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Diffstat (limited to 'test/lib/spec/rake/verify_rcov.rb')
| -rw-r--r-- | test/lib/spec/rake/verify_rcov.rb | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/test/lib/spec/rake/verify_rcov.rb b/test/lib/spec/rake/verify_rcov.rb new file mode 100644 index 000000000..a05153e99 --- /dev/null +++ b/test/lib/spec/rake/verify_rcov.rb @@ -0,0 +1,47 @@ +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 + + def initialize(name=:verify_rcov) + @name = name + @index_html = 'coverage/index.html' + @verbose = 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.*>(\d+\.\d+)%<\/tt> <\/td>/ + 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 + end + end + end +end
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