MRuby.each_target do

gem_table = gems.generate_gem_table

gems.each do |g|
  test_rbobj = g.test_rbireps.ext(exts.object)
  g.test_objs << test_rbobj
  dep_list = gems.tsort_dependencies g.test_dependencies, gem_table

  file test_rbobj => g.test_rbireps
  file g.test_rbireps => [g.test_rbfiles].flatten + [File.join(g.dir, 'mrbgem.rake'), g.build.mrbcfile, __FILE__, "#{MRUBY_ROOT}/tasks/mrbgem_spec.rake"] do |t|
    open(t.name, 'w') do |f|
      g.print_gem_test_header(f)
      test_preload = g.test_preload and [g.dir, MRUBY_ROOT].map {|dir|
        File.expand_path(g.test_preload, dir)
      }.find {|file| File.exist?(file) }

      f.puts %Q[  ]
      f.puts %Q[ * This file contains a test code for #{g.name} gem.]
      f.puts %Q[ *]
      f.puts %Q[ * IMPORTANT:]
      f.puts %Q[ *   This file was generated!]
      f.puts %Q[ *   All manual changes will get lost.]
      f.puts %Q[   ]
      if test_preload.nil?
        f.puts %Q[extern const uint8_t mrbtest_assert_irep[];]
      else
        g.build.mrbc.run f, test_preload, "gem_test_irep_#{g.funcname}_preload"
      end
      g.test_rbfiles.flatten.each_with_index do |rbfile, i|
        g.build.mrbc.run f, rbfile, "gem_test_irep_#{g.funcname}_#{i}"
      end
      f.puts %Q[void mrb_#{g.funcname}_gem_test(mrb_state *mrb);] unless g.test_objs.empty?
      dep_list.each do |d|
        f.puts %Q[void GENERATED_TMP_mrb_#{d.funcname}_gem_init(mrb_state *mrb);]
        f.puts %Q[void GENERATED_TMP_mrb_#{d.funcname}_gem_final(mrb_state *mrb);]
      end
      f.puts %Q[void mrb_init_test_driver(mrb_state *mrb, mrb_bool verbose);]
      f.puts %Q[void mrb_t_pass_result(mrb_state *dst, mrb_state *src);]
      f.puts %Q[void GENERATED_TMP_mrb_#{g.funcname}_gem_test(mrb_state *mrb) {]
      unless g.test_rbfiles.empty?
        f.puts %Q[  mrb_state *mrb2;]
        unless g.test_args.empty?
          f.puts %Q[  mrb_value test_args_hash;]
        end
        f.puts %Q[  int ai;]
        g.test_rbfiles.count.times do |i|
          f.puts %Q[  ai = mrb_gc_arena_save(mrb);]
          f.puts %Q[  mrb2 = mrb_open_core(mrb_default_allocf, NULL);]
          dep_list.each do |d|
            f.puts %Q[  GENERATED_TMP_mrb_#{d.funcname}_gem_init(mrb2);]
            f.puts %Q[  mrb_state_atexit(mrb2, GENERATED_TMP_mrb_#{d.funcname}_gem_final);]
          end
          f.puts %Q[  mrb_init_test_driver(mrb2, mrb_test(mrb_gv_get(mrb, mrb_intern_lit(mrb, "$mrbtest_verbose"))));]
          if test_preload.nil?
            f.puts %Q[  mrb_load_irep(mrb2, mrbtest_assert_irep);]
          else
            f.puts %Q[  mrb_load_irep(mrb2, gem_test_irep_#{g.funcname}_preload);]
          end
          f.puts %Q[  if (mrb2->exc) {]
          f.puts %Q[    mrb_print_error(mrb2);]
          f.puts %Q[    exit(EXIT_FAILURE);]
          f.puts %Q[  }]
          f.puts %Q[  mrb_const_set(mrb2, mrb_obj_value(mrb2->object_class), mrb_intern_lit(mrb2, "GEMNAME"), mrb_str_new(mrb2, "#{g.name}", #{g.name.length}));]

          unless g.test_args.empty?
            f.puts %Q[  test_args_hash = mrb_hash_new_capa(mrb, #{g.test_args.length}); ]
            g.test_args.each do |arg_name, arg_value|
              escaped_arg_name = arg_name.gsub('\', '\\\\').gsub('"', '\"')
              escaped_arg_value = arg_value.gsub('\', '\\\\').gsub('"', '\"')
              f.puts %Q[  mrb_hash_set(mrb2, test_args_hash, mrb_str_new(mrb2, "#{escaped_arg_name.to_s}", #{escaped_arg_name.to_s.length}), mrb_str_new(mrb2, "#{escaped_arg_value.to_s}", #{escaped_arg_value.to_s.length})); ]
            end
            f.puts %Q[  mrb_const_set(mrb2, mrb_obj_value(mrb2->object_class), mrb_intern_lit(mrb2, "TEST_ARGS"), test_args_hash); ]
          end

          f.puts %Q[  mrb_#{g.funcname}_gem_test(mrb2);] if g.custom_test_init?

          f.puts %Q[  mrb_load_irep(mrb2, gem_test_irep_#{g.funcname}_#{i});]
          f.puts %Q[  ]

          f.puts %Q[  mrb_t_pass_result(mrb, mrb2);]
          f.puts %Q[  mrb_close(mrb2);]
          f.puts %Q[  mrb_gc_arena_restore(mrb, ai);]
        end
      end
      f.puts %Q[}]
    end
  end
end

end

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