diff options
Diffstat (limited to 'spec/models/concerns/from_set_operator_spec.rb')
-rw-r--r-- | spec/models/concerns/from_set_operator_spec.rb | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/spec/models/concerns/from_set_operator_spec.rb b/spec/models/concerns/from_set_operator_spec.rb new file mode 100644 index 00000000000..8ebbb5550c9 --- /dev/null +++ b/spec/models/concerns/from_set_operator_spec.rb @@ -0,0 +1,20 @@ +# 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 |