Add Ruby 3.4 preview 2 to the CI

.gitignore

@@ -33,4 +33,5 @@ ext/*.bundle
 ext/*.o
 ext/*.so
 ext/*.report
+ext/*.bundle.dSYM
 pkg/

build_matrix.yml

@@ -88,6 +88,7 @@ matrix:
       - "rails-8.0"
 
   ruby:
+    - ruby: "3.4.0-preview2"
     - ruby: "3.3.4"
     - ruby: "3.2.5"
     - ruby: "3.1.6"
@@ -102,6 +103,7 @@ matrix:
     - gem: "dry-monitor"
       only:
         ruby:
+          - "3.4.0-preview2"
           - "3.3.4"
           - "3.2.5"
           - "3.1.6"
@@ -110,20 +112,23 @@ matrix:
     - gem: "hanami-2.0"
       only:
         ruby:
+          - "3.4.0-preview2"
           - "3.3.4"
           - "3.2.5"
           - "3.1.6"
           - "3.0.7"
     - gem: "hanami-2.1"
       only:
         ruby:
+          - "3.4.0-preview2"
           - "3.3.4"
           - "3.2.5"
           - "3.1.6"
           - "3.0.7"
     - gem: "hanami-2.2"
       only:
         ruby:
+          - "3.4.0-preview2"
           - "3.3.4"
           - "3.2.5"
           - "3.1.6"
@@ -132,6 +137,7 @@ matrix:
     - gem: "psych-3"
       only:
         ruby:
+          - "3.4.0-preview2"
           - "3.3.4"
           - "3.2.5"
           - "3.1.6"
@@ -140,6 +146,7 @@ matrix:
     - gem: "psych-4"
       only:
         ruby:
+          - "3.4.0-preview2"
           - "3.3.4"
           - "3.2.5"
           - "3.1.6"
@@ -165,6 +172,7 @@ matrix:
     - gem: "rails-7.0"
       only:
         ruby:
+          - "3.4.0-preview2"
           - "3.3.4"
           - "3.2.5"
           - "3.1.6"
@@ -174,6 +182,7 @@ matrix:
     - gem: "rails-7.1"
       only:
         ruby:
+          - "3.4.0-preview2"
           - "3.3.4"
           - "3.2.5"
           - "3.1.6"
@@ -182,13 +191,15 @@ matrix:
     - gem: "rails-7.2"
       only:
         ruby:
+          - "3.4.0-preview2"
           - "3.3.4"
           - "3.2.5"
           - "3.1.6"
           - "jruby-9.4.7.0"
     - gem: "rails-8.0"
       only:
         ruby:
+          - "3.4.0-preview2"
           - "3.3.4"
           - "3.2.5"
     - gem: "sequel"

gemfiles/padrino.gemfile

@@ -1,7 +1,8 @@
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
-gem 'padrino', "~> 0.15"
-gem 'rack', "~> 2"
-gem 'sinatra', "~> 2"
+gem "base64" # Ruby 3.4 requirement
+gem "padrino", "~> 0.15"
+gem "rack", "~> 2"
+gem "sinatra", "~> 2"
 
-gemspec :path => '../'
+gemspec :path => "../"

gemfiles/rails-7.0.gemfile

@@ -1,5 +1,8 @@
 source "https://rubygems.org"
 
+gem "base64" # Ruby 3.4 requirement
+gem "drb" # Ruby 3.4 requirement
+gem "mutex_m" # Ruby 3.4 requirement
 gem "rails", "~> 7.0.1"
 gem "rake", "> 12.2"
 gem "sidekiq"

gemfiles/webmachine2.gemfile

@@ -1,5 +1,6 @@
 source "https://rubygems.org"
 
+gem "mutex_m" # Ruby 3.4 requirement
 gem "webmachine", "~> 2.0"
 gem "webrick"
 

lib/appsignal/probes/sidekiq.rb

@@ -59,7 +59,11 @@ def initialize(config = {})
         is_sidekiq7 = self.class.sidekiq7_and_greater?
         @adapter = is_sidekiq7 ? Sidekiq7Adapter : Sidekiq6Adapter
 
-        config_string = " with config: #{config}" unless config.empty?
+        unless config.empty?
+          formatted_config =
+            config.map { |key, value| "#{key}: #{value.inspect}" }.join(", ")
+          config_string = " with config: #{formatted_config}"
+        end
         Appsignal.internal_logger.debug("Initializing Sidekiq probe#{config_string}")
         require "sidekiq/api"
       end

spec/lib/appsignal/event_formatter/elastic_search/search_formatter_spec.rb

@@ -18,9 +18,15 @@
     end
 
     it "should return a payload with name and sanitized body" do
+      query =
+        if DependencyHelper.ruby_3_4_or_newer?
+          "{index: \"users\", type: \"user\", q: \"?\"}"
+        else
+          "{:index=>\"users\", :type=>\"user\", :q=>\"?\"}"
+        end
       expect(formatter.format(payload)).to eql([
         "Search: User",
-        "{:index=>\"users\", :type=>\"user\", :q=>\"?\"}"
+        query
       ])
     end
   end

spec/lib/appsignal/probes/sidekiq_spec.rb

@@ -312,7 +312,7 @@ def with_sidekiq6!
         log = capture_logs { probe }
         expect(log).to contains_log(
           :debug,
-          %(Initializing Sidekiq probe with config: {:hostname=>"#{redis_hostname}"})
+          %(Initializing Sidekiq probe with config: hostname: "#{redis_hostname}")
         )
         log = capture_logs { probe.call }
         expect(log).to contains_log(

spec/lib/appsignal/utils/data_spec.rb

@@ -108,7 +108,11 @@ def generate(object)
 
           it "casts unsupported key types to string" do
             expect(generate([1, 2] => "abc").to_s).to eq(%({"[1, 2]":"abc"}))
-            expect(generate({ :a => "b" } => "abc").to_s).to eq(%({"{:a=>\\"b\\"}":"abc"}))
+            if DependencyHelper.ruby_3_4_or_newer?
+              expect(generate({ :a => "b" } => "abc").to_s).to eq(%({"{a: \\"b\\"}":"abc"}))
+            else
+              expect(generate({ :a => "b" } => "abc").to_s).to eq(%({"{:a=>\\"b\\"}":"abc"}))
+            end
           end
         end
       end

spec/support/helpers/dependency_helper.rb

@@ -17,6 +17,10 @@ def ruby_3_2_or_newer?
     ruby_version >= Gem::Version.new("3.2.0")
   end
 
+  def ruby_3_4_or_newer?
+    ruby_version >= Gem::Version.new("3.4.0")
+  end
+
   def running_jruby?
     Appsignal::System.jruby?
   end