Rakefile in rbs-3.6.1 vs Rakefile in rbs-3.7.0.dev.1

@@ -61,11 +61,16 @@
   libs = FileList["stdlib/*"].map {|path| File.basename(path).to_s }
 
   # Skip RBS validation because Ruby CI runs without rubygems
   case skip_rbs_validation = ENV["SKIP_RBS_VALIDATION"]
   when nil
-    libs << "rbs"
+    begin
+      Gem::Specification.find_by_name("rbs")
+      libs << "rbs"
+    rescue Gem::MissingSpecError
+      STDERR.puts "🚨🚨🚨🚨 Skipping `rbs` gem because it's not found"
+    end
   when "true"
     # Skip
   else
     STDERR.puts "🚨🚨🚨🚨 SKIP_RBS_VALIDATION is expected to be `true` or unset, given `#{skip_rbs_validation}` 🚨🚨🚨🚨"
     libs << "rbs"
@@ -84,9 +89,14 @@
 
 task :stdlib_test => :compile do
   test_files = FileList["test/stdlib/**/*_test.rb"].reject do |path|
     path =~ %r{Ractor} || path =~ %r{Encoding}
   end
+
+  if ENV["RANDOMIZE_STDLIB_TEST_ORDER"] == "true"
+    test_files.shuffle!
+  end
+
   sh "#{ruby} -Ilib #{bin}/test_runner.rb #{test_files.join(' ')}"
   # TODO: Ractor tests need to be run in a separate process
   sh "#{ruby} -Ilib #{bin}/test_runner.rb test/stdlib/Ractor_test.rb"
   sh "#{ruby} -Ilib #{bin}/test_runner.rb test/stdlib/Encoding_test.rb"
 end