Add missing specs for Project.clusterAgents

ee/spec/requests/api/graphql/project/cluster_agents_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Project.cluster_agents' do
+  include GraphqlHelpers
+
+  let_it_be(:project) { create(:project, :public) }
+  let_it_be(:current_user) { create(:user, maintainer_projects: [project]) }
+  let_it_be(:agents) { create_list(:cluster_agent, 5, project: project) }
+
+  let(:first) { var('Int') }
+  let(:cluster_agents_fields) { nil }
+  let(:project_fields) do
+    query_nodes(:cluster_agents, cluster_agents_fields, args: { first: first }, max_depth: 3)
+  end
+
+  let(:query) do
+    args = { full_path: project.full_path }
+
+    with_signature([first], graphql_query_for(:project, args, project_fields))
+  end
+
+  before do
+    stub_licensed_features(cluster_agents: true)
+  end
+
+  it 'can retrieve cluster agents' do
+    post_graphql(query, current_user: current_user)
+
+    expect(graphql_data_at(:project, :cluster_agents, :nodes)).to match_array(
+      agents.map { |agent| a_hash_including('id' => global_id_of(agent)) }
+    )
+  end
+
+  context 'selecting page info' do
+    let(:project_fields) do
+      query_nodes(:cluster_agents, args: { first: first }, include_pagination_info: true)
+    end
+
+    it 'can paginate cluster agents' do
+      post_graphql(query, current_user: current_user, variables: first.with(2))
+
+      expect(graphql_data_at(:project, :cluster_agents, :page_info)).to include(
+        'hasNextPage' => be_truthy,
+        'hasPreviousPage' => be_falsey
+      )
+      expect(graphql_data_at(:project, :cluster_agents, :nodes)).to have_attributes(size: 2)
+    end
+  end
+
+  context 'selecting tokens' do
+    let(:cluster_agents_fields) { [:id, query_nodes(:tokens, of: 'ClusterAgentToken')] }
+
+    before do
+      create(:cluster_agent_token, agent: agents.first)
+      create(:cluster_agent_token, agent: agents.second)
+    end
+
+    it 'can select tokens' do
+      post_graphql(query, current_user: current_user)
+
+      tokens = graphql_data_at(:project, :cluster_agents, :nodes, :tokens, :nodes)
+
+      expect(tokens).to contain_exactly(
+        a_hash_including('id' => be_present),
+        a_hash_including('id' => be_present)
+      )
+    end
+
+    it 'does not suffer from N+1 performance issues' do
+      expect do
+        post_graphql(query, current_user: current_user)
+      end.to issue_same_number_of_queries_as { post_graphql(query, current_user: current_user, variables: [first.with(1)]) }
+    end
+  end
+end

spec/support/helpers/graphql_helpers.rb

@@ -31,6 +31,7 @@ module GraphqlHelpers
   end
 
   # TODO: Remove this method entirely when GraphqlHelpers uses real resolve_field
+  # see: https://gitlab.com/gitlab-org/gitlab/-/issues/287791
   def aliased_args(resolver, args)
     definitions = resolver.arguments