RSpec functional test is redirecting to the wrong place - testing

Question

I need some help guys, trying to make this test to pass but with no luck.
describe 'PUT posts/:id' do
describe 'with valid attributes' do
let(:mock_post) { mock_model('Post', title: 'hey! iam a mock!', description: 'a sexy model', location: 'everywhere') }
login_user
it 'should update the object and redirect to the post' do
Post.stub!(:find).with(mock_post.id).and_return(mock_post)
Post.any_instance.should_receive(:update_attributes).with({"these" => "params"}).and_return(true)
response.should redirect_to post_path(mock_post)
put :update, id: mock_post.id, post: { these: 'params' }
end
it 'should have a current_user' do
subject.current_user.should_not be_nil
end
end
For now, I have something like the above test and getting the following error:
1) PostsController PUT posts/:id with valid attributes should update the object and redirect to the post
Failure/Error: response.should redirect_to post_path(mock_post)
Expected response to be a <:redirect>, but was <200>
# ./spec/controllers/posts_controller_spec.rb:200:in `block (4 levels) in <top (required)>'
PostsController:
class PostsController < ApplicationController
load_and_authorize_resource except: [:index, :show]
before_filter :authenticate_user!, except: [:index, :show, :tags]
before_filter :find_post, only: [:show, :edit, :update, :suspend, :suspend_alert]
def update
if #post.update_attributes(params[:post])
flash[:success] = 'Cool.'
redirect_to post_path(#post)
else
render :edit
end
end
protected
def find_post
#post = Post.find(params[:id])
end
end
Also, how should I write the test for the render :edit part?

Answer 1

Your spec never calls the controller action. Try adding:
Post.any_instance.
should_receive(:update_attributes).
with({"these" => "params"})
put :update, :id => "1", :post => {"these" => "params"}
To test the two paths that result from the call to update_attributes, substitute the value in the expectation:
it "should redirect when successful" do
Post.any_instance.
should_receive(:update_attributes).
with({"these" => "params"}).
and_return(true)`
response.should_redirect_to(post_path(#mock_post))
put :update, :id => "1", :post => {"these" => "params"}
end
it "should render the edit page when unsuccessful" do
Post.any_instance.
should_receive(:update_attributes).
with({"these" => "params"}).
and_return(false)`
response.should render_template("edit")
put :update, :id => "1", :post => {"these" => "params"}
end