[Brightbox] Use minitest in Brightbox module

Includes a simple test of Compute class.

providers/brightbox/Rakefile

@@ -1 +1,8 @@
 require "bundler/gem_tasks"
+require "rake/testtask"
+
+task :default => :test
+
+Rake::TestTask.new do |t|
+  t.pattern = File.join("test", "**", "*_test.rb")
+end

providers/brightbox/fog-brightbox.gemspec

@@ -24,5 +24,5 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "bundler", "~> 1.3"
   spec.add_development_dependency "rake"
-  spec.add_development_dependency "shindo"
+  spec.add_development_dependency "minitest"
 end

providers/brightbox/test/fog/compute/brightbox_test.rb

@@ -0,0 +1,21 @@
+require "minitest/autorun"
+require "fog/brightbox"
+
+class Fog::Compute::BrightboxTest < Minitest::Test
+  def setup
+    @arguments = {}
+    @service = Fog::Compute::Brightbox.new(@arguments)
+  end
+
+  def test_respond_to_request
+    assert_respond_to @service, :request
+  end
+
+  def test_respond_to_request_access_token
+    assert_respond_to @service, :request_access_token
+  end
+
+  def test_respond_to_wrapped_request
+    assert_respond_to @service, :wrapped_request
+  end
+end