我想用RSpec测试以下模型:
class Language < ActiveRecord::Base
has_and_belongs_to_many :dvds
validates :title, presence: true, uniqueness: { case_sensitive: false }
end
language_spec.rb
describe Language do
describe 'title validation' do
context 'title is present' do
before(:each) do
@lang = Language.new(title: 'English')
end
it 'is valid with present title' do
expect(@lang).to have_exactly(0).errors_on(:title)
end
end
context 'title is not present' do
before(:each) do
@lang = Language.create
end
it 'has an error on title attribute' do
expect(@lang).to have_exactly(1).errors_on(:title)
end
end
end
end
不幸的是我遇到了测试失败:
故障:
1)语言标题验证标题存在有效 标题 失败/错误:期望(@lang).to have_exactly(0).errors_on(:title) NoMethodError: '
中未定义的方法errors_on' for #<Language:0xaa40e98> # ./spec/models/language_spec.rb:9:in
阻止(4级)2)语言标题验证标题不存在时出错 标题属性 失败/错误:期望(@lang).to have_exactly(1).errors_on(:title) NoMethodError: '
中未定义的方法errors_on' for #<Language id: nil, title: nil, created_at: nil, updated_at: nil> # ./spec/models/language_spec.rb:19:in
阻止(4级)
的Gemfile
source 'https://rubygems.org'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.1.1'
# Use sqlite3 as the database for Active Record
gem 'sqlite3'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.3'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'
# 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
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring', group: :development
# Pagination plugin
gem 'will_paginate', '~> 3.0'
# Testing
group :development, :test do
gem "rspec-rails", "~> 3.0.1"
gem "factory_girl_rails", "~> 4.4.1"
end
group :test do
gem "faker", "~> 1.3.0"
gem "capybara", "~> 2.3.0"
gem "database_cleaner", "~> 1.3.0"
gem "launchy", "~> 2.4.2"
gem "selenium-webdriver", "~> 2.42.0"
end
为什么我会收到undefined method "errors_on"
的任何想法?
答案 0 :(得分:4)
errors_on
匹配器已移至the rspec-collection_matchers gem,因此将其添加到您的Gemfile会修复错误。
如果你想摆脱非核心语法,你可以做到
describe Language do
describe 'title validation' do
context 'title is present' do
before(:each) do
@lang = Language.new(title: 'English')
end
it 'is valid with present title' do
expect(@lang.errors[:title]).to be_empty
end
end
context 'title is not present' do
before(:each) do
@lang = Language.create
end
it 'has an error on title attribute' do
expect(@lang.errors.added?(:title, :blank)).to be_true
end
end
end
end
(have_exactly
and related matchers have also moved to rspec-collection_matchers.)
答案 1 :(得分:-1)
尝试设置类型选项:
describe Language, type: :model do
或使用infer_spec_type_from_file_location!
(请参阅here)
RSpec.configure do |config|
config.infer_spec_type_from_file_location!
end