spec/services/fetch_link_card_service_spec.rb


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require 'rails_helper'

RSpec.describe FetchLinkCardService do
  before do
    stub_request(:head, 'http://example.xn--fiqs8s/').to_return(status: 200, headers: { 'Content-Type' => 'text/html' })
    stub_request(:get, 'http://example.xn--fiqs8s/').to_return(request_fixture('idn.txt'))
  end

  it 'works with IDN URLs' do
    status = Fabricate(:status, text: 'Check out http://example.中国')

    FetchLinkCardService.new.call(status)
    expect(a_request(:get, 'http://example.xn--fiqs8s/')).to have_been_made.at_least_once
  end
end