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Circle CIで一定量のカバレッジに行かなかったらテストを落とす。

Last updated at Posted at 2014-05-27

CircleCIで一定量のcoverageに達しない場合はテストを落として、デプロイしない用にする。

前提

  • railsで開発を行っている。
  • gem simplecovを導入している。
  • rspecを導入している(他のテストツールでも多分大丈夫)

CircleCI自体はそのような機能は持っていない。下記問い合わせの返信内容。

We don't have anything built-in to prevent deploys when the test coverage is low. However, it looks like you're using simlecov. You can configure simplecov to fail the tests if the coverage is not high enough: https://github.com/colszowka/simplecov#minimum-coverage. We won't deploy if the tests fail.

解決方法

SimpleCovの設定でminimum_covarageを指定する。
SimpleCov.minimum_coverage 90

具体的には、spec#spec_helper.rbに下記のように設定した。

spec_helper.rb
require 'simplecov'
require 'simplecov-rcov'
if ENV['CIRCLE_ARTIFACTS']
  dir = File.join("..", "..", "..", ENV['CIRCLE_ARTIFACTS'], "coverage")
  SimpleCov.coverage_dir(dir)
end

SimpleCov.minimum_coverage 90
SimpleCov.formatter = SimpleCov::Formatter::RcovFormatter
SimpleCov.start do
  add_filter 'spec'
  add_filter 'vendor'
  add_filter 'features'
end

ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
require 'rspec/autorun'
require 'factory_girl'
~
~
~

circle CIでcovarageが低いと下記の用にエラーが出る。その後デプロイはされない。(minimum_coverageを100に設定してる)

Coverage (95.24%) is below the expected minimum coverage (100.00%).
((bundle exec rspec "" "" "spec" --format "progress")) returned exit code 2

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