Add support for and start testing against Ruby 4

https://www.ruby-lang.org/en/news/2025/12/25/ruby-4-0-0-released/
https://www.ruby-lang.org/en/news/2026/01/13/ruby-4-0-1-released/

Author: larouxn

.github/workflows/tests.yml

@@ -9,13 +9,13 @@ jobs:
 
     strategy:
       matrix:
-        ruby: ['3.1', '3.2', '3.3', '3.4']
+        ruby: ['3.1', '3.2', '3.3', '3.4', '4.0']
 
     name: Ruby ${{ matrix.ruby }}
     steps:
     - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     - name: Set up Ruby ${{ matrix.ruby }}
-      uses: ruby/setup-ruby@e34163cd15f4bb403dcd72d98e295997e6a55798 # v1.238.0
+      uses: ruby/setup-ruby@4fc31e1c823882afd7ef55985266a526c589de90 # v1.282.0
       with:
         ruby-version: ${{ matrix.ruby }}
     - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3

Gemfile

@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-gem "pry-byebug", require: false
+gem "debug", require: false
 gem "rubocop", require: false
 gem "rubocop-shopify", ">=2.8.0", require: false
 gem "rubocop-performance", require: false

Gemfile.lock

@@ -7,66 +7,68 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (7.2.2.1)
-      actionpack (= 7.2.2.1)
-      activesupport (= 7.2.2.1)
+    actioncable (7.2.3)
+      actionpack (= 7.2.3)
+      activesupport (= 7.2.3)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
       zeitwerk (~> 2.6)
-    actionmailbox (7.2.2.1)
-      actionpack (= 7.2.2.1)
-      activejob (= 7.2.2.1)
-      activerecord (= 7.2.2.1)
-      activestorage (= 7.2.2.1)
-      activesupport (= 7.2.2.1)
+    actionmailbox (7.2.3)
+      actionpack (= 7.2.3)
+      activejob (= 7.2.3)
+      activerecord (= 7.2.3)
+      activestorage (= 7.2.3)
+      activesupport (= 7.2.3)
       mail (>= 2.8.0)
-    actionmailer (7.2.2.1)
-      actionpack (= 7.2.2.1)
-      actionview (= 7.2.2.1)
-      activejob (= 7.2.2.1)
-      activesupport (= 7.2.2.1)
+    actionmailer (7.2.3)
+      actionpack (= 7.2.3)
+      actionview (= 7.2.3)
+      activejob (= 7.2.3)
+      activesupport (= 7.2.3)
       mail (>= 2.8.0)
       rails-dom-testing (~> 2.2)
-    actionpack (7.2.2.1)
-      actionview (= 7.2.2.1)
-      activesupport (= 7.2.2.1)
+    actionpack (7.2.3)
+      actionview (= 7.2.3)
+      activesupport (= 7.2.3)
+      cgi
       nokogiri (>= 1.8.5)
       racc
-      rack (>= 2.2.4, < 3.2)
+      rack (>= 2.2.4, < 3.3)
       rack-session (>= 1.0.1)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
       useragent (~> 0.16)
-    actiontext (7.2.2.1)
-      actionpack (= 7.2.2.1)
-      activerecord (= 7.2.2.1)
-      activestorage (= 7.2.2.1)
-      activesupport (= 7.2.2.1)
+    actiontext (7.2.3)
+      actionpack (= 7.2.3)
+      activerecord (= 7.2.3)
+      activestorage (= 7.2.3)
+      activesupport (= 7.2.3)
       globalid (>= 0.6.0)
       nokogiri (>= 1.8.5)
-    actionview (7.2.2.1)
-      activesupport (= 7.2.2.1)
+    actionview (7.2.3)
+      activesupport (= 7.2.3)
       builder (~> 3.1)
+      cgi
       erubi (~> 1.11)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-    activejob (7.2.2.1)
-      activesupport (= 7.2.2.1)
+    activejob (7.2.3)
+      activesupport (= 7.2.3)
       globalid (>= 0.3.6)
-    activemodel (7.2.2.1)
-      activesupport (= 7.2.2.1)
-    activerecord (7.2.2.1)
-      activemodel (= 7.2.2.1)
-      activesupport (= 7.2.2.1)
+    activemodel (7.2.3)
+      activesupport (= 7.2.3)
+    activerecord (7.2.3)
+      activemodel (= 7.2.3)
+      activesupport (= 7.2.3)
       timeout (>= 0.4.0)
-    activestorage (7.2.2.1)
-      actionpack (= 7.2.2.1)
-      activejob (= 7.2.2.1)
-      activerecord (= 7.2.2.1)
-      activesupport (= 7.2.2.1)
+    activestorage (7.2.3)
+      actionpack (= 7.2.3)
+      activejob (= 7.2.3)
+      activerecord (= 7.2.3)
+      activesupport (= 7.2.3)
       marcel (~> 1.0)
-    activesupport (7.2.2.1)
+    activesupport (7.2.3)
       base64
       benchmark (>= 0.3)
       bigdecimal
@@ -83,8 +85,7 @@ GEM
     benchmark (0.4.0)
     bigdecimal (3.3.1)
     builder (3.3.0)
-    byebug (12.0.0)
-    coderay (1.1.3)
+    cgi (0.5.1)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.0)
     crass (1.0.6)
@@ -95,16 +96,20 @@ GEM
       database_cleaner-core (~> 2.0.0)
     database_cleaner-core (2.0.1)
     date (3.4.1)
+    debug (1.11.1)
+      irb (~> 1.10)
+      reline (>= 0.3.8)
     diff-lcs (1.5.1)
     docile (1.4.1)
     drb (2.2.1)
+    erb (6.0.1)
     erubi (1.13.1)
     globalid (1.2.1)
       activesupport (>= 6.1)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
     io-console (0.8.0)
-    irb (1.15.2)
+    irb (1.16.0)
       pp (>= 0.6.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
@@ -121,10 +126,10 @@ GEM
       net-pop
       net-smtp
     marcel (1.0.4)
-    method_source (1.1.0)
     mini_mime (1.1.5)
     mini_portile2 (2.8.8)
-    minitest (5.25.5)
+    minitest (6.0.1)
+      prism (~> 1.5)
     net-imap (0.5.7)
       date
       net-protocol
@@ -156,14 +161,8 @@ GEM
     pp (0.6.2)
       prettyprint
     prettyprint (0.2.0)
-    prism (1.4.0)
-    pry (0.15.2)
-      coderay (~> 1.1)
-      method_source (~> 1.0)
-    pry-byebug (3.11.0)
-      byebug (~> 12.0)
-      pry (>= 0.13, < 0.16)
-    psych (5.2.3)
+    prism (1.8.0)
+    psych (5.3.1)
       date
       stringio
     racc (1.8.1)
@@ -175,39 +174,43 @@ GEM
       rack (>= 1.3)
     rackup (2.2.1)
       rack (>= 3)
-    rails (7.2.2.1)
-      actioncable (= 7.2.2.1)
-      actionmailbox (= 7.2.2.1)
-      actionmailer (= 7.2.2.1)
-      actionpack (= 7.2.2.1)
-      actiontext (= 7.2.2.1)
-      actionview (= 7.2.2.1)
-      activejob (= 7.2.2.1)
-      activemodel (= 7.2.2.1)
-      activerecord (= 7.2.2.1)
-      activestorage (= 7.2.2.1)
-      activesupport (= 7.2.2.1)
+    rails (7.2.3)
+      actioncable (= 7.2.3)
+      actionmailbox (= 7.2.3)
+      actionmailer (= 7.2.3)
+      actionpack (= 7.2.3)
+      actiontext (= 7.2.3)
+      actionview (= 7.2.3)
+      activejob (= 7.2.3)
+      activemodel (= 7.2.3)
+      activerecord (= 7.2.3)
+      activestorage (= 7.2.3)
+      activesupport (= 7.2.3)
       bundler (>= 1.15.0)
-      railties (= 7.2.2.1)
+      railties (= 7.2.3)
     rails-dom-testing (2.2.0)
       activesupport (>= 5.0.0)
       minitest
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.6.2)
       loofah (~> 2.21)
       nokogiri (>= 1.15.7, != 1.16.7, != 1.16.6, != 1.16.5, != 1.16.4, != 1.16.3, != 1.16.2, != 1.16.1, != 1.16.0.rc1, != 1.16.0)
-    railties (7.2.2.1)
-      actionpack (= 7.2.2.1)
-      activesupport (= 7.2.2.1)
+    railties (7.2.3)
+      actionpack (= 7.2.3)
+      activesupport (= 7.2.3)
+      cgi
       irb (~> 1.13)
       rackup (>= 1.0.0)
       rake (>= 12.2)
       thor (~> 1.0, >= 1.2.2)
+      tsort (>= 0.2)
       zeitwerk (~> 2.6)
     rainbow (3.1.1)
     rake (13.2.1)
-    rdoc (6.13.1)
+    rdoc (7.0.3)
+      erb
       psych (>= 4.0.0)
+      tsort
     regexp_parser (2.11.0)
     reline (0.6.1)
       io-console (~> 0.5)
@@ -252,20 +255,23 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.13.1)
     simplecov_json_formatter (0.1.4)
+    sqlite3 (2.6.0)
+      mini_portile2 (~> 2.8.0)
     sqlite3 (2.6.0-aarch64-linux-gnu)
     sqlite3 (2.6.0-arm-linux-gnu)
     sqlite3 (2.6.0-arm64-darwin)
     sqlite3 (2.6.0-x86-linux-gnu)
     sqlite3 (2.6.0-x86_64-darwin)
     sqlite3 (2.6.0-x86_64-linux-gnu)
-    stringio (3.1.6)
+    stringio (3.2.0)
     thor (1.3.2)
     timeout (0.4.3)
+    tsort (0.2.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (3.1.4)
       unicode-emoji (~> 4.0, >= 4.0.4)
-    unicode-emoji (4.0.4)
+    unicode-emoji (4.2.0)
     useragent (0.16.11)
     websocket-driver (0.7.7)
       base64
@@ -284,8 +290,8 @@ PLATFORMS
 DEPENDENCIES
   bundler
   database_cleaner (~> 2.0)
+  debug
   ostruct
-  pry-byebug
   rails (~> 7.2)
   rspec (~> 3.2)
   rubocop

spec/spec_helper.rb

@@ -10,7 +10,7 @@
 $LOAD_PATH.unshift(File.dirname(__FILE__))
 
 require 'rspec'
-require 'pry-byebug'
+require 'debug'
 require 'database_cleaner'
 require 'ostruct'