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