RSpec: Verify doubled constant names by default

See https://bit.ly/3CyeyNP

This commit also fixes cases where verification of constants failed by
either using `double` or fixing the stubbed constant name.

ee/spec/finders/security/pipeline_vulnerabilities_finder_spec.rb

@@ -5,7 +5,7 @@ require 'spec_helper'
 RSpec.describe Security::PipelineVulnerabilitiesFinder do
   def disable_deduplication
     allow(::Security::MergeReportsService).to receive(:new) do |*args|
-      instance_double('NoDeduplicationMergeReportsService', execute: args.last)
+      double('no_deduplication_service', execute: args.last)
     end
   end
 

ee/spec/lib/ee/gitlab/gon_helper_spec.rb

@@ -14,7 +14,7 @@ RSpec.describe EE::Gitlab::GonHelper do
   end
 
   describe '#add_gon_variables' do
-    let(:gon) { instance_double('gon').as_null_object }
+    let(:gon) { double('gon').as_null_object }
 
     before do
       allow(helper).to receive(:gon).and_return(gon)
@@ -45,7 +45,7 @@ RSpec.describe EE::Gitlab::GonHelper do
 
     shared_examples 'sets the licensed features flag' do
       it 'pushes the licensed feature flag to the frotnend' do
-        gon = instance_double('gon')
+        gon = class_double('Gon')
         stub_licensed_features(feature => true)
 
         allow(helper)

ee/spec/lib/gitlab/rack_attack_spec.rb

@@ -9,9 +9,6 @@ RSpec.describe Gitlab::RackAttack, :aggregate_failures do
     let(:fake_cache) { instance_double("Rack::Attack::Cache") }
 
     before do
-      stub_const("Rack::Attack", fake_rack_attack)
-      stub_const("Rack::Attack::Request", fake_rack_attack_request)
-
       allow(fake_rack_attack).to receive(:throttled_response=)
       allow(fake_rack_attack).to receive(:throttle)
       allow(fake_rack_attack).to receive(:track)
@@ -19,6 +16,9 @@ RSpec.describe Gitlab::RackAttack, :aggregate_failures do
       allow(fake_rack_attack).to receive(:blocklist)
       allow(fake_rack_attack).to receive(:cache).and_return(fake_cache)
       allow(fake_cache).to receive(:store=)
+
+      fake_rack_attack.const_set('Request', fake_rack_attack_request)
+      stub_const("Rack::Attack", fake_rack_attack)
     end
 
     it 'adds the incident management throttle' do

ee/spec/services/group_saml/group_managed_accounts/transfer_membership_service_spec.rb

@@ -15,7 +15,7 @@ RSpec.describe GroupSaml::GroupManagedAccounts::TransferMembershipService do
 
     allow(Gitlab::Auth::GroupSaml::IdentityLinker)
       .to receive(:new).with(current_user, oauth_data, session, group.saml_provider)
-            .and_return(instance_double('GitLab::Auth::GroupSaml::IdentityLinker', link: '', failed?: false))
+            .and_return(instance_double('Gitlab::Auth::GroupSaml::IdentityLinker', link: '', failed?: false))
   end
 
   it 'removes the current password' do

ee/spec/services/namespaces/check_storage_size_service_spec.rb

@@ -14,7 +14,7 @@ RSpec.describe Namespaces::CheckStorageSizeService, '#execute' do
   before do
     allow(namespace).to receive(:root_ancestor).and_return(namespace)
 
-    root_storage_size = instance_double("RootStorageSize",
+    root_storage_size = instance_double(EE::Namespace::RootStorageSize,
       current_size: current_size,
       limit: limit,
       usage_ratio: limit == 0 ? 0 : current_size.to_f / limit.to_f,

spec/lib/banzai/reference_parser/base_parser_spec.rb

@@ -29,10 +29,10 @@ RSpec.describe Banzai::ReferenceParser::BaseParser do
 
   describe '#project_for_node' do
     it 'returns the Project for a node' do
-      document = instance_double('document', fragment?: false)
-      project = instance_double('project')
-      object = instance_double('object', project: project)
-      node = instance_double('node', document: document)
+      document = double('document', fragment?: false)
+      project = instance_double('Project')
+      object = double('object', project: project)
+      node = double('node', document: document)
 
       context.associate_document(document, object)
 

spec/lib/banzai/render_context_spec.rb

@@ -7,15 +7,15 @@ RSpec.describe Banzai::RenderContext do
 
   describe '#project_for_node' do
     it 'returns the default project if no associated project was found' do
-      project = instance_double('project')
+      project = instance_double('Project')
       context = described_class.new(project)
 
       expect(context.project_for_node(document)).to eq(project)
     end
 
     it 'returns the associated project if one was associated explicitly' do
-      project = instance_double('project')
-      obj = instance_double('object', project: project)
+      project = instance_double('Project')
+      obj = double('object', project: project)
       context = described_class.new
 
       context.associate_document(document, obj)
@@ -24,8 +24,8 @@ RSpec.describe Banzai::RenderContext do
     end
 
     it 'returns the project associated with a DocumentFragment when using a node' do
-      project = instance_double('project')
-      obj = instance_double('object', project: project)
+      project = instance_double('Project')
+      obj = double('object', project: project)
       context = described_class.new
       node = document.children.first
 

spec/lib/gitlab/experimentation/controller_concern_spec.rb

@@ -97,7 +97,7 @@ RSpec.describe Gitlab::Experimentation::ControllerConcern, type: :controller do
 
   describe '#push_frontend_experiment' do
     it 'pushes an experiment to the frontend' do
-      gon = instance_double('gon')
+      gon = class_double('Gon')
       stub_experiment_for_subject(my_experiment: true)
       allow(controller).to receive(:gon).and_return(gon)
 

spec/lib/gitlab/git/rugged_impl/use_rugged_spec.rb

@@ -110,7 +110,7 @@ RSpec.describe Gitlab::Git::RuggedImpl::UseRugged, :seed_helper do
   describe '#running_puma_with_multiple_threads?' do
     context 'when using Puma' do
       before do
-        stub_const('::Puma', class_double('Puma'))
+        stub_const('::Puma', double('puma constant'))
         allow(Gitlab::Runtime).to receive(:puma?).and_return(true)
       end
 

spec/lib/gitlab/gon_helper_spec.rb

@@ -15,7 +15,7 @@ RSpec.describe Gitlab::GonHelper do
     end
 
     it 'pushes a feature flag to the frontend' do
-      gon = instance_double('gon')
+      gon = class_double('Gon')
       thing = stub_feature_flag_gate('thing')
 
       stub_feature_flags(my_feature_flag: thing)

spec/lib/gitlab/lets_encrypt/client_spec.rb

@@ -73,7 +73,7 @@ RSpec.describe ::Gitlab::LetsEncrypt::Client do
     subject(:new_order) { client.new_order('example.com') }
 
     before do
-      order_double = instance_double('Acme::Order')
+      order_double = double('Acme::Order')
       allow(stub_client).to receive(:new_order).and_return(order_double)
     end
 
@@ -107,7 +107,7 @@ RSpec.describe ::Gitlab::LetsEncrypt::Client do
     subject { client.load_challenge(url) }
 
     before do
-      acme_challenge = instance_double('Acme::Client::Resources::Challenge')
+      acme_challenge = double('Acme::Client::Resources::Challenge')
       allow(stub_client).to receive(:challenge).with(url: url).and_return(acme_challenge)
     end
 

spec/lib/gitlab/rack_attack_spec.rb

@@ -5,8 +5,8 @@ require 'spec_helper'
 RSpec.describe Gitlab::RackAttack, :aggregate_failures do
   describe '.configure' do
     let(:fake_rack_attack) { class_double("Rack::Attack") }
-    let(:fake_rack_attack_request) { class_double("Rack::Attack::Request") }
-    let(:fake_cache) { instance_double("Rack::Attack::Cache") }
+    let(:fake_rack_attack_request) { class_double(Rack::Attack::Request) }
+    let(:fake_cache) { instance_double(Rack::Attack::Cache) }
 
     let(:throttles) do
       {
@@ -27,9 +27,6 @@ RSpec.describe Gitlab::RackAttack, :aggregate_failures do
     end
 
     before do
-      stub_const("Rack::Attack", fake_rack_attack)
-      stub_const("Rack::Attack::Request", fake_rack_attack_request)
-
       allow(fake_rack_attack).to receive(:throttled_response=)
       allow(fake_rack_attack).to receive(:throttle)
       allow(fake_rack_attack).to receive(:track)
@@ -37,6 +34,9 @@ RSpec.describe Gitlab::RackAttack, :aggregate_failures do
       allow(fake_rack_attack).to receive(:blocklist)
       allow(fake_rack_attack).to receive(:cache).and_return(fake_cache)
       allow(fake_cache).to receive(:store=)
+
+      fake_rack_attack.const_set('Request', fake_rack_attack_request)
+      stub_const("Rack::Attack", fake_rack_attack)
     end
 
     it 'extends the request class' do

spec/models/deployment_metrics_spec.rb

@@ -111,7 +111,7 @@ RSpec.describe DeploymentMetrics do
         }
       end
 
-      let(:prometheus_adapter) { instance_double('prometheus_adapter', can_query?: true, configured?: true) }
+      let(:prometheus_adapter) { instance_double(::Integrations::Prometheus, can_query?: true, configured?: true) }
 
       before do
         allow(deployment_metrics).to receive(:prometheus_adapter).and_return(prometheus_adapter)

spec/requests/api/graphql/mutations/design_management/delete_spec.rb

@@ -53,7 +53,7 @@ RSpec.describe "deleting designs" do
 
   context 'the designs list contains filenames we cannot find' do
     it_behaves_like 'a failed request' do
-      let(:designs) { %w/foo bar baz/.map { |fn| instance_double('file', filename: fn) } }
+      let(:designs) { %w/foo bar baz/.map { |fn| double('file', filename: fn) } }
       let(:the_error) { a_string_matching %r/filenames were not found/ }
     end
   end

spec/services/clusters/integrations/prometheus_health_check_service_spec.rb

@@ -58,7 +58,7 @@ RSpec.describe Clusters::Integrations::PrometheusHealthCheckService, '#execute'
       let(:prometheus_enabled) { true }
 
       before do
-        client = instance_double('PrometheusClient', healthy?: client_healthy)
+        client = instance_double('Gitlab::PrometheusClient', healthy?: client_healthy)
         expect(prometheus).to receive(:prometheus_client).and_return(client)
       end
 

spec/services/merge_requests/merge_service_spec.rb

@@ -151,7 +151,7 @@ RSpec.describe MergeRequests::MergeService do
 
       it 'closes GitLab issue tracker issues' do
         issue  = create :issue, project: project
-        commit = instance_double('commit', safe_message: "Fixes #{issue.to_reference}", date: Time.current, authored_date: Time.current)
+        commit = double('commit', safe_message: "Fixes #{issue.to_reference}", date: Time.current, authored_date: Time.current)
         allow(merge_request).to receive(:commits).and_return([commit])
         merge_request.cache_merge_request_closes_issues!
 

spec/support/rspec.rb

@@ -15,7 +15,10 @@ require 'rubocop'
 require 'rubocop/rspec/support'
 
 RSpec.configure do |config|
-  config.mock_with :rspec
+  config.mock_with :rspec do |mocks|
+    mocks.verify_doubled_constant_names = true
+  end
+
   config.raise_errors_for_deprecations!
 
   config.include StubConfiguration