Fix coveralls (#83)

Author: Dawa Ometto

Gemfile

@@ -6,9 +6,8 @@ gem 'thin', require: false
 group :development do
   gem 'rspec', '~> 3.9'
   gem 'simplecov'
+  gem 'simplecov-lcov', '~> 0.8.0'
   gem 'rack-test'
 end
 
-gem 'coveralls', '~>0.8.23', require: false
-
 gemspec

LATEST_CHANGES.md

@@ -2,5 +2,6 @@
 
 * Added the `--redis` command line argument.
 * Added Docker support.
+* Use Redis on Heroku by default to avoid flakiness caused by Heroku's dynos.
 * Change default branch name to `main`
 * Do not mail when the diff is empty.

spec/spec_helper.rb

@@ -1,11 +1,14 @@
 require 'simplecov'
+require 'simplecov-lcov'
 require 'fixtures'
 require 'rack/test'
 
 if ENV['CI']
-  require 'coveralls'
-  Coveralls.wear!
+  SimpleCov::Formatter::LcovFormatter.config.report_with_single_file = true
+  SimpleCov::Formatter::LcovFormatter.config.single_report_path = 'coverage/lcov.info'
+  SimpleCov.formatter = SimpleCov::Formatter::LcovFormatter
 end
+SimpleCov.start
 
 ENV['RACK_ENV'] = 'test'