update tests to use ruby 3.2.0 and newer gems versions

Author: wandenberg

test/Gemfile

@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-ruby '2.1.2'
+ruby '3.2.0'
 
 gem 'rake'
 

test/Gemfile.lock

@@ -1,51 +1,59 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    Platform (0.4.0)
-    addressable (2.3.8)
-    byebug (6.0.2)
-    cookiejar (0.3.2)
-    diff-lcs (1.2.5)
-    em-eventsource (0.2.1)
+    Platform (0.4.2)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
+    byebug (11.1.3)
+    cookiejar (0.3.3)
+    diff-lcs (1.5.0)
+    em-eventsource (0.3.2)
       em-http-request (~> 1.0)
       eventmachine (~> 1.0)
-    em-http-request (1.1.2)
+    em-http-request (1.1.7)
       addressable (>= 2.3.4)
-      cookiejar
+      cookiejar (!= 0.3.1)
       em-socksify (>= 0.3)
       eventmachine (>= 1.0.3)
       http_parser.rb (>= 0.6.0)
-    em-socksify (0.3.1)
+    em-socksify (0.3.2)
       eventmachine (>= 1.0.0.beta.4)
-    eventmachine (1.0.8)
-    http_parser.rb (0.6.0)
+    eventmachine (1.2.7)
+    http_parser.rb (0.8.0)
     nginx_test_helper (0.4.1)
       popen4
     open4 (1.3.4)
     popen4 (0.1.2)
       Platform (>= 0.4.0)
       open4 (>= 0.4.0)
-    rake (10.4.2)
-    rspec (3.3.0)
-      rspec-core (~> 3.3.0)
-      rspec-expectations (~> 3.3.0)
-      rspec-mocks (~> 3.3.0)
-    rspec-core (3.3.2)
-      rspec-support (~> 3.3.0)
-    rspec-expectations (3.3.1)
+    public_suffix (5.0.1)
+    rake (13.0.6)
+    rspec (3.12.0)
+      rspec-core (~> 3.12.0)
+      rspec-expectations (~> 3.12.0)
+      rspec-mocks (~> 3.12.0)
+    rspec-core (3.12.0)
+      rspec-support (~> 3.12.0)
+    rspec-expectations (3.12.2)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.3.0)
-    rspec-mocks (3.3.2)
+      rspec-support (~> 3.12.0)
+    rspec-mocks (3.12.3)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.3.0)
-    rspec-support (3.3.0)
+      rspec-support (~> 3.12.0)
+    rspec-support (3.12.0)
 
 PLATFORMS
-  ruby
+  x86_64-linux
 
 DEPENDENCIES
   byebug
   em-eventsource
   nginx_test_helper (~> 0.4.0)
   rake
   rspec
+
+RUBY VERSION
+   ruby 3.2.0p0
+
+BUNDLED WITH
+   2.4.1

test/spec_helper.rb

@@ -3,7 +3,7 @@
 # Set up gems listed in the Gemfile.
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', File.dirname(__FILE__))
 
-require 'bundler/setup' if File.exists?(ENV['BUNDLE_GEMFILE'])
+require 'bundler/setup' if File.exist?(ENV['BUNDLE_GEMFILE'])
 Bundler.require(:default, :test) if defined?(Bundler)
 
 require File.expand_path('nginx_configuration', File.dirname(__FILE__))