spec/controllers/account_follow_controller_spec.rb


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require 'rails_helper'

describe AccountFollowController do
  render_views

  let(:user) { Fabricate(:user) }
  let(:alice) { Fabricate(:account, username: 'alice') }

  describe 'POST #create' do
    let(:service) { double }

    subject { post :create, params: { account_username: alice.username } }

    before do
      allow(FollowService).to receive(:new).and_return(service)
      allow(service).to receive(:call)
    end

    it 'does not create for user who is not signed in' do
      subject
      expect(FollowService).not_to receive(:new)
    end

    it 'redirects to account path' do
      sign_in(user)
      subject

      expect(service).to have_received(:call).with(user.account, 'alice')
      expect(response).to redirect_to(account_path(alice))
    end
  end
end