Make "rake test" and "rake rdoc" work.

Rakefile

@@ -1,2 +1,21 @@
 #!/usr/bin/env rake
 require "bundler/gem_tasks"
+
+gemspec = Bundler::GemHelper.gemspec
+
+require 'rake/testtask'
+Rake::TestTask.new(:test) do |test|
+  test.libs << 'test'
+  test.test_files = gemspec.test_files
+  test.verbose = true
+end
+
+require 'rdoc/task'
+Rake::RDocTask.new do |rdoc|
+  rdoc.rdoc_dir = 'rdoc'
+  rdoc.title = "#{gemspec.name} #{gemspec.version}"
+  rdoc.rdoc_files.include(gemspec.extra_rdoc_files)
+  rdoc.rdoc_files.include('lib/**/*.rb')
+end
+
+task :default => :test

unf.gemspec

@@ -14,7 +14,7 @@ to Ruby/JRuby.
 
   gem.files         = `git ls-files`.split("\n")
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
-  gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
+  gem.test_files    = gem.files.grep(%r{^(test|spec|features)/.*\.rb})
   gem.name          = "unf"
   gem.require_paths = ["lib"]
   gem.version       = UNF::VERSION