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Add test coverage; account for no artifacts on CI
Drop coverage a bit for JRuby and Rubinius because they don't generate the same Coverage as CRuby
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# https://github.com/colszowka/simplecov#using-simplecov-for-centralized-config | ||
# see https://github.com/colszowka/simplecov/blob/master/lib/simplecov/defaults.rb | ||
# vim: set ft=ruby | ||
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## DEFINE VARIABLES | ||
@minimum_coverage = ENV.fetch('COVERAGE_MINIMUM') { | ||
case (defined?(RUBY_ENGINE) && RUBY_ENGINE) || "ruby" | ||
when 'jruby', 'rbx' | ||
96.0 | ||
else | ||
98.3 | ||
end | ||
}.to_f.round(2) | ||
# rubocop:disable Style/DoubleNegation | ||
ENV['FULL_BUILD'] ||= ENV['CI'] | ||
@running_ci = !!(ENV['FULL_BUILD'] =~ /\Atrue\z/i) | ||
@generate_report = @running_ci || !!(ENV['COVERAGE'] =~ /\Atrue\z/i) | ||
@output = STDOUT | ||
# rubocop:enable Style/DoubleNegation | ||
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## CONFIGURE SIMPLECOV | ||
SimpleCov.pid = $$ # In case there's any forking | ||
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SimpleCov.profiles.define 'app' do | ||
coverage_dir 'coverage' | ||
load_profile 'test_frameworks' | ||
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add_group 'Libraries', 'lib' | ||
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add_group 'Long files' do |src_file| | ||
src_file.lines.count > 100 | ||
end | ||
class MaxLinesFilter < SimpleCov::Filter | ||
def matches?(source_file) | ||
source_file.lines.count < filter_argument | ||
end | ||
end | ||
add_group 'Short files', MaxLinesFilter.new(5) | ||
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# Exclude these paths from analysis | ||
add_filter '/config/' | ||
add_filter '/db/' | ||
add_filter 'tasks' | ||
end | ||
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## START TRACKING COVERAGE (before activating SimpleCov) | ||
require 'coverage' | ||
Coverage.start | ||
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## ADD SOME CUSTOM REPORTING AT EXIT | ||
SimpleCov.at_exit do | ||
header = "#{'*' * 20} SimpleCov Results #{'*' * 20}" | ||
@output.puts | ||
@output.puts header | ||
@output.puts SimpleCov.result.format! | ||
percent = Float(SimpleCov.result.covered_percent) | ||
if percent < @minimum_coverage | ||
@output.puts "Spec coverage was not high enough: "\ | ||
"#{percent.round(2)} is < #{@minimum_coverage}%\n" | ||
exit 1 if @generate_report | ||
else | ||
@output.puts "Nice job! Spec coverage (#{percent.round(2)}) "\ | ||
"is still at or above #{@minimum_coverage}%\n" | ||
end | ||
@output.puts | ||
@output.puts '*' * header.size | ||
end | ||
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## CAPTURE CONFIG IN CLOSURE 'AppCoverage.start' | ||
## to defer running until test/test_helper.rb is loaded. | ||
# rubocop:disable Style/MultilineBlockChain | ||
AppCoverage = Class.new do | ||
def initialize(&block) | ||
@block = block | ||
end | ||
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def start | ||
@block.call | ||
end | ||
end.new do | ||
SimpleCov.start 'app' | ||
if @generate_report | ||
if @running_ci | ||
@output.puts '[COVERAGE] Running with SimpleCov Simple Formatter' | ||
formatters = [SimpleCov::Formatter::SimpleFormatter] | ||
else | ||
@output.puts '[COVERAGE] Running with SimpleCov HTML Formatter' | ||
formatters = [SimpleCov::Formatter::HTMLFormatter] | ||
end | ||
else | ||
formatters = [] | ||
end | ||
SimpleCov.formatters = formatters | ||
end | ||
# rubocop:enable Style/MultilineBlockChain |
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# https://github.com/colszowka/simplecov/pull/400 | ||
# https://github.com/ruby/ruby/blob/trunk/lib/English.rb | ||
unless defined?(English) | ||
# The exception object passed to +raise+. | ||
alias $ERROR_INFO $! | ||
end |
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