All Ruby Tests Raising: Undefined Method 'Authenticate' for Nil:Nilclass

All Ruby tests raising: undefined method `authenticate' for nil:NilClass

This question has been answered on Twitter by @MatthewClosson

@jeffehh You need to create a
spec/support/devise.rb file as
specified here https://github.com/plataformatec/devise#test-helpers to
include the devise test helpers #ruby

Thanks once again.

Tests failing with undefined method `authenticate!' for nil:NilClass

You first need to add a call to the Devise minitest helpers in your test_helper.rb

class ActionController::TestCase
  include Devise::Test::ControllerHelpers
end

Or if you have an older version of Devise:

class ActionController::TestCase
  include Devise::TestHelpers
end

You then need to add a call to sign_in before each test where a user should be signed in. In your example, change the setup to:

setup do
  sign_in users(:one)
  @location = locations(:one)
end

As @Iceman points out, this is documented in the Devise README.

Test not passing: undefined method `authenticate!' for nil:NilClass?

I had to add this:

spec_helpers.rb:

RSpec.configure do |config|
  config.include Devise::TestHelpers, :type => :controller
end

Rails 4.1 tests return undefined method `authenticate' for nil:NilClass

Found the bug it wasn't in the logic it was in the tests, I was testing the password with incorrect credentials treehouse123 instead of the one that was being created in my user teamtreehouse123.

Inspiration came in this debugging code:

    def create
      user = User.find_by(email: params[:email])
      if (user.nil? == false) 
        if user.authenticate(params[:password]) 
          puts user.authenticate(params[:password])
          puts "NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN Batman!"
          session[:user_id] = user.id
          flash[:success] = "Thanks for logging in!"
          redirect_to todo_lists_path
        else 
          puts user.authenticate(params[:password])
          puts "waka waka waka waka waka waka waka waka waka waka waka waka waka waka waka waka"
          flash[:error] = "There was an error logging in. Please check your email and password"
          render action: "new"
        end
      else
        flash[:error] = "There was an error logging in. Please check your email and password"
        render action: "new"
      end
    end

user.authenticate(params[:password]) always returned false, regardless of what I did.

The Treehouse code is correct, but I'm changing all occurrences of teamtreehouse123 to password.

undefined method `[]' for nil:NilClass + after login

The parameters you are sending are incorrect, you are taking the params value as a string, which is incorrect,

Try sending params as key and value,

Send Parameters as:

{

    "utf8"=>"✓",
  "authenticity_token"=>"b7t1yJ7cGyxDmecBpvBrGLRbh/ubtPjsUFdP/HosK8kp/ZLRtrV3dVWE2vPjDnThCbt9hk1ftm5ZMg9Ia1StWw==",
    "email"=>{"pavanez4u@gmail.com",
    "tabIndex"=>"1",
    "password"=>"[FILTERED]"
    "commit"=>"Log In"
}

@email = params[:email] this line throws you an error because the params format is incorrect.

NoMethodError: undefined method 'customer_details' for nil:NilClass in RSpec

current_shop is nil in your controller. It's not enough that you set shop in your spec code. Instance variables from specs are not shared with a controller under test.

Ensure that the shop you're creating in

    @shop = create(:shop)

has field shopify_domain set to whatever value has cookies[:shopify_domain] in your test request.

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