dev: Add rake task test:gdb

for running the test suite in the debugger.

Author: flavorjones

rakelib/test.rake

@@ -15,10 +15,21 @@ Minitest::TestTask.create(:test, &test_config)
 
 begin
   require "ruby_memcheck"
+rescue LoadError => e
+  warn("NOTE: ruby_memcheck is not available in this environment: #{e}")
+end
 
-  namespace :test do
+class GdbTestTask < Minitest::TestTask
+  def ruby(*args, **options, &block)
+    command = "gdb --args #{RUBY} #{args.join(" ")}"
+    sh(command, **options, &block)
+  end
+end
+
+namespace :test do
+  if defined?(RubyMemcheck)
     RubyMemcheck::TestTask.new(:valgrind, &test_config)
   end
-rescue LoadError => e
-  warn("NOTE: ruby_memcheck is not available in this environment: #{e}")
+
+  GdbTestTask.create(:gdb)
 end