Add code coverage (#14)

.github/workflows/ci.yml

@@ -32,34 +32,7 @@ jobs:
       - name: Set up database schema
         run: bin/rails db:schema:load
       - name: Run tests
-        run: bin/rails test
-
-  system-tests:
-    runs-on: ubuntu-latest
-    services:
-      postgres:
-        image: postgres:16.4-alpine
-        ports:
-          - "5432:5432"
-        env:
-          POSTGRES_DB: opengas_test
-          POSTGRES_USER: opengas
-          POSTGRES_PASSWORD: opengas
-    env:
-      RAILS_ENV: test
-      DATABASE_URL: "postgres://opengas:opengas@localhost:5432/opengas_test"
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-      - name: Install Ruby and gems
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: 3.3.5
-          bundler-cache: true
-      - name: Set up database schema
-        run: bin/rails db:schema:load
-      - name: Run tests
-        run: bin/rails test:system
+        run: bin/rails test:all
 
   lint:
     runs-on: ubuntu-latest

.gitignore

@@ -38,4 +38,9 @@
 /app/assets/builds/*
 !/app/assets/builds/.keep
 
+# coverage
+/coverage/*
+!/coverage
+!/coverage/.keep
+
 .DS_Store

Gemfile

@@ -83,4 +83,5 @@ end
 group :test do
   gem 'capybara'
   gem 'selenium-webdriver'
+  gem 'simplecov', require: false
 end

Gemfile.lock

@@ -148,6 +148,7 @@ GEM
       warden (~> 1.2.3)
     devise-i18n (1.12.1)
       devise (>= 4.9.0)
+    docile (1.4.1)
     dotenv (2.8.1)
     dotenv-rails (2.8.1)
       dotenv (= 2.8.1)
@@ -419,6 +420,12 @@ GEM
     simple_form (5.3.1)
       actionpack (>= 5.2)
       activemodel (>= 5.2)
+    simplecov (0.22.0)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.13.1)
+    simplecov_json_formatter (0.1.4)
     solid_queue (0.5.0)
       activejob (>= 7.1)
       activerecord (>= 7.1)
@@ -539,6 +546,7 @@ DEPENDENCIES
   selenium-webdriver
   simple_calendar
   simple_form (~> 5.3)
+  simplecov
   solid_queue (~> 0.5.0)
   sprockets-rails
   sqlite3 (~> 1.4)

config/environments/test.rb

@@ -17,7 +17,7 @@
   # this is usually not necessary, and can slow down your test suite. However, it's
   # recommended that you enable it in continuous integration systems to ensure eager
   # loading is working properly before deploying your code.
-  config.eager_load = ENV['CI'].present?
+  config.eager_load = true
 
   # Configure public file server for tests with Cache-Control for performance.
   config.public_file_server.headers = { 'Cache-Control' => "public, max-age=#{1.hour.to_i}" }

test/test_helper.rb

@@ -1,5 +1,8 @@
 # frozen_string_literal: true
 
+require 'simplecov'
+SimpleCov.start
+
 ENV['RAILS_ENV'] ||= 'test'
 require_relative '../config/environment'
 require 'rails/test_help'