diff options
Diffstat (limited to 'spec/lib/gitlab/sql/union_spec.rb')
-rw-r--r-- | spec/lib/gitlab/sql/union_spec.rb | 37 |
1 files changed, 1 insertions, 36 deletions
diff --git a/spec/lib/gitlab/sql/union_spec.rb b/spec/lib/gitlab/sql/union_spec.rb index c8be83c093d..a41551e25bf 100644 --- a/spec/lib/gitlab/sql/union_spec.rb +++ b/spec/lib/gitlab/sql/union_spec.rb @@ -3,40 +3,5 @@ require 'spec_helper' RSpec.describe Gitlab::SQL::Union do - let(:relation_1) { User.where(email: 'alice@example.com').select(:id) } - let(:relation_2) { User.where(email: 'bob@example.com').select(:id) } - - def to_sql(relation) - relation.reorder(nil).to_sql - end - - describe '#to_sql' do - it 'returns a String joining relations together using a UNION' do - union = described_class.new([relation_1, relation_2]) - - expect(union.to_sql).to eq("(#{to_sql(relation_1)})\nUNION\n(#{to_sql(relation_2)})") - end - - it 'skips Model.none segements' do - empty_relation = User.none - union = described_class.new([empty_relation, relation_1, relation_2]) - - expect {User.where("users.id IN (#{union.to_sql})").to_a}.not_to raise_error - expect(union.to_sql).to eq("(#{to_sql(relation_1)})\nUNION\n(#{to_sql(relation_2)})") - end - - it 'uses UNION ALL when removing duplicates is disabled' do - union = described_class - .new([relation_1, relation_2], remove_duplicates: false) - - expect(union.to_sql).to include('UNION ALL') - end - - it 'returns `NULL` if all relations are empty' do - empty_relation = User.none - union = described_class.new([empty_relation, empty_relation]) - - expect(union.to_sql).to eq('NULL') - end - end + it_behaves_like 'SQL set operator', 'UNION' end |