Extract default log file open operation to method

This allows customize a default log file(e.g. `reopen`) by an application.

Fixes #32211.

1 files changed, 7 insertions, 0 deletions

diff --git a/railties/test/application/configuration_test.rb b/railties/test/application/configuration_test.rb
index 7c613585e0..6f9711cb37 100644
--- a/railties/test/application/configuration_test.rb
+++ b/railties/test/application/configuration_test.rb
@@ -1607,6 +1607,13 @@ module ApplicationTests
       assert_not_nil Rails::SourceAnnotationExtractor::Annotation.extensions[/\.(coffee)$/]
     end
 
+    test "config.default_log_file returns a File instance" do
+      app "development"
+
+      assert_instance_of File, app.config.default_log_file
+      assert_equal Rails.application.config.paths["log"].first, app.config.default_log_file.path
+    end
+
     test "rake_tasks block works at instance level" do
       app_file "config/environments/development.rb", <<-RUBY
         Rails.application.configure do