How do you test authentication in API controllers - ruby-on-rails

Question

I'm writing a Rails API and am stuck trying to write controllers that will test the authentication. For instance, I have in my PostController before_action :authenticate which is
def authenticate
authenticate_or_request_with_http_token do |token, options|
User.find_by(:auth_token => token)
end
end
And this is my PostsController test:
require 'rails_helper'
RSpec.describe Api::PostsController, type: :controller do
let(:valid_attributes) {
{
"title" => "Post title",
"content" => "Post content",
"status" => "published"
}
}
let(:invalid_attributes) {
{
"title" => "",
"content" => "",
"status" => ""
}
}
let(:valid_session) { {} }
before do
params = { session: { email: 'wagner.matos#mac.com', password: 'foobar' } }
SessionsController.create params
#post = Post.new({
title: "Some title",
content: 'Some content',
status: "published"
})
end
it "creates a new post" do
post :create, post: #post
expect(Post.count).to eq(1)
end
end
Yet the above is failing with the following error:
1) Api::PostsController creates a new post
Failure/Error: SessionsController.create params
NoMethodError:
undefined method `create' for SessionsController:Class
Any suggestions?

Answer 1

You can not invoke create action of SessionsController with class. Better you create user object and assign to request.env the same token. like below sample code -
require 'rails_helper'
RSpec.describe Api::PostsController, type: :controller do
before do
user = User.create( :auth_token => 'token' )
request.env["HTTP_AUTHORIZATION"] = ActionController::HttpAuthentication::Token.encode_credentials("token")
end
end