Cache namespace name if env var is set

Use existing group for project and existing project for runner
to avoid creating new resources

qa/qa/runtime/browser.rb

@@ -133,7 +133,7 @@ module QA
         Capybara::Screenshot.append_timestamp = false
 
         Capybara::Screenshot.register_filename_prefix_formatter(:rspec) do |example|
-          ::File.join(QA::Runtime::Namespace.name, example.full_description.downcase.parameterize(separator: "_")[0..99])
+          ::File.join(QA::Runtime::Namespace.name(reset_cache: false), example.full_description.downcase.parameterize(separator: "_")[0..99])
         end
 
         Capybara.configure do |config|

qa/qa/runtime/env.rb

@@ -268,6 +268,10 @@ module QA
         ENV['JIRA_HOSTNAME']
       end
 
+      def cache_namespace_name?
+        enabled?(ENV['CACHE_NAMESPACE_NAME'], default: true)
+      end
+
       def knapsack?
         !!(ENV['KNAPSACK_GENERATE_REPORT'] || ENV['KNAPSACK_REPORT_PATH'] || ENV['KNAPSACK_TEST_FILE_PATTERN'])
       end

qa/qa/runtime/namespace.rb

@@ -9,14 +9,19 @@ module QA
         @time ||= Time.now
       end
 
-      def name
+      def name(reset_cache: !Runtime::Env.cache_namespace_name?)
         # If any changes are made to the name tag, following script has to be considered:
         # https://ops.gitlab.net/gitlab-com/gl-infra/traffic-generator/blob/master/bin/janitor.bash
-        @name ||= Runtime::Env.namespace_name || "qa-test-#{time.strftime('%Y-%m-%d-%H-%M-%S')}-#{SecureRandom.hex(8)}"
+        reset_name_cache if reset_cache
+        @name ||= Runtime::Env.namespace_name || "qa-test-#{time.strftime('%Y-%m-%d-%H-%M-%S')}-#{SecureRandom.hex(8)}" # rubocop:disable Gitlab/ModuleWithInstanceVariables
+      end
+
+      def reset_name_cache
+        @name = nil # rubocop:disable Gitlab/ModuleWithInstanceVariables
       end
 
       def path
-        "#{sandbox_name}/#{name}"
+        "#{sandbox_name}/#{name(reset_cache: false)}"
       end
 
       def sandbox_name

qa/qa/specs/features/browser_ui/2_plan/milestone/assign_milestone_spec.rb

@@ -17,6 +17,7 @@ module QA
       let(:project) do
         Resource::Project.fabricate_via_api! do |project|
           project.name = 'project-to-test-milestones'
+          project.group = group
         end
       end
 

qa/qa/specs/features/ee/browser_ui/1_manage/project/project_templates_spec.rb

@@ -55,7 +55,7 @@ module QA
           end
 
           create_project_using_template(project_name: 'Project using built-in project template',
-            namespace: Runtime::Namespace.name,
+            namespace: Runtime::Namespace.name(reset_cache: false),
             template_name: built_in)
 
           Page::Project::Show.perform(&:wait_for_import_success)

qa/qa/specs/features/ee/browser_ui/4_verify/pipeline_status_on_operation_dashboard_spec.rb

@@ -9,6 +9,7 @@ module QA
           runner.token = group.reload!.runners_token
           runner.name = group.name
           runner.tags = [group.name]
+          runner.project = project_with_success_run
         end
       end
 

qa/qa/specs/features/ee/browser_ui/6_release/pipelines_for_merged_results_and_merge_trains_spec.rb

@@ -5,20 +5,21 @@ require 'securerandom'
 module QA
   RSpec.describe 'Release', :docker, :runner do
     describe 'Pipelines for merged results and merge trains' do
-      before(:context) do
-        @group = Resource::Group.fabricate_via_api!
+      let(:group) { Resource::Group.fabricate_via_api! }
 
-        @runner = Resource::Runner.fabricate_via_api! do |runner|
-          runner.token = @group.reload!.runners_token
-          runner.name = @group.name
-          runner.tags = [@group.name]
+      let!(:runner) do
+        Resource::Runner.fabricate_via_api! do |runner|
+          runner.token = group.reload!.runners_token
+          runner.name = group.name
+          runner.tags = [group.name]
+          runner.project = project
         end
       end
 
       let(:project) do
         Resource::Project.fabricate_via_api! do |project|
           project.name = 'pipelines-for-merged-results-and-merge-trains'
-          project.group = @group
+          project.group = group
         end
       end
 
@@ -32,7 +33,7 @@ module QA
                 file_path: '.gitlab-ci.yml',
                 content: <<~EOF
                   test:
-                    tags: [#{@group.name}]
+                    tags: [#{group.name}]
                     script: echo 'OK'
                     only:
                     - merge_requests
@@ -54,8 +55,8 @@ module QA
         end
       end
 
-      after(:context) do
-        @runner.remove_via_api! if @runner
+      after do
+        runner.remove_via_api! if runner
       end
 
       it 'creates a pipeline with merged results', status_issue: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/562' do

qa/spec/runtime/namespace_spec.rb

+# frozen_string_literal: true
+
+describe QA::Runtime::Namespace do
+  include Helpers::StubENV
+
+  describe '.name' do
+    context 'when CACHE_NAMESPACE_NAME is not defined' do
+      before do
+        stub_env('CACHE_NAMESPACE_NAME', nil)
+      end
+
+      it 'caches name by default' do
+        name = described_class.name
+        expect(described_class.name).to eq(name)
+      end
+
+      it 'does not cache name when reset_cache is true' do
+        name = described_class.name
+        expect(described_class.name(reset_cache: true)).not_to eq(name)
+      end
+    end
+
+    context 'when CACHE_NAMESPACE_NAME is defined' do
+      before do
+        stub_env('CACHE_NAMESPACE_NAME', 'true')
+      end
+
+      it 'caches name by default' do
+        name = described_class.name
+        expect(described_class.name).to eq(name)
+      end
+
+      it 'caches name when reset_cache is false' do
+        name = described_class.name
+        expect(described_class.name(reset_cache: false)).to eq(name)
+      end
+
+      it 'does not cache name when reset_cache is true' do
+        name = described_class.name
+        expect(described_class.name(reset_cache: true)).not_to eq(name)
+      end
+    end
+  end
+
+  describe '.path' do
+    it 'is always cached' do
+      path = described_class.path
+      expect(described_class.path).to eq(path)
+    end
+  end
+end