Test against Ruby 4.0 (#190)

Author: rsamoilov

.github/workflows/docs.yml

@@ -14,7 +14,7 @@ jobs:
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: ruby
+          ruby-version: 3.4
           bundler-cache: true
       - name: Generate documentation
         run: bundle exec yardoc

.github/workflows/main.yml

@@ -18,6 +18,7 @@ jobs:
           - '3.2'
           - '3.3'
           - '3.4'
+          - '4.0'
     steps:
     - uses: actions/checkout@v3
     - name: Set up Ruby
@@ -41,7 +42,7 @@ jobs:
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: ruby
+        ruby-version: 3.4
         bundler-cache: true
     - name: Run Linter
       run: bundle exec rubocop
@@ -53,7 +54,7 @@ jobs:
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: ruby
+        ruby-version: 3.4
         bundler-cache: true
     - name: Run YARD
       run: bundle exec yardoc --fail-on-warning
@@ -65,7 +66,7 @@ jobs:
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: ruby
+        ruby-version: 3.4
         bundler-cache: true
     - name: Build the gem
       run: gem build -o rage-local.gem && gem install rage-local.gem --no-document
@@ -96,7 +97,7 @@ jobs:
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: ruby
+        ruby-version: 3.4
         bundler-cache: true
     - name: Build the gem
       run: gem build -o rage-local.gem && gem install rage-local.gem --no-document

Gemfile

@@ -12,6 +12,8 @@ gem "yard"
 gem "rubocop", "~> 1.65.0", require: false
 
 group :test do
+  gem "ostruct"
+  gem "benchmark"
   gem "activesupport"
   gem "http"
   gem "pg"

rage.gemspec

@@ -34,4 +34,5 @@ Gem::Specification.new do |spec|
   spec.add_dependency "rack-test", "~> 2.1"
   spec.add_dependency "rake", ">= 12.0"
   spec.add_dependency "logger"
+  spec.add_dependency "irb"
 end