Update gem tooling

** Why are these changes being introduced:

* This repository does not yet have our pull request template, nor does
  it take advantage of our shared ruby workflows in Github actions.

** Relevant ticket(s):

* https://mitlibraries.atlassian.net/browse/engx-175

** How does this address that need:

* This copies the pull request template and workflow yml file from
  another rails app, to bring this in line with our other projects.
* Adds and integrates simplecov so the shared workflow does not
  error.

** Document any side effects to this change:

* The theme gem now has test coverage

Author: matt-bernhardt

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,26 @@
+#### Developer
+
+- [ ] All new ENV is documented in README
+- [ ] All new ENV has been added to Heroku Pipeline, Staging and Prod
+- [ ] ANDI or Wave has been run in accordance to
+      [our guide](https://mitlibraries.github.io/guides/basics/a11y.html) and
+      all issues introduced by these changes have been resolved or opened as new
+      issues (link to those issues in the Pull Request details above)
+- [ ] Stakeholder approval has been confirmed (or is not needed)
+
+#### Code Reviewer
+
+- [ ] The commit message is clear and follows our guidelines
+      (not just this pull request message)
+- [ ] There are appropriate tests covering any new functionality
+- [ ] The documentation has been updated or is unnecessary
+- [ ] The changes have been verified
+- [ ] New dependencies are appropriate or there were no changes
+
+#### Requires database migrations?
+
+YES | NO
+
+#### Includes new or updated dependencies?
+
+YES | NO

.github/workflows/mit-libraries-ruby-ci.yml

@@ -0,0 +1,10 @@
+name: CI
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  shared:
+    uses: mitlibraries/.github/.github/workflows/ruby-shared-ci.yml@main

.gitignore

@@ -1,4 +1,5 @@
 /.bundle/
+/coverage/
 /doc/
 /log/*.log
 /pkg/

.ruby-version

@@ -0,0 +1 @@
+3.1.2

Gemfile.lock

@@ -80,6 +80,7 @@ GEM
       irb (>= 1.3.6)
       reline (>= 0.3.1)
     digest (3.1.0)
+    docile (1.4.0)
     erubi (1.11.0)
     ffi (1.15.5)
     globalid (1.0.0)
@@ -156,6 +157,13 @@ GEM
       sprockets (> 3.0)
       sprockets-rails
       tilt
+    simplecov (0.21.2)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.12.3)
+    simplecov-lcov (0.8.0)
+    simplecov_json_formatter (0.1.4)
     sprockets (4.1.1)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
@@ -181,6 +189,8 @@ PLATFORMS
 DEPENDENCIES
   debug (~> 1)
   mitlibraries-theme!
+  simplecov (~> 0)
+  simplecov-lcov (~> 0)
   sprockets-rails
   sqlite3
 

mitlibraries-theme.gemspec

@@ -22,6 +22,8 @@ Gem::Specification.new do |spec|
   end
 
   spec.add_development_dependency 'debug', '~> 1'
+  spec.add_development_dependency 'simplecov', '~> 0'
+  spec.add_development_dependency 'simplecov-lcov', '~> 0'
   spec.add_dependency 'rails', '>= 6', '< 8'
   spec.add_dependency 'sassc-rails', '~> 2'
 end

test/test_helper.rb

@@ -1,6 +1,16 @@
 # Configure Rails Environment
 ENV["RAILS_ENV"] = "test"
 
+require 'simplecov'
+require 'simplecov-lcov'
+SimpleCov::Formatter::LcovFormatter.config.report_with_single_file = true
+SimpleCov::Formatter::LcovFormatter.config.lcov_file_name = 'coverage.lcov'
+SimpleCov.formatters = [
+  SimpleCov::Formatter::HTMLFormatter,
+  SimpleCov.formatter = SimpleCov::Formatter::LcovFormatter
+]
+SimpleCov.start('rails')
+
 require_relative "../test/dummy/config/environment"
 ActiveRecord::Migrator.migrations_paths = [File.expand_path("../test/dummy/db/migrate", __dir__)]
 ActiveRecord::Migrator.migrations_paths << File.expand_path("../db/migrate", __dir__)