From 6a099b168216db45be2d95aa51eac62100b62058 Mon Sep 17 00:00:00 2001
From: Matthew Draper <matthew@trebex.net>
Date: Sat, 2 Sep 2017 23:15:43 +0930
Subject: [PATCH] Run all railties tests before reporting failure

---
 railties/Rakefile | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/railties/Rakefile b/railties/Rakefile
index 500fc88fbb..be7d9f96a2 100644
--- a/railties/Rakefile
+++ b/railties/Rakefile
@@ -28,6 +28,8 @@ namespace :test do
     require "bundler/setup" unless defined?(Bundler)
     require "active_support"
 
+    failing_files = []
+
     dirs = (ENV["TEST_DIR"] || ENV["TEST_DIRS"] || "**").split(",")
     test_files = dirs.map { |dir| "test/#{dir}/*_test.rb" }
     Dir[*test_files].each do |file|
@@ -46,9 +48,20 @@ namespace :test do
       Process.waitpid fork { ARGV.clear; load file }
 
       unless $?.success?
-        raise "Command failed with status (#{$?.exitstatus}): #{fake_command}"
+        failing_files << file
       end
     end
+
+    unless failing_files.empty?
+      puts
+      puts "Failed in:"
+      failing_files.each do |file|
+        puts "  #{file}"
+      end
+      puts
+
+      raise "Failure in isolated test runner"
+    end
   end
 end