gitlab-org--gitlab-foss/spec/models/concerns/from_set_operator_spec.rb

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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe FromSetOperator do
describe 'when set operator method already exists' do
let(:redefine_method) do
Class.new do
def self.from_union
# This method intentionally left blank.
end
extend FromSetOperator
define_set_operator Gitlab::SQL::Union
end
end
it { expect { redefine_method }.to raise_exception(RuntimeError) }
end
end