discourse/spec/jobs/update_username_spec.rb

# frozen_string_literal: true

RSpec.describe Jobs::UpdateUsername do
  fab!(:user) { Fabricate(:user) }

  it 'does not do anything if user_id is invalid' do
    events = DiscourseEvent.track_events do
      described_class.new.execute(
        user_id: -999,
        old_username: user.username,
        new_username: 'somenewusername',
        avatar_template: user.avatar_template
      )
    end

    expect(events).to eq([])
  end
end