How to pass ID in delete :destroy in Rails?

It is super simple, yet I can't figure out how to make the test pass.

I have a friendships controller that I wanted to test (I am building Rails app similar to this railscast). It works on localhost. This is the test that I created. POST #create passed.

require 'rails_helper'

RSpec.describe FriendshipsController, type: :controller do
  login_user

  before :each do
    @friend1 = FactoryGirl.create(:user)
  end

  describe "POST #Create" do
    it "adds new friend" do
      expect {
        post :create, params: { friend_id: @friend1.id}
      }.to change(Friendship, :count).by(1)
    end
  end

  describe "DELETE #destroy" do
    it "removes a friend =(" do
      expect {
        delete :destroy, id: @friend1.id
      }.to change(Friendship, :count).by(1)
    end
  end

end

This is the actual controller:

class FriendshipsController < ApplicationController
  def create
    @friendship = current_user.friendships.build(friend_id: params[:friend_id])
    if @friendship.save
      flash[:notice] = "New friend added!"
      redirect_to root_url
    else
      flash[:error] = "Error adding friend"
      redirect_to root_url
    end
  end

  def destroy
    @friendship = current_user.friendships.find(params[:id])
    @friendship.destroy
    flash[:notice] = "Remove friendship"
    redirect_to current_user
  end
end

I also made sure that routes.rb have Friendships: resources :friendships

The problem I am having is to pass the ID.I can't figure out how to pass the id params. I think it has something to do with my factory...?

  1) FriendshipsController DELETE #destroy removes a friend =(
     Failure/Error: @friendship = current_user.friendships.find(params[:id])

     ActiveRecord::RecordNotFound:
       Couldn't find Friendship with 'id'=159 [WHERE "friendships"."user_id" = $1]

I search for other SO destroy related posts, like this one, this, but they are different case from mine.

How can I pass down ID params for my destroy action?