Integrate `init_mrbtest.c` to `driver.c` in `mruby-test` mrbgem

- `mrbgemtest_init()` is needed if `DISABLE_GEMS` is enabled because core
  tests are run as part of `mruby-test` mrbgem (moreover, `DISABLE_GEMS` is
  disabled when `enable_test` is used in build config).
- For the same reason `mrb_open_core()` etc for core tests is unneeded.

mrbgems/mruby-test/driver.c

@@ -18,8 +18,9 @@
 #include <mruby/variable.h>
 #include <mruby/array.h>
 
-void
-mrb_init_mrbtest(mrb_state *);
+extern const uint8_t mrbtest_assert_irep[];
+
+void mrbgemtest_init(mrb_state* mrb);
 
 /* Print a short remark for the user */
 static void
@@ -167,7 +168,8 @@ main(int argc, char **argv)
   }
 
   mrb_init_test_driver(mrb, verbose);
-  mrb_init_mrbtest(mrb);
+  mrb_load_irep(mrb, mrbtest_assert_irep);
+  mrbgemtest_init(mrb);
   ret = eval_test(mrb);
   mrb_close(mrb);
 

mrbgems/mruby-test/init_mrbtest.c

-#include <stdlib.h>
-#include <mruby.h>
-#include <mruby/irep.h>
-#include <mruby/variable.h>
-
-extern const uint8_t mrbtest_assert_irep[];
-
-void mrbgemtest_init(mrb_state* mrb);
-void mrb_init_test_driver(mrb_state* mrb, mrb_bool verbose);
-void mrb_t_pass_result(mrb_state *mrb_dst, mrb_state *mrb_src);
-
-void
-mrb_init_mrbtest(mrb_state *mrb)
-{
-  mrb_state *core_test;
-
-  mrb_load_irep(mrb, mrbtest_assert_irep);
-
-  core_test = mrb_open_core(mrb_default_allocf, NULL);
-  if (core_test == NULL) {
-    fprintf(stderr, "Invalid mrb_state, exiting %s", __FUNCTION__);
-    exit(EXIT_FAILURE);
-  }
-  mrb_init_test_driver(core_test, mrb_test(mrb_gv_get(mrb, mrb_intern_lit(mrb, "$mrbtest_verbose"))));
-  mrb_load_irep(core_test, mrbtest_assert_irep);
-  mrb_t_pass_result(mrb, core_test);
-
-#ifndef DISABLE_GEMS
-  mrbgemtest_init(mrb);
-#endif
-
-  if (mrb->exc) {
-    mrb_print_error(mrb);
-    mrb_close(mrb);
-    exit(EXIT_FAILURE);
-  }
-  mrb_close(core_test);
-}
-

mrbgems/mruby-test/mrbgem.rake

@@ -144,8 +144,6 @@ MRuby::Gem::Specification.new('mruby-test') do |spec|
     end
   end
 
-  init = "#{spec.dir}/init_mrbtest.c"
-
   # store the last gem selection and make the re-build
   # of the test gem depending on a change to the gem
   # selection
@@ -164,7 +162,7 @@ MRuby::Gem::Specification.new('mruby-test') do |spec|
   file clib => active_gems_path if active_gem_list != current_gem_list
 
   file mlib => clib
-  file clib => [init, build.mrbcfile, __FILE__] do |_t|
+  file clib => [build.mrbcfile, __FILE__] do |_t|
     _pp "GEN", "*.rb", "#{clib.relative_path}"
     FileUtils.mkdir_p File.dirname(clib)
     open(clib, 'w') do |f|
@@ -177,7 +175,8 @@ MRuby::Gem::Specification.new('mruby-test') do |spec|
       f.puts %Q[ *   All manual changes will get lost.]
       f.puts %Q[ */]
       f.puts %Q[]
-      f.puts IO.read(init)
+      f.puts %Q[struct mrb_state;]
+      f.puts %Q[typedef struct mrb_state mrb_state;]
       build.gems.each do |g|
         f.puts %Q[void GENERATED_TMP_mrb_#{g.funcname}_gem_test(mrb_state *mrb);]
       end