Remove unused requires and refactor teardown

Author: zzak

activerecord/test/cases/active_record_test.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 require "cases/helper"
-require "rack"
 
 class ActiveRecordTest < ActiveRecord::TestCase
   self.use_transactional_tests = false

activerecord/test/cases/asynchronous_queries_test.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 require "cases/helper"
-require "support/connection_helper"
 require "models/post"
 
 module AsynchronousQueriesSharedTests
@@ -127,6 +126,10 @@ def setup
 end
 
 class AsynchronousExecutorTypeTest < ActiveRecord::TestCase
+  def teardown
+    clean_up_connection_handler
+  end
+
   def test_null_configuration_uses_a_single_null_executor_by_default
     old_value = ActiveRecord.async_query_executor
     ActiveRecord.async_query_executor = nil
@@ -145,7 +148,6 @@ def test_null_configuration_uses_a_single_null_executor_by_default
 
     assert_equal 2, handler.connection_pool_list(:all).count
   ensure
-    clean_up_connection_handler
     ActiveRecord.async_query_executor = old_value
   end
 
@@ -178,7 +180,6 @@ def test_one_global_thread_pool_is_used_when_set_with_default_concurrency
     assert_equal 2, handler.connection_pool_list(:all).count
     assert_equal async_pool1, async_pool2
   ensure
-    clean_up_connection_handler
     ActiveRecord.async_query_executor = old_value
   end
 
@@ -215,7 +216,6 @@ def test_concurrency_can_be_set_on_global_thread_pool
     assert_equal 2, handler.connection_pool_list(:all).count
     assert_equal async_pool1, async_pool2
   ensure
-    clean_up_connection_handler
     ActiveRecord.global_executor_concurrency = old_concurrency
     ActiveRecord.async_query_executor = old_value
     ActiveRecord.instance_variable_set(:@global_thread_pool_async_query_executor, old_global_thread_pool_async_query_executor)
@@ -269,7 +269,6 @@ def test_multi_thread_pool_executor_configuration
     assert_equal 2, handler.connection_pool_list(:all).count
     assert_not_equal async_pool1, async_pool2
   ensure
-    clean_up_connection_handler
     ActiveRecord.async_query_executor = old_value
   end
 
@@ -304,7 +303,6 @@ def test_multi_thread_pool_is_used_only_by_configurations_that_enable_it
     assert_equal 2, handler.connection_pool_list(:all).count
     assert_not_equal async_pool1, async_pool2
   ensure
-    clean_up_connection_handler
     ActiveRecord.async_query_executor = old_value
   end
 end

activerecord/test/cases/query_cache_test.rb

@@ -5,7 +5,6 @@
 require "models/task"
 require "models/category"
 require "models/post"
-require "rack"
 
 class QueryCacheTest < ActiveRecord::TestCase
   self.use_transactional_tests = false