Add SimpleCov coverage tracking with CI job

Author: Fivell

.github/workflows/test.yml

@@ -24,3 +24,19 @@ jobs:
           bundler-cache: true
       - name: Run tests
         run: bundle exec rspec spec
+  coverage:
+    name: Coverage
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.4.0'
+          bundler-cache: true
+      - name: Run tests with coverage
+        run: bundle exec rspec spec
+      - name: Upload coverage
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage
+          path: coverage/

Gemfile

@@ -10,6 +10,7 @@ gem 'sprockets-rails'
 gem 'sass-rails'
 
 group :test do
+  gem 'simplecov', require: false
   gem 'rspec-rails'
   gem 'sqlite3', '~> 2.0'
   gem 'database_cleaner'

spec/spec_helper.rb

@@ -1,3 +1,8 @@
+require 'simplecov'
+SimpleCov.start do
+  add_filter '/spec/'
+end
+
 $LOAD_PATH.unshift(File.dirname(__FILE__))
 $LOAD_PATH << File.expand_path('../support', __FILE__)