Bundle with support for SimpleCov

Add support for SimpleCov in `spec_helper.rb` so that it is loaded only when the COVERAGE environment variable is present

Author: etagwerker

Gemfile.lock

@@ -1,44 +1,47 @@
 PATH
   remote: .
   specs:
-    next_rails (1.0.0)
+    next_rails (1.0.2)
       actionview
       colorize (>= 0.8.1)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    actionview (5.2.3)
-      activesupport (= 5.2.3)
+    actionview (6.0.2.1)
+      activesupport (= 6.0.2.1)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activesupport (5.2.3)
+      rails-html-sanitizer (~> 1.1, >= 1.2.0)
+    activesupport (6.0.2.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    builder (3.2.3)
+      zeitwerk (~> 2.2)
+    builder (3.2.4)
     colorize (0.8.1)
     concurrent-ruby (1.1.5)
-    crass (1.0.4)
+    crass (1.0.6)
     diff-lcs (1.3)
-    erubi (1.8.0)
-    i18n (1.6.0)
+    docile (1.3.2)
+    erubi (1.9.0)
+    i18n (1.8.2)
       concurrent-ruby (~> 1.0)
-    loofah (2.2.3)
+    json (2.3.0)
+    loofah (2.4.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mini_portile2 (2.4.0)
-    minitest (5.11.3)
-    nokogiri (1.10.3)
+    minitest (5.14.0)
+    nokogiri (1.10.7)
       mini_portile2 (~> 2.4.0)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.0.4)
-      loofah (~> 2.2, >= 2.2.2)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
     rake (10.5.0)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)
@@ -53,10 +56,16 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.2)
+    simplecov (0.17.1)
+      docile (~> 1.1)
+      json (>= 1.8, < 3)
+      simplecov-html (~> 0.10.0)
+    simplecov-html (0.10.2)
     thread_safe (0.3.6)
     timecop (0.9.1)
-    tzinfo (1.2.5)
+    tzinfo (1.2.6)
       thread_safe (~> 0.1)
+    zeitwerk (2.2.2)
 
 PLATFORMS
   ruby
@@ -66,7 +75,8 @@ DEPENDENCIES
   next_rails!
   rake (~> 10.0)
   rspec (~> 3.0)
+  simplecov (~> 0.17.1)
   timecop (~> 0.9.1)
 
 BUNDLED WITH
-   1.17.2
+   1.17.3

spec/spec_helper.rb

@@ -1,5 +1,23 @@
 require "bundler/setup"
 require "next_rails"
+if ENV['COVERAGE'] == 'true'
+  require 'simplecov'
+  SimpleCov.start do
+    # Disambiguates individual test runs
+    command_name "Job #{ENV["TEST_ENV_NUMBER"]}" if ENV["TEST_ENV_NUMBER"]
+
+    if ENV['CI']
+      formatter SimpleCov::Formatter::SimpleFormatter
+    else
+      formatter SimpleCov::Formatter::MultiFormatter.new([
+        SimpleCov::Formatter::SimpleFormatter,
+        SimpleCov::Formatter::HTMLFormatter
+      ])
+    end
+
+    track_files "lib/**/*.rb"
+  end
+end
 
 RSpec.configure do |config|
   # Enable flags like --only-failures and --next-failure