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#####################################################################
### S U B V E R S I O N T A S K S A N D H E L P E R S
#####################################################################
require 'rake/tasklib'
#
# Work around the inexplicable behaviour of the original RDoc::VerifyTask, which
# errors if your coverage isn't *exactly* the threshold.
#
# 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
COVERAGE_PERCENTAGE_PATTERN =
%r{<tt class='coverage_code'>(\d+\.\d+)%</tt>}
# 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 )
@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
if match = File.read( index_html ).match( COVERAGE_PERCENTAGE_PATTERN )
total_coverage = Float( match[1] )
else
raise "Couldn't find the coverage percentage in #{index_html}"
end
puts "Coverage: #{total_coverage}% (threshold: #{threshold}%)" if verbose
if total_coverage < threshold
raise "Coverage must be at least #{threshold}% but was #{total_coverage}%"
end
end
end
end
# vim: set nosta noet ts=4 sw=4: