I'm testing to make sure that a created user is assigned to my instance variable #user. I understand what get means, but I'm not sure what to write for the test. I'm returning with an argument error for a bad URI or URL. What's wrong with my test and how do I fix it?
it "checks #user variable assignment for creation" do
p = FactoryGirl.create(:user)
get :users
# I'm confused on what this line above means/does. What does the hash :users refer
#to
assigns[:user].should == [p]
end
The expected URI object or string error refers to get :users and the error is as follows
Failure/Error get :users
ArgumentError:
bad argument: (expected URI object or URI string)
I guess that what you want is
it "checks #user variable assignment for creation" do
p = FactoryGirl.create(:user)
get :show, id: p.id
assigns(:user).should == p
end
The line you were not sure about checks that content of the assigned variable (#user) in the show view of the user p, is equal to the p user you just created more information there
what action are you trying to test? usually, for creation, you need to test that the controller's "create" action creates a user and assigns an #user variable
I would test it this way:
describe 'POST create' do
it 'creates a user' do
params = {:user => {:name => 'xxx', :lastname => 'yyy'}}
User.should_receive(:create).with(params)
post :create
end
it 'assigns the user to an #user instance variable' do
user = mock(:user)
User.stub!(:create => user)
post :create
assigns(:user).should == user
end
end
notice that I stub/mock all user methods, since you are testing a controller you don't have to really create the user, you only test that the controller calls the desired method, the user creation is tested inside the User model spec
also, I made 2 tests (you should test only 1 thing on each it block if possible, first it test that the controller creates a user, then I test that the controller assigns the variable
I'm assuming your controller is something like this:
controller...
def create
#user = User.create(params[:user])
end
which is TOO simple, I guess you have more code and you should test that code too (validations, redirects, flash messages, etc)
Related
I have a controller create action that creates a new blog post, and runs an additional method if the post saves successfully.
I have a separate factory girl file with the params for the post I want to make. FactoryGirl.create calls the ruby create method, not the create action in my controller.
How can I call the create action from the controller in my RSpec? And how would I send it the params in my factory girl factories.rb file?
posts_controller.rb
def create
#post = Post.new(params[:post])
if #post.save
#post.my_special_method
redirect_to root_path
else
redirect_to new_path
end
end
spec/requests/post_pages_spec.rb
it "should successfully run my special method" do
#post = FactoryGirl.create(:post)
#post.user.different_models.count.should == 1
end
post.rb
def my_special_method
user = self.user
special_post = Post.where("group_id IN (?) AND user_id IN (?)", 1, user.id)
if special_post.count == 10
DifferentModel.create(user_id: user.id, foo_id: foobar.id)
end
end
end
Request specs are integration tests, using something like Capybara to visit pages as a user might and perform actions. You wouldn't test a create action from a request spec at all. You'd visit the new item path, fill in the form, hit the Submit button, and then confirm that an object was created. Take a look at the Railscast on request specs for a great example.
If you want to test the create action, use a controller spec. Incorporating FactoryGirl, that would look like this:
it "creates a post" do
post_attributes = FactoryGirl.attributes_for(:post)
post :create, post: post_attributes
response.should redirect_to(root_path)
Post.last.some_attribute.should == post_attributes[:some_attribute]
# more lines like above, or just remove `:id` from
# `Post.last.attributes` and compare the hashes.
end
it "displays new on create failure" do
post :create, post: { some_attribute: "some value that doesn't save" }
response.should redirect_to(new_post_path)
flash[:error].should include("some error message")
end
These are the only tests you really need related to creation. In your specific example, I'd add a third test (again, controller test) to ensure that the appropriate DifferentModel record is created.
I have a test that looks like this:
test "should get create" do
current_user = FactoryGirl.build(:user, email: 'not_saved_email#example.com')
assert_difference('Inquiry.count') do
post :create, FactoryGirl.build(:inquiry)
end
assert_not_nil assigns(:inquiry)
assert_response :redirect
end
That's testing this part of the controller:
def create
#inquiry = Inquiry.new(params[:inquiry])
#inquiry.user_id = current_user.id
if #inquiry.save
flash[:success] = "Inquiry Saved"
redirect_to root_path
else
render 'new'
end
end
and the factory:
FactoryGirl.define do
factory :inquiry do
product_id 2
description 'I have a question about....'
end
end
but I keep getting errors in my tests:
1) Error:
test_should_get_create(InquiriesControllerTest):
RuntimeError: Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id
What am I doing wrong? I need to set the current_user, and I believe I am in the test, but obviously, that's not working.
You didn't create current_user. It was initialized only in test block.
There are two differents ways to do it:
First, use devise test helpers. Something like that
let(:curr_user) { FactoryGirl.create(:user, ...attrs...) }
sign_in curr_user
devise doc
Second, you can stub current_user method in your controllers for test env
controller.stub(current_user: FactroryGirl.create(:user, ...attrs...))
And you should use FactoryGirld.create(...) instead of FactoryGirl.build(...), because you factory objects have to be persisted.(be saved in db and has id attribute not nil)
There are several things which come to mind:
FactoryGirl.build(:user, ...) returns unsaved instance of a user. I'd suggest to use Factory.create instead of it, because with unsaved instance there's no id and there's no way for (usually session based) current_user getter to load it from database. If you're using Devise, you should "sign in" user after creating it. This includes saving record in DB and putting reference to it into session. See devise wiki
Also, passing ActiveRecord object to create action like this looks weird to me:
post :create, FactoryGirl.build(:inquiry)
Maybe there's some rails magic in play which recognizes your intent, but I'd suggest doing it explicitly:
post :create, :inquiry => FactoryGirl.build(:inquiry).attributes
or better yet, decouple it from factory (DRY and aesthetic principles in test code differ from application code):
post :create, :inquiry => {product_id: '2', description: 'I have a question about....'}
This references product with id = 2, unless your DB doesn't have FK reference constraints, product instance may need to be present in DB before action fires.
I am trying to create a non ActiveRecord model in my Ruby on Rails application according to http://railscasts.com/episodes/121-non-active-record-model. I am facing hard time testing it though.
I have following class in my app/models/sms.rb file.
class Sms
def initialize
# Do stuff here
end
def deliver
# Do some stuff here
end
end
I am unable to mock deliver method on my Sms class.
it 'should do someting' do
#sms = mock(Sms)
#sms.should_receive(:deliver).and_return(true)
post :create, :user_id => #user.id
flash[:notice].should == "SMS sent successfully."
response.should redirect_to(some_url)
end
In my controller code I do have a line that says #sms.deliver. Yet above gives following error:
Failure/Error: #sms.should_receive(:deliver).and_return(true)
(Mock Sms).deliver(any args)
expected: 1 time
received: 0 times
Any pointers?
Variables beginning with # are instance variables. The #sms your controller refers to is not the same #sms as your spec has defined.
Try changing
#sms = mock(Sms)
#sms.should_receive(:deliver).and_return(true)
to
Sms.any_instance.should_receive(:deliver).and_return(true)
If your version of RSpec doesn't have the any_instance method, you'll need to stub :new on the class:
#sms = mock(Sms)
Sms.stub(:new).and_return(#sms)
#sms.should_receive(:deliver).and_return(true)
I'm trying to spec the controller code:
# ClustersController
def create
# create new cluster
#cluster.user = current_user
# save code
end
I am using Rails 3 / RSpec 2 and I'm fairly new to the TDD flow. I basically want to make sure that the user attribute is assigned during the create action.
To begin with i don't think you should create, update an save the object. You can pass the user to the create method, like this:
Cluster.create(:user => current_user)
And to test this you can do:
describe ClusterController do
describe "POST create" do
it "creates a new cluster" do
lamda do
post :create
end.should change(Cluster, :count).by(1)
end
it "set the current user as the new cluster's user" do
user = mock()
Cluster.should_receive(:create).with(:user => user)
post :create
assign(:cluster).user.should == user
end
end
end
I think that will do.
Hope that help.
I have a Rails controller where I accidentally defined the 'edit' method inside the 'create' method.
My Controller with the error:
class UsersController < ApplicationController
...
def create
#user = User.new(params[:user])
...
def edit
#user = User.find(params[:id])
#title = "Edit user"
#check = "BORK" # something I added for testing the rendered output
end
end
end
An example test;
it "should have the right title" do
get :edit, :id => #user
response.should have_selector('title', :content => 'Edit user')
end
So when I run the tests (I use rspec) and output the response.body, the User edit.html.erb template is rendered correctly; all the instance variables are visible. So all the tests pass.
Visiting the 'edit' URL correctly shows an error; the template uses #user instance variable, and it's not set correctly. Of course correcting the controller fixes the error.
I don't understand why the tests pass at all and why, in the test, all the instance variable values are visible?
My instinct suggests this is a scope problem? Something about #user being an instance variable, and that in the tests it's set within the scope of the test, but in my controller it's within the scope of the inner 'edit' method? But how does the test even find the 'edit' method? In what scope does that inner 'edit' method exist?
You should realise that the def construct is as much executable code as an if statement. It's not invalid to put it inside another method, but it won't be run until the outer method is called:
>> class Foo
>> def foo
>> def bar
>> end
>> end
>> end
=> nil
>> Foo.instance_methods(false)
=> ["foo"]
>> Foo.new.foo
=> nil
>> Foo.instance_methods(false)
=> ["foo", "bar"]
The reason this was erroring in your browser was because Rails reloads all (most) of your classes each request. So, even if you had visited the create action - which would cause the edit method to be defined - the following request would have unloaded it again.
However in the test environment, if an earlier test had called the create action then that would have defined the edit action for future tests. You would see a different result if your tests were run in a different order (which in itself makes it a bad idea to rely on this).
Generally of course this isn't what you want at all, so just clear it up and move along :)