Implement UntenantedConnectionPool#size

so the mock object can be inspected for that config param.

Author: flavorjones

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## next / unreleased
 
-### Changed
+### Breaking change: Rake tasks
 
 Some rake task changes to rename tasks for the database name (like Rails does it):
 
@@ -24,6 +24,11 @@ Some additional changes:
 - `ActiveRecord::Tenanted.base_configs` is a new utility method that returns all the tenanted base configs for the current environment.
 
 
+### Added
+
+- `UntenantedConnectionPool#size` returns the database configuration's `max_connections` value, so that code (like Solid Queue) can inspect config params without a tenant context.
+
+
 ## v0.5.0 / 2025-10-12
 
 ### Fixed

lib/active_record/tenanted/untenanted_connection_pool.rb

@@ -28,6 +28,10 @@ def schema_cache
         ActiveRecord::ConnectionAdapters::BoundSchemaReflection.new(schema_reflection, self)
       end
 
+      def size
+        db_config.max_connections
+      end
+
       def lease_connection(...)
         raise Tenanted::NoTenantError, "Cannot connect to a tenanted database while untenanted (#{@model})."
       end

test/unit/untenanted_connection_pool_test.rb

@@ -19,5 +19,10 @@
         assert_equal("Cannot connect to a tenanted database while untenanted (User).", e.message)
       end
     end
+
+    test "size returns max_connections from db_config" do
+      def config.max_connections; 42; end
+      assert_equal 42, subject.size
+    end
   end
 end