added RSpec and RSpec on Rails

[rails.git] / vendor / gems / rspec-1.1.2 / lib / spec / rake / verify_rcov.rb

diff --git a/vendor/gems/rspec-1.1.2/lib/spec/rake/verify_rcov.rb b/vendor/gems/rspec-1.1.2/lib/spec/rake/verify_rcov.rb
new file mode 100644 (file)
index 0000000..3328f9e
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+++ b/vendor/gems/rspec-1.1.2/lib/spec/rake/verify_rcov.rb
@@ -0,0 +1,52 @@
+module RCov
+  # A task that can verify that the RCov coverage doesn't
+  # drop below a certain threshold. It should be run after
+  # running Spec::Rake::SpecTask.
+  class VerifyTask < Rake::TaskLib
+    # Name of the task. Defaults to :verify_rcov
+    attr_accessor :name
+    
+    # Path to the index.html file generated by RCov, which
+    # is the file containing the total coverage.
+    # Defaults to 'coverage/index.html'
+    attr_accessor :index_html
+    
+    # Whether or not to output details. Defaults to true.
+    attr_accessor :verbose
+    
+    # The threshold value (in percent) for coverage. If the 
+    # actual coverage is not equal to this value, the task will raise an 
+    # exception. 
+    attr_accessor :threshold
+    
+    # Require the threshold value be met exactly.  This is the default.
+    attr_accessor :require_exact_threshold
+    
+    def initialize(name=:verify_rcov)
+      @name = name
+      @index_html = 'coverage/index.html'
+      @verbose = true
+      @require_exact_threshold = true
+      yield self if block_given?
+      raise "Threshold must be set" if @threshold.nil?
+      define
+    end
+    
+    def define
+      desc "Verify that rcov coverage is at least #{threshold}%"
+      task @name do
+        total_coverage = nil
+
+        File.open(index_html).each_line do |line|
+          if line =~ /<tt class='coverage_total'>(\d+\.\d+)%<\/tt>/
+            total_coverage = eval($1)
+            break
+          end
+        end
+        puts "Coverage: #{total_coverage}% (threshold: #{threshold}%)" if verbose
+        raise "Coverage must be at least #{threshold}% but was #{total_coverage}%" if total_coverage < threshold
+        raise "Coverage has increased above the threshold of #{threshold}% to #{total_coverage}%. You should update your threshold value." if (total_coverage > threshold) and require_exact_threshold
+      end
+    end
+  end
+end