Add code coverage to build.

.gitignore

@@ -0,0 +1 @@
+coverage

Gemfile.lock

@@ -8,6 +8,7 @@ GEM
   remote: http://rubygems.org/
   specs:
     diff-lcs (1.1.3)
+    multi_json (1.0.4)
     rake (0.9.2.2)
     rspec (2.7.0)
       rspec-core (~> 2.7.0)
@@ -17,6 +18,10 @@ GEM
     rspec-expectations (2.7.0)
       diff-lcs (~> 1.1.2)
     rspec-mocks (2.7.0)
+    simplecov (0.5.4)
+      multi_json (~> 1.0.3)
+      simplecov-html (~> 0.5.3)
+    simplecov-html (0.5.3)
     tailor (0.1.5)
       term-ansicolor (>= 1.0.5)
     term-ansicolor (1.0.7)
@@ -28,3 +33,4 @@ DEPENDENCIES
   cane!
   rake
   rspec (~> 2.0)
+  simplecov

Rakefile

@@ -13,7 +13,7 @@ end
 
 desc "Run cane to check quality metrics"
 task :quality do
-  puts `bin/cane --abc-max 10`
+  puts `bin/cane --abc-max 10 --gte coverage/covered_percent,95`
   exit $?.exitstatus unless $?.exitstatus == 0
 end
 

cane.gemspec

@@ -29,4 +29,5 @@ Gem::Specification.new do |gem|
   gem.add_dependency 'tailor'
   gem.add_development_dependency 'rspec', '~> 2.0'
   gem.add_development_dependency 'rake'
+  gem.add_development_dependency 'simplecov'
 end

spec/spec_helper.rb

@@ -6,3 +6,17 @@ def make_file(content)
   tempfile.flush
   tempfile.path
 end
+
+require 'simplecov'
+
+class SimpleCov::Formatter::QualityFormatter
+  def format(result)
+    SimpleCov::Formatter::HTMLFormatter.new.format(result)
+    File.open("coverage/covered_percent", "w") do |f|
+      f.puts result.source_files.covered_percent.to_i
+    end
+  end
+end
+
+SimpleCov.formatter = SimpleCov::Formatter::QualityFormatter
+SimpleCov.start