* Support test coverage report on GH Action

Also switch back from codecov to coveralls

Author: PikachuEXE

Gemfile

@@ -4,5 +4,3 @@ source "https://rubygems.org"
 
 # Specify your gem's dependencies in rspec-json_matchers.gemspec
 gemspec
-
-gem "codecov", require: false, group: :test

README.md

@@ -16,8 +16,8 @@ You can read [the story of this project](https://github.com/PikachuEXE/rspec-jso
 [![Gem Version](http://img.shields.io/gem/v/rspec-json_matchers.svg?style=flat-square)](http://badge.fury.io/rb/rspec-json_matchers)
 [![License](https://img.shields.io/github/license/PikachuEXE/rspec-json_matchers.svg?style=flat-square)](http://badge.fury.io/rb/rspec-json_matchers)
 
+[![Coverage Status](http://img.shields.io/coveralls/PikachuEXE/rspec-json_matchers.svg?style=flat-square)](https://coveralls.io/r/PikachuEXE/rspec-json_matchers)
 [![Code Climate](https://img.shields.io/codeclimate/maintainability/PikachuEXE/rspec-json_matchers.svg?style=flat-square)](https://codeclimate.com/github/PikachuEXE/rspec-json_matchers)
-[![Coverage Status](https://img.shields.io/codecov/c/github/PikachuEXE/rspec-json_matchers.svg?style=flat-square)](https://codecov.io/gh/PikachuEXE/rspec-json_matchers)
 [![Inch CI](https://inch-ci.org/github/PikachuEXE/rspec-json_matchers.svg?branch=master)](https://inch-ci.org/github/PikachuEXE/rspec-json_matchers)
 
 > The above badges are generated by https://shields.io/

rspec-json_matchers.gemspec

@@ -31,13 +31,11 @@ Gem::Specification.new do |spec|
   spec.add_dependency "rspec", "~> 3.0"
 
   spec.add_development_dependency "rake", ">= 10.0", "<= 14.0"
-
   spec.add_development_dependency "appraisal", "~> 2.0"
-
   spec.add_development_dependency "rspec-its", "~> 1.0"
-
+  spec.add_development_dependency "simplecov", ">= 0.21"
+  spec.add_development_dependency "simplecov-lcov", ">= 0.8"
   spec.add_development_dependency "gem-release", "~> 2.0"
-
   spec.add_development_dependency "inch", "~> 0.6"
 
   spec.required_ruby_version = ">= 2.3.0"

spec/spec_helper.rb

@@ -1,16 +1,26 @@
 # frozen_string_literal: true
 
-$LOAD_PATH.unshift(File.expand_path('../lib', __dir__))
-require "rspec-json_matchers"
-
-if ENV["TRAVIS"]
+if ENV["COVERALLS"]
   require "simplecov"
-  SimpleCov.start
+  require "simplecov-lcov"
+
+  SimpleCov::Formatter::LcovFormatter.config do |c|
+    c.report_with_single_file = true
+    c.single_report_path = "coverage/lcov.info"
+  end
 
-  require "codecov"
-  SimpleCov.formatter = SimpleCov::Formatter::Codecov
+  SimpleCov.formatters = SimpleCov::Formatter::MultiFormatter.new(
+    [SimpleCov::Formatter::HTMLFormatter, SimpleCov::Formatter::LcovFormatter]
+  )
+
+  SimpleCov.start do
+    add_filter "spec/"
+  end
 end
 
+$LOAD_PATH.unshift(File.expand_path('../lib', __dir__))
+require "rspec-json_matchers"
+
 RSpec.configure do |config|
   config.include RSpec::JsonMatchers::Matchers
 end