class RubyMemcheck::Configuration

def command(*args)
  [
    # On some Rubies, not setting the stack size to be ulimited causes
    # Valgrind to report the following error:
    #   Invalid write of size 1
    #     reserve_stack (thread_pthread.c:845)
    #     ruby_init_stack (thread_pthread.c:871)
    #     main (main.c:48)
    "ulimit -s unlimited && ",
    valgrind,
    valgrind_options,
    valgrind_suppression_files.map { |f| "--suppressions=#{f}" },
    valgrind_generate_suppressions ? "--gen-suppressions=all" : "",
    ruby,
    "-r" + File.expand_path(File.join(__dir__, "test_helper.rb")),
    args,
  ].flatten.join(" ")
end