new coverage rake task - finally

1 files changed, 68 insertions, 18 deletions

diff --git a/lib/tasks/coverage.rake b/lib/tasks/coverage.rake
index b70f813..953cf7a 100644
--- a/lib/tasks/coverage.rake
+++ b/lib/tasks/coverage.rake
@@ -1,24 +1,74 @@
-require 'rcov/rcovtask'
-
-namespace :test do
-  namespace :coverage do
-    desc "Delete aggregate coverage data."
-    task(:clean) { rm_f "coverage.data" }
+def run_coverage(files)
+  rm_f "coverage"
+  rm_f "coverage.data"
+  
+  # turn the files we want to run into a string
+  if files.empty?
+    puts "No files were specified for testing"
+    return
   end
-
-  desc 'Aggregate code coverage for unit, functional and integration tests'
-  task :coverage => "test:coverage:clean"
-    %w[unit functional integration].each do |target|
-    namespace :coverage do
-      Rcov::RcovTask.new(target) do |t|
-      t.libs << "test"
-      t.test_files = FileList["test/#{target}/*_test.rb"]
-      t.output_dir = "test/coverage/#{target}"
-      t.verbose = true
-      t.rcov_opts << '--rails --aggregate coverage.data'
+  
+  files = files.join(" ")
+  
+  if PLATFORM =~ /darwin/
+    exclude = '--exclude "gems/*" --exclude "Library/Frameworks/*"'
+  else
+    exclude = '--exclude "rubygems/*"'
+  end
+  # rake test:units:rcov SHOW_ONLY=models,controllers,lib,helpers
+  # rake test:units:rcov SHOW_ONLY=m,c,l,h
+  if ENV['SHOW_ONLY']
+    params = String.new
+    show_only = ENV['SHOW_ONLY'].to_s.split(',').map{|x|x.strip}
+    if show_only.any?
+      reg_exp = []
+      for show_type in show_only
+        reg_exp << case show_type
+        when 'm', 'models' : 'app\/models'
+        when 'c', 'controllers' : 'app\/controllers'
+        when 'h', 'helpers' : 'app\/helpers'
+        when 'l', 'lib' : 'lib'
+        else
+          show_type
+        end
+      end
+      reg_exp.map!{ |m| "(#{m})" }
+      params << " --exclude \"^(?!#{reg_exp.join('|')})\""
     end
+    exclude = exclude + params
+  end
+
+  
+  rcov = "rcov --rails -Ilib:test --sort coverage --text-report #{exclude} --no-validator-links"
+  puts
+  puts
+  puts "Running tests..."
+  cmd = "#{rcov} #{files}"
+  puts cmd
+  sh cmd
+end
+
+namespace :test do
+  
+  desc "Measures unit, functional, and integration test coverage"
+  task :coverage do
+    run_coverage Dir["test/unit/**/*.rb", "test/functional/**/*.rb", "test/integration/**/*.rb"]
   end
   
-  task :coverage => "test:coverage:#{target}"
+  namespace :coverage do
+    desc "Runs coverage on unit tests"
+    task :units do
+      run_coverage Dir["test/unit/**/*.rb"]
+    end
+    
+    desc "Runs coverage on functional tests"
+    task :functionals do
+      run_coverage Dir["test/functional/**/*.rb"]
+    end
+    
+    desc "Runs coverage on integration tests"
+    task :integration do
+      run_coverage Dir["test/integration/**/*.rb"]
+    end
   end
 end
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