require 'spec_helper'

# This spec was generated by rspec-rails when you ran the scaffold generator.
# It demonstrates how one might use RSpec to specify the controller code that
# was generated by Rails when you ran the scaffold generator.
#
# It assumes that the implementation code is generated by the rails scaffold
# generator.  If you are using any extension libraries to generate different
# controller code, this generated spec may or may not pass.
#
# It only uses APIs available in rails and/or rspec-rails.  There are a number
# of tools you can use to make these specs even more expressive, but we're
# sticking to rails and rspec-rails APIs to keep things simple and stable.
#
# Compared to earlier versions of this generator, there is very limited use of
# stubs and message expectations in this spec.  Stubs are only used when there
# is no simpler way to get a handle on the object needed for the example.
# Message expectations are only used when there is no simpler way to specify
# that an instance is receiving a specific message.

describe UsersController do

  # This should return the minimal set of attributes required to create a valid
  # User. As you add validations to User, be sure to
  # adjust the attributes here as well.
  let(:valid_attributes) { {email: 'email@email.com', first_name: 'Test first name', last_name: 'Test last name', gplus_id: 'test google+ id'} }

  # This should return the minimal set of values that should be in the session
  # in order to pass any filters (e.g. authentication) defined in
  # UsersController. Be sure to keep this updated too.
  let(:valid_session) { {} }

  before(:each) do
    controller.stub(:authenticate).and_return(true)
    request.env['HTTP_ACCEPT'] = 'application/json'
  end

  describe 'GET index' do
    it 'assigns all users as @users' do
      user = User.create! valid_attributes
      get :index, {}, valid_session
      assigns(:users).should eq([user])
    end
  end

  describe 'GET show' do
    it 'assigns the requested user as @user and returns not empty json response' do
      user = User.create! valid_attributes
      get :show, {:id => user.to_param}, valid_session
      assigns(:user).should eq(user)
      JSON.parse(response.body)['id'].should_not eq(nil)
    end
  end

  describe 'GET new' do
    it 'assigns a new user as @user' do
      get :new, {}, valid_session
      assigns(:user).should be_a_new(User)
    end
  end

  describe 'POST create' do
    describe 'with valid params' do
      it 'creates a new User' do
        expect {
          post :create, {:user => valid_attributes}, valid_session
        }.to change(User, :count).by(1)
      end

      it 'assigns a newly created user as @user' do
        post :create, {:user => valid_attributes}, valid_session
        assigns(:user).should be_a(User)
        assigns(:user).should be_persisted
      end

      it 'responses 201 Created status code' do
        post :create, {:user => valid_attributes}, valid_session
        response.status.should eq(201)
      end

      it 'responses 200 Ok in case user exists' do
        User.should_receive(:find_by_gplus_id).and_return(User.new(valid_attributes))
        User.should_not_receive(:save)
        post :create, {:user => valid_attributes}, valid_session
        response.status.should eq(200)

      end
    end

    describe 'with invalid params' do
      it "doesn't persist user and returns 422 Unprocessable entity" do
        # Trigger the behavior that occurs when invalid params are submitted
        User.any_instance.stub(:save).and_return(false)
        expect {
          post :create, {:user => {email: 'incorrect email'}}, valid_session
        }.to change(User, :count).by(0) and response.status.should eq(422)
      end

      it 'responses 400 Bad request' do
        # Trigger the behavior that occurs when invalid params are submitted
        User.any_instance.stub(:save).and_return(false)
        post :create, {:user => {}}, valid_session
        response.status.should eq(400)
      end
    end
  end

  describe 'PUT update' do
    describe 'with valid params' do
      it 'updates the requested user' do
        user = User.create! valid_attributes
        # Assuming there are no other users in the database, this
        # specifies that the User created on the previous line
        # receives the :update_attributes message with whatever params are
        # submitted in the request.
        User.any_instance.should_receive(:update).with({'gplus_id' => 'gplus id number'})
        put :update, {:id => user.to_param, :user => {gplus_id: 'gplus id number'}}, valid_session
      end

      it 'assigns the requested user as @user' do
        user = User.create! valid_attributes
        put :update, {:id => user.to_param, :user => valid_attributes}, valid_session
        assigns(:user).should eq(user)
      end

      it 'responses 200 OK' do
        user = User.create! valid_attributes
        put :update, {:id => user.to_param, :user => valid_attributes}, valid_session
        response.status.should eq(200)
      end
    end

    describe 'with invalid params' do
      it 'assigns the user as @user and returns 400 Bad request status code' do
        user = User.create! valid_attributes
        # Trigger the behavior that occurs when invalid params are submitted
        User.any_instance.stub(:save).and_return(false)
        put :update, {:id => user.to_param, :user => {}}, valid_session
        assigns(:user).should eq(user)
        response.status.should eq(400)
      end

      it 'returns 422 Unprocessible entity status code' do
        user = User.create! valid_attributes
        # Trigger the behavior that occurs when invalid params are submitted
        User.any_instance.stub(:save).and_return(false)
        put :update, {:id => user.to_param, :user => {email: 'invalid@email.test'}}, valid_session
        response.status.should eq(422)
      end
    end
  end

  describe 'DELETE destroy' do
    it 'destroys the requested user' do
      user = User.create! valid_attributes
      expect {
        delete :destroy, {:id => user.to_param}, valid_session
      }.to change(User, :count).by(-1)
    end

    it 'returns 200 OK response status' do
      user = User.create! valid_attributes
      delete :destroy, {:id => user.to_param}, valid_session
      response.status.should eq(200)
    end
  end

end
