1 files changed, 88 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/ci/pipeline_schedules_spec.rb b/spec/requests/api/graphql/ci/pipeline_schedules_spec.rb
new file mode 100644
index 00000000000..8b8ba09a95c
--- /dev/null
+++ b/spec/requests/api/graphql/ci/pipeline_schedules_spec.rb
@@ -0,0 +1,88 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Query.project.pipelineSchedules' do
+  include GraphqlHelpers
+
+  let_it_be(:project) { create(:project, :repository, :public) }
+  let_it_be(:user) { create(:user) }
+  let_it_be(:pipeline_schedule) { create(:ci_pipeline_schedule, project: project, owner: user) }
+
+  let(:pipeline_schedule_graphql_data) { graphql_data_at(:project, :pipeline_schedules, :nodes, 0) }
+
+  let(:params) { {} }
+
+  let(:fields) do
+    <<~QUERY
+      nodes {
+        id
+        description
+        active
+        nextRunAt
+        realNextRun
+        lastPipeline {
+             id
+        }
+        refForDisplay
+        refPath
+        forTag
+        cron
+        cronTimezone
+      }
+    QUERY
+  end
+
+  let(:query) do
+    %(
+      query {
+        project(fullPath: "#{project.full_path}") {
+          pipelineSchedules {
+            #{fields}
+          }
+        }
+      }
+    )
+  end
+
+  describe 'computed graphql fields' do
+    before do
+      pipeline_schedule.pipelines << build(:ci_pipeline, project: project)
+
+      post_graphql(query, current_user: user)
+    end
+
+    it_behaves_like 'a working graphql query'
+
+    it 'returns calculated fields for a pipeline schedule' do
+      ref_for_display = pipeline_schedule_graphql_data['refForDisplay']
+
+      expect(ref_for_display).to eq('master')
+      expect(pipeline_schedule_graphql_data['refPath']).to eq("/#{project.full_path}/-/commits/#{ref_for_display}")
+      expect(pipeline_schedule_graphql_data['forTag']).to be(false)
+    end
+  end
+
+  it 'avoids N+1 queries' do
+    create_pipeline_schedules(1)
+
+    control = ActiveRecord::QueryRecorder.new { post_graphql(query, current_user: user) }
+
+    create_pipeline_schedules(3)
+
+    action = ActiveRecord::QueryRecorder.new { post_graphql(query, current_user: user) }
+
+    expect(action).not_to exceed_query_limit(control)
+  end
+
+  def create_pipeline_schedules(count)
+    create_list(:ci_pipeline_schedule, count, project: project)
+      .each do |pipeline_schedule|
+      create(:user).tap do |user|
+        project.add_developer(user)
+        pipeline_schedule.update!(owner: user)
+      end
+      pipeline_schedule.pipelines << build(:ci_pipeline, project: project)
+    end
+  end
+end