1 files changed, 24 insertions, 0 deletions
diff --git a/spec/services/ci/queue/pending_builds_strategy_spec.rb b/spec/services/ci/queue/pending_builds_strategy_spec.rb
new file mode 100644
index 00000000000..6f22c256c17
--- /dev/null
+++ b/spec/services/ci/queue/pending_builds_strategy_spec.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Ci::Queue::PendingBuildsStrategy do
+  let_it_be(:group) { create(:group) }
+  let_it_be(:group_runner) { create(:ci_runner, :group, groups: [group]) }
+  let_it_be(:project) { create(:project, group: group) }
+  let_it_be(:pipeline) { create(:ci_pipeline, project: project) }
+
+  let!(:build_1) { create(:ci_build, :created, pipeline: pipeline) }
+  let!(:build_2) { create(:ci_build, :created, pipeline: pipeline) }
+  let!(:build_3) { create(:ci_build, :created, pipeline: pipeline) }
+  let!(:pending_build_1) { create(:ci_pending_build, build: build_2, project: project) }
+  let!(:pending_build_2) { create(:ci_pending_build, build: build_3, project: project) }
+  let!(:pending_build_3) { create(:ci_pending_build, build: build_1, project: project) }
+
+  describe 'builds_for_group_runner' do
+    it 'returns builds ordered by build ID' do
+      strategy = described_class.new(group_runner)
+      expect(strategy.builds_for_group_runner).to eq([pending_build_3, pending_build_1, pending_build_2])
+    end
+  end
+end