From b6f935bbf9b8470b370ea613dc61218849aabf89 Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Fri, 21 Oct 2016 14:44:17 -0700
Subject: Use `on_load` to trigger commandline processing code

We need to use on_load so that plugins will get the same functionality
---
 railties/lib/rails/commands/test/test_command.rb | 5 -----
 railties/lib/rails/test_unit/railtie.rb          | 8 ++++++++
 2 files changed, 8 insertions(+), 5 deletions(-)

(limited to 'railties')

diff --git a/railties/lib/rails/commands/test/test_command.rb b/railties/lib/rails/commands/test/test_command.rb
index e97b9cbbba..1b2e3af9cc 100644
--- a/railties/lib/rails/commands/test/test_command.rb
+++ b/railties/lib/rails/commands/test/test_command.rb
@@ -1,6 +1,5 @@
 require "rails/command"
 require "rails/test_unit/minitest_plugin"
-require "rails/test_unit/line_filtering"
 
 module Rails
   module Command
@@ -12,10 +11,6 @@ module Rails
       def perform(*)
         $LOAD_PATH << Rails::Command.root.join("test")
 
-        # Add test line filtering support for running test by line number
-        # via the command line.
-        ActiveSupport::TestCase.extend Rails::LineFiltering
-
         Minitest.run_via[:rails] = true
 
         require "active_support/testing/autorun"
diff --git a/railties/lib/rails/test_unit/railtie.rb b/railties/lib/rails/test_unit/railtie.rb
index ec91673e40..746120e6a1 100644
--- a/railties/lib/rails/test_unit/railtie.rb
+++ b/railties/lib/rails/test_unit/railtie.rb
@@ -1,3 +1,5 @@
+require "rails/test_unit/line_filtering"
+
 if defined?(Rake.application) && Rake.application.top_level_tasks.grep(/^(default$|test(:|$))/).any?
   ENV["RAILS_ENV"] ||= "test"
 end
@@ -11,6 +13,12 @@ module Rails
       c.integration_tool :test_unit
     end
 
+    initializer "test_unit.line_filtering" do
+      ActiveSupport.on_load(:active_support_test_case) {
+        ActiveSupport::TestCase.extend Rails::LineFiltering
+      }
+    end
+
     rake_tasks do
       load "rails/test_unit/testing.rake"
     end
-- 
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