Add Simplecov

.simplecov

@@ -0,0 +1,6 @@
+SimpleCov.start do
+  add_filter '/features/'
+  add_filter '/spec/'
+  add_filter '/vendor'
+  add_filter '/step_definitions/'
+end

Gemfile

@@ -9,6 +9,7 @@ gem "cucumber", "~> 1.3.1"
 gem "fivemat"
 gem "aruba",    "~> 0.5.1"
 gem "rspec",    "~> 2.12"
+gem "simplecov"
 
 # Optional middleman dependencies, included for tests
 gem "haml", "~> 4.0.0", :require => false # Make sure to use Haml 4 for tests

middleman-core/features/support/env.rb

@@ -1,3 +1,5 @@
+require 'simplecov'
+
 ENV["TEST"] = "true"
 ENV["AUTOLOAD_SPROCKETS"] = "false"
 

middleman-core/spec/spec_helper.rb

@@ -0,0 +1 @@
+require 'simplecov'