Merge pull request #26515 from grosser/grosser/after_run

support minitest after_run

railties/CHANGELOG.md

+*   Run `Minitest.after_run` hooks when running `rails test`.
+
+    *Michael Grosser*
+
 *   Run `before_configuration` callbacks as soon as application constant
     inherits from `Rails::Application`.
 

railties/lib/rails/commands/test.rb

 require "rails/test_unit/minitest_plugin"
 
 if defined?(ENGINE_ROOT)
-  $: << File.expand_path("test", ENGINE_ROOT)
+  $LOAD_PATH << File.expand_path("test", ENGINE_ROOT)
 else
-  $: << File.expand_path("../../test", APP_PATH)
+  $LOAD_PATH << File.expand_path("../../test", APP_PATH)
 end
 
-exit Minitest.run(ARGV)
+require "minitest/autorun"

railties/test/application/test_test.rb

@@ -12,7 +12,7 @@ def teardown
       teardown_app
     end
 
-    test "truth" do
+    test "simple successful test" do
       app_file "test/unit/foo_test.rb", <<-RUBY
         require 'test_helper'
 
@@ -26,6 +26,38 @@ def test_truth
       assert_successful_test_run "unit/foo_test.rb"
     end
 
+    test "after_run" do
+      app_file "test/unit/foo_test.rb", <<-RUBY
+        require 'test_helper'
+
+        Minitest.after_run { puts "WORLD" }
+        Minitest.after_run { puts "HELLO" }
+
+        class FooTest < ActiveSupport::TestCase
+          def test_truth
+            assert true
+          end
+        end
+      RUBY
+
+      result = assert_successful_test_run "unit/foo_test.rb"
+      assert_equal ["HELLO", "WORLD"], result.scan(/HELLO|WORLD/) # only once and in correct order
+    end
+
+    test "simple failed test" do
+      app_file "test/unit/foo_test.rb", <<-RUBY
+        require 'test_helper'
+
+        class FooTest < ActiveSupport::TestCase
+          def test_truth
+            assert false
+          end
+        end
+      RUBY
+
+      assert_unsuccessful_run "unit/foo_test.rb", "Failed assertion"
+    end
+
     test "integration test" do
       controller "posts", <<-RUBY
         class PostsController < ActionController::Base