我的代码功能正常运行,但是需要创建一个涵盖它的RSpec测试。 我的route.rb:
resources :movies do
#member routes for individual ones
get 'find_with_same_director', on: :member
end
# map '/' to be a redirect to '/movies'
root :to => 'movies#index'
movies_controller.rb中的代码:
def find_with_same_director
@movie = Movie.find(params[:id])
@movies, check_info = Movie.find_with_same_director(params[:id])
if check_info
flash[:notice] = "'#{@movie.title}' has no director info"
redirect_to movies_path
end
end
模型movie.rb中的find_with_same_director函数:
def self.find_with_same_director(id)
movie = self.find(id)
if !movie.director.blank?
movies = self.where(:director => movie.director).where.not(:id => movie.id)
return movies, false
else
return [], true
end
end
我正在尝试编写测试,以涵盖单击该函数的“查找同一导演”链接,单击的电影何时可以显示导演,何时不可以显示。到目前为止,我已经在movies_controller_spec.rb中编写了以下每个测试:
describe 'find_with_same_director' do
it 'should call the find_with_same_director model method' do
expect(Movie).to receive(:find_with_same_director).with(params[:id])
get :find_with_same_director, id: movie.id
end
context 'movie has a director' do
let!(:movie1) {FactoryGirl.create(:movie, :director => movie.director)}
it do
get :find_with_same_director, id: movie1.id
expect(response).to redirect_to(movie_path(movie1.id))
end
end
context 'movie has no director' do
movie1 = FactoryGirl.create(:movie, :director => nil)
it "should redirect to root" do
get :find_with_same_director, id: movie1.id
expect(response).to redirect_to(/movies)
end
end
end
我花了很多时间来进行这些测试,当我检查报告时它们正在“发现”这些行时,前两个返回失败。这意味着我写错了。我想修改这些测试以准确表示我的控制器代码在做什么,对此我将非常感谢。如果您不满意,也请提供有关为模型movie.rb文件编写rspec测试代码的建议,也将不胜感激。
我隔离第一个测试时得到的错误:
1) MoviesController find_with_same_director should call the find_with_same_director model method
Failure/Error: expect(Movie).to receive(:find_with_same_director).with(params[:id])
NameError:
undefined local variable or method `params' for #<RSpec::ExampleGroups::MoviesController::FindWithSameDirector:0x000000056b27e0>
隔离第二项测试时得到的错误:
Failures:
1) MoviesController find_with_same_director movie has a director should redirect to "/movies/28"
Failure/Error: expect(response).to redirect_to(movie_path(movie2.id))
Expected response to be a <redirect>, but was <200>
我有点理解为什么会发生错误,但我不知道如何解决这些错误。
答案 0 :(得分:1)
测试通常是独立运行的。因此,让我们一个接一个地看它们:
您的第一个规格如下:
it 'should call the find_with_same_director model method' do
expect(Movie).to receive(:find_with_same_director).with(params[:id])
get :find_with_same_director, id: movie.id
end
请务必注意,在此测试的上下文中,params
和movie
都不存在,因为您确实先定义了它们。您可能想通过先制作电影来解决此问题:
let(:movie) { FactoryGirl.create(:movie) }
it 'should call the find_with_same_director model method' do
expect(Movie).to receive(:find_with_same_director).with(movie.id)
get :find_with_same_director, id: movie.id
end
两个建议:
FactoryGirl
已弃用good reason。它被FactoryBot
取代。请更新它。您的第二个规格
context 'movie has a director' do
let!(:movie1) { FactoryGirl.create(:movie, :director => movie.director) }
it do
get :find_with_same_director, id: movie1.id
expect(response).to redirect_to(movie_path(movie1.id))
end
end
此规范有两个问题。似乎您假设要找到类似的电影并重定向到该电影。但是,您只能创建一部电影,没有其他电影可以重定向到。而且即使它已经存在,控制器中也没有重定向,并且由于您的方法返回了多个电影,因此不清楚要重定向到哪些相似的电影。
您的第三个规格不能正确创建电影。一旦解决,我认为规范会通过。
context 'movie has no director' do
let(:movie) { FactoryGirl.create(:movie, :director => nil) } # <= this creates the movie for the test
it "should redirect to root" do
get :find_with_same_director, id: movie.id
expect(response).to redirect_to(/movies)
end
end
此外,我建议用范围替换find_with_same_director
,并查看Rspec的文档-特别是控制器规范的工作方式以及let
和let!
之间的区别。 / p>