Wrap isolated test runner in a test suite

2 files changed, 23 insertions, 8 deletions

diff --git a/activesupport/Rakefile b/activesupport/Rakefile
index 8d2d207225..c27167287d 100644
--- a/activesupport/Rakefile
+++ b/activesupport/Rakefile
@@ -15,17 +15,17 @@ RUBY_FORGE_PROJECT = "activesupport"
 RUBY_FORGE_USER    = "webster132"
 
 task :default => :test
-Rake::TestTask.new { |t| 
-  t.libs << "test"
+Rake::TestTask.new do |t|
+  t.libs << 'test'
   t.pattern = 'test/**/*_test.rb'
   t.verbose = true
   t.warning = true
-}
-task :isolated_test do 
-  ruby = File.join(*RbConfig::CONFIG.values_at('bindir', 'RUBY_INSTALL_NAME'))
-  Dir['test/**/*_test.rb'].all? do |file|
-    system(ruby, '-w', '-Ilib:test', file)
-  end or raise "Failures"
+end
+
+namespace :test do
+  Rake::TestTask.new(:isolated) do |t|
+    t.pattern = 'test/ts_isolated.rb'
+  end
 end
 
 # Create compressed packages
diff --git a/activesupport/test/ts_isolated.rb b/activesupport/test/ts_isolated.rb
new file mode 100644
index 0000000000..9378a13766
--- /dev/null
+++ b/activesupport/test/ts_isolated.rb
@@ -0,0 +1,15 @@
+require 'test/unit'
+require 'rbconfig'
+require 'active_support/core_ext/kernel/reporting'
+
+class TestIsolated < Test::Unit::TestCase
+  ruby = File.join(*RbConfig::CONFIG.values_at('bindir', 'RUBY_INSTALL_NAME'))
+
+  Dir["#{File.dirname(__FILE__)}/**/*_test.rb"].each do |file|
+    define_method("test #{file}") do
+      command = "#{ruby} -Ilib:test #{file}"
+      silence_stderr { `#{command}` }
+      assert_equal 0, $?.to_i, command
+    end
+  end
+end