires supporting ruby files with custom matchers 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 specs, causing the specs to be
# run twice. It is recommended that you do not name files matching this glob to
# end with _spec.rb. You can configure this pattern with with the --pattern
# option on the command line or in ~/.rspec, .rspec or `.rspec-local`.
Dir[Rails.root.join("spec/support/**/*.rb")].each { |f| require f }
# Checks for pending migrations before tests are run.
# If you are not using ActiveRecord, you can remove this line.
ActiveRecord::Migration.maintain_test_schema!
RSpec.configure do |config|
# ## Mock Framework
#
# If you prefer to use mocha, flexmock or RR, uncomment the appropriate line:
#
# config.mock_with :mocha
# config.mock_with :flexmock
# config.mock_with :rr
# Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
config.fixture_path = "#{::Rails.root}/spec/fixtures"
# If you're not using ActiveRecord, or you'd prefer not to run each of your
# examples within a transaction, remove the following line or assign false
# instead of true.
config.use_transactional_fixtures = true
# If true, the base class of anonymous controllers will be inferred
# automatically. This will be the default behavior in future versions of
# rspec-rails.
config.infer_base_class_for_anonymous_controllers = false
# Run specs in random order to surface order dependencies. If you find an
# order dependency and want to debug it, you can fix the order by providing
# the seed, which is printed after each run.
# --seed 1234
config.order = "random"
# RSpec Rails can automatically mix in different behaviours to your tests
# based on their file location, for example enabling you to call `get` and
# `post` in specs under `spec/controllers`.
#
# You can disable this behaviour by removing the line below, and instead
# explictly tag your specs with their type, e.g.:
#
# describe UsersController, :type => :controller do
# # ...
# end
#
# The different available types are documented in the features, such as in
# https://relishapp.com/rspec/rspec-rails/v/3-0/docs
config.infer_spec_type_from_file_location!
end
以下是app/controllers/application_controller.rb：
class ApplicationController < ActionController::Base
# Prevent CSRF attacks by raising an exception.
# For APIs, you may want to use :null_session instead.
protect_from_forgery with: :exception
end
最后我的app/controllers/api/v0/users_controller.rb：
require 'application_controller.rb'
class Api::V0::UsersController < ApplicationController
respond_to :json
def show
#respond_to do |format|
# format.json { render request.format.to_sym => User.find(params[:id]) }
#end
respond_with User.find(params[:id])
end
def create
user = User.new(user_params)
if user.save
render json: user, status: 201, location: [:api, user]
else
render json: { errors: user.errors }, status: 422
end
end
private
def user_params
params.require(:user).permit(:email, :password, :password_confirmation)
end
end
答案 0 :(得分：1)
在您的代码中（参见您发布的规范中的第19行）您所拥有的位置：
describe Api::V0::UsersController do
before(:each) { request.headers['Accept'] = "application/market.v0" }
describe "GET #show" do
before(:each) do
@user = FactoryGirl.create :user
get :show, id: @user.id, format: :json
end
it "returns the information about a reporter on a hash" do
user_response = JSON.parse(response.body, symbolize_names: true)
expect(user_response[:email]).to eql @user.email
end
#it { should respond_with 200 }
it { expect(response).to have_http_status(200) }
end
end
这里你只需要一个结束。最后一个＆＃34;它不需要结束＆＃34;声明。它没有do块，所以不应该有它的结束。在最后两行（结尾）中，第一行结束你的描述＆＃34; GET＃show＆＃34;块。因此，第二个额外结束关闭第一个描述块：
describe Api::V0::UsersController do
您的描述Api :: V0 :: UserController块已关闭，因此您在第27行发生无控制器错误。一旦您的Api :: V0 :: UserController块关闭，当下一个描述块执行时，控制器为零。