Setup rspec tests

.rspec

@@ -0,0 +1 @@
+--require spec_helper

spec/spec_helper.rb

@@ -0,0 +1,13 @@
+require 'uh/wm'
+
+RSpec.configure do |config|
+  config.expect_with :rspec do |expectations|
+    expectations.include_chain_clauses_in_custom_matcher_descriptions = true
+  end
+
+  config.mock_with :rspec do |mocks|
+    mocks.verify_partial_doubles = true
+  end
+
+  config.disable_monkey_patching!
+end

uh-wm.gemspec

@@ -20,4 +20,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'cucumber',  '~> 2.0'
   s.add_development_dependency 'headless',  '~> 1.0'
   s.add_development_dependency 'rake',      '~> 10.4'
+  s.add_development_dependency 'rspec',     '~> 3.2'
 end