Fix failing specs when on Puma

We need to clear the thread memory cache because with Puma
we now share threads across requests

config/environments/test.rb

 require 'gitlab/testing/request_blocker_middleware'
 require 'gitlab/testing/request_inspector_middleware'
+require 'gitlab/testing/clear_thread_memory_cache_middleware'
 
 Rails.application.configure do
   # Make sure the middleware is inserted first in middleware chain
   config.middleware.insert_before(ActionDispatch::Static, Gitlab::Testing::RequestBlockerMiddleware)
   config.middleware.insert_before(ActionDispatch::Static, Gitlab::Testing::RequestInspectorMiddleware)
+  config.middleware.insert_before(ActionDispatch::Static, Gitlab::Testing::ClearThreadMemoryCacheMiddleware)
 
   # Settings specified here will take precedence over those in config/application.rb
 

lib/gitlab/testing/clear_thread_memory_cache_middleware.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module Testing
+    class ClearThreadMemoryCacheMiddleware
+      def initialize(app)
+        @app = app
+      end
+
+      def call(env)
+        Gitlab::ThreadMemoryCache.cache_backend.clear
+
+        @app.call(env)
+      end
+    end
+  end
+end

spec/features/issues/user_edits_issue_spec.rb

@@ -143,16 +143,11 @@ describe "Issues > User edits issue", :js do
         end
 
         it 'allows user to unselect themselves' do
-          issue2 = create(:issue, project: project, author: user)
+          issue2 = create(:issue, project: project, author: user, assignees: [user])
 
           visit project_issue_path(project, issue2)
 
           page.within '.assignee' do
-            click_link 'Edit'
-            click_link user.name
-
-            close_dropdown_menu_if_visible
-
             page.within '.value .author' do
               expect(page).to have_content user.name
             end

spec/features/profiles/active_sessions_spec.rb

@@ -11,13 +11,8 @@ describe 'Profile > Active Sessions', :clean_gitlab_redis_shared_state do
 
   let(:admin) { create(:admin) }
 
-  around do |example|
-    Timecop.freeze(Time.zone.parse('2018-03-12 09:06')) do
-      example.run
-    end
-  end
-
   it 'User sees their active sessions' do
+    Timecop.freeze(Time.zone.parse('2018-03-12 09:06')) do
       Capybara::Session.new(:session1)
       Capybara::Session.new(:session2)
       Capybara::Session.new(:session3)
@@ -84,8 +79,9 @@ describe 'Profile > Active Sessions', :clean_gitlab_redis_shared_state do
         expect(page).not_to have_content('Chrome on Windows')
       end
     end
+  end
 
-  it 'User can revoke a session', :js, :redis_session_store do
+  it 'User can revoke a session', :js do
     Capybara::Session.new(:session1)
     Capybara::Session.new(:session2)
 

spec/features/projects/clusters/gcp_spec.rb

@@ -200,7 +200,7 @@ describe 'Gcp Cluster', :js, :do_not_mock_admin_mode do
     end
   end
 
-  context 'when third party offers are disabled' do
+  context 'when third party offers are disabled', :clean_gitlab_redis_shared_state do
     let(:admin) { create(:admin) }
 
     before do

spec/support/capybara.rb

@@ -60,6 +60,7 @@ Capybara.register_driver :chrome do |app|
   )
 end
 
+Capybara.server = :puma
 Capybara.javascript_driver = :chrome
 Capybara.default_max_wait_time = timeout
 Capybara.ignore_hidden_elements = true