Turn system testing into it's own gem and rename

Renames `Rails::SystemTestCase` to `ActionSystemTest` and moves it to a
gem under the Rails name.

We need to name the class `ActionSystemTestCase` because the gem expects
a module but tests themselves expect a class.

Adds MIT-LICENSE, CHANGELOG, and README for the future.

1 files changed, 32 insertions, 0 deletions

diff --git a/actionsystemtest/Rakefile b/actionsystemtest/Rakefile
new file mode 100644
index 0000000000..8b07e8f4af
--- /dev/null
+++ b/actionsystemtest/Rakefile
@@ -0,0 +1,32 @@
+require "rake/testtask"
+
+test_files = Dir.glob("test/**/*_test.rb")
+
+desc "Default Task"
+task default: :test
+
+task :package
+
+# Run the unit tests
+Rake::TestTask.new do |t|
+  t.libs << "test"
+  t.test_files = test_files
+
+  t.warning = true
+  t.verbose = true
+  t.ruby_opts = ["--dev"] if defined?(JRUBY_VERSION)
+end
+
+namespace :test do
+  task :isolated do
+    test_files.all? do |file|
+      sh(Gem.ruby, "-w", "-Ilib:test", file)
+    end || raise("Failures")
+  end
+end
+
+task :lines do
+  load File.expand_path("..", File.dirname(__FILE__)) + "/tools/line_statistics"
+  files = FileList["lib/**/*.rb"]
+  CodeTools::LineStatistics.new(files).print_loc
+end