Add coverage (#18)

* add coverage

* add coveralls

* add coveralls action to workflow

* add badges

* fix newline

.github/workflows/ruby.yml

@@ -25,12 +25,18 @@ jobs:
     - uses: actions/checkout@v2
       with:
         submodules: true
+
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}
         bundler-cache: true # install and cache dependencies
+
     - name: Build parser
       run: bundle exec racc lib/kdl/kdl.yy
+
     - name: Run tests
       run: bundle exec rake test
+
+    - name: Report Coveralls
+      uses: coverallsapp/github-action@v2

Gemfile

@@ -4,4 +4,9 @@ source "https://rubygems.org"
 gemspec
 
 gem "rake", "~> 12.0"
-gem "minitest", "~> 5.0"
+
+group :test do
+  gem "minitest", "~> 5.0"
+  gem "simplecov", require: false
+  gem "coveralls_reborn", require: false
+end

README.md

@@ -1,6 +1,8 @@
 # KDL
 
+[![Gem Version](https://badge.fury.io/rb/kdl.svg)](https://badge.fury.io/rb/kdl)
 [![Actions Status](https://github.com/danini-the-panini/kdl-rb/workflows/Ruby/badge.svg)](https://github.com/danini-the-panini/kdl-rb/actions)
+[![Coverage Status](https://coveralls.io/repos/github/danini-the-panini/kdl-rb/badge.svg?branch=main)](https://coveralls.io/github/danini-the-panini/kdl-rb?branch=main)
 
 This is a Ruby implementation of the [KDL Document Language](https://kdl.dev)
 

test/test_helper.rb

@@ -1,3 +1,11 @@
+require "simplecov"
+require "coveralls"
+SimpleCov.formatters = [
+  SimpleCov::Formatter::HTMLFormatter,
+  Coveralls::SimpleCov::Formatter
+]
+SimpleCov.start
+
 $LOAD_PATH.unshift File.expand_path("../lib", __dir__)
 require "kdl"