From f26f31d2fd8e3c91677e2629293b9e0562c1437a Mon Sep 17 00:00:00 2001
From: GitLab Bot <gitlab-bot@gitlab.com>
Date: Wed, 15 Feb 2023 12:07:58 +0000
Subject: Add latest changes from gitlab-org/gitlab@master

---
 spec/lib/initializer_connections_spec.rb | 36 ++++++++++++++++++++++----------
 1 file changed, 25 insertions(+), 11 deletions(-)

(limited to 'spec/lib/initializer_connections_spec.rb')

diff --git a/spec/lib/initializer_connections_spec.rb b/spec/lib/initializer_connections_spec.rb
index 4ca283c4f22..e69aa0aa821 100644
--- a/spec/lib/initializer_connections_spec.rb
+++ b/spec/lib/initializer_connections_spec.rb
@@ -3,15 +3,20 @@
 require 'spec_helper'
 
 RSpec.describe InitializerConnections do
-  describe '.with_disabled_database_connections', :reestablished_active_record_base do
+  describe '.raise_if_new_database_connection', :reestablished_active_record_base do
+    before do
+      ActiveRecord::Base.connection_handler.clear_active_connections!
+      ActiveRecord::Base.connection_handler.flush_idle_connections!
+    end
+
     def block_with_database_call
-      described_class.with_disabled_database_connections do
+      described_class.raise_if_new_database_connection do
         Project.first
       end
     end
 
     def block_with_error
-      described_class.with_disabled_database_connections do
+      described_class.raise_if_new_database_connection do
         raise "oops, an error"
       end
     end
@@ -20,6 +25,12 @@ RSpec.describe InitializerConnections do
       expect { block_with_database_call }.to raise_error(/Database connection should not be called during initializer/)
     end
 
+    it 'prevents any database connection re-use within the block' do
+      Project.connection # establish a connection first, it will be used inside the block
+
+      expect { block_with_database_call }.to raise_error(/Database connection should not be called during initializer/)
+    end
+
     it 'does not prevent database connection if SKIP_RAISE_ON_INITIALIZE_CONNECTIONS is set' do
       stub_env('SKIP_RAISE_ON_INITIALIZE_CONNECTIONS', '1')
 
@@ -33,31 +44,34 @@ RSpec.describe InitializerConnections do
     end
 
     it 'restores original connection handler' do
-      # rubocop:disable Database/MultipleDatabases
       original_handler = ActiveRecord::Base.connection_handler
 
       expect { block_with_database_call }.to raise_error(/Database connection should not be called during initializer/)
 
       expect(ActiveRecord::Base.connection_handler).to eq(original_handler)
-      # rubocop:enabled Database/MultipleDatabases
     end
 
     it 'restores original connection handler even there is an error' do
-      # rubocop:disable Database/MultipleDatabases
       original_handler = ActiveRecord::Base.connection_handler
 
       expect { block_with_error }.to raise_error(/an error/)
 
       expect(ActiveRecord::Base.connection_handler).to eq(original_handler)
-      # rubocop:enabled Database/MultipleDatabases
     end
 
-    it 'raises if any new connection_pools are established in the block' do
+    it 'does not raise if connection_pool is retrieved in the block' do
+      # connection_pool, connection_db_config doesn't connect to database, so it's OK
+      expect do
+        described_class.raise_if_new_database_connection do
+          ApplicationRecord.connection_pool
+        end
+      end.not_to raise_error
+
       expect do
-        described_class.with_disabled_database_connections do
-          ApplicationRecord.connects_to database: { writing: :main, reading: :main }
+        described_class.raise_if_new_database_connection do
+          Ci::ApplicationRecord.connection_pool
         end
-      end.to raise_error(/Unxpected connection_pools/)
+      end.not_to raise_error
     end
   end
 end
-- 
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