1 files changed, 90 insertions, 10 deletions
diff --git a/test/json/ractor_test.rb b/test/json/ractor_test.rb
index ba9bf7a7f6..e53c405a74 100644
--- a/test/json/ractor_test.rb
+++ b/test/json/ractor_test.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 
 require_relative 'test_helper'
 
@@ -8,11 +8,19 @@ rescue LoadError
 end
 
 class JSONInRactorTest < Test::Unit::TestCase
+  unless Ractor.method_defined?(:value)
+    module RactorBackport
+      refine Ractor do
+        alias_method :value, :take
+      end
+    end
+
+    using RactorBackport
+  end
+
   def test_generate
-    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
-    begin;
-      $VERBOSE = nil
-      require "json"
+    pid = fork do
+      Warning[:experimental] = false
       r = Ractor.new do
         json = JSON.generate({
           'a' => 2,
@@ -26,9 +34,81 @@ class JSONInRactorTest < Test::Unit::TestCase
         })
         JSON.parse(json)
       end
-      expected_json = '{"a":2,"b":3.141,"c":"c","d":[1,"b",3.14],"e":{"foo":"bar"},' +
-                      '"g":"\\"\\u0000\\u001f","h":1000.0,"i":0.001}'
-      assert_equal(JSON.parse(expected_json), r.take)
-    end;
+      expected_json = JSON.parse('{"a":2,"b":3.141,"c":"c","d":[1,"b",3.14],"e":{"foo":"bar"},' +
+                      '"g":"\\"\\u0000\\u001f","h":1000.0,"i":0.001}')
+      actual_json = r.value
+
+      if expected_json == actual_json
+        exit 0
+      else
+        puts "Expected:"
+        puts expected_json
+        puts "Actual:"
+        puts actual_json
+        puts
+        exit 1
+      end
+    end
+    _, status = Process.waitpid2(pid)
+    assert_predicate status, :success?
   end
-end if defined?(Ractor)
+
+  def test_coder
+    coder = JSON::Coder.new.freeze
+    assert Ractor.shareable?(coder)
+    pid = fork do
+      Warning[:experimental] = false
+      r = Ractor.new(coder) do |coder|
+        json = coder.dump({
+          'a' => 2,
+          'b' => 3.141,
+          'c' => 'c',
+          'd' => [ 1, "b", 3.14 ],
+          'e' => { 'foo' => 'bar' },
+          'g' => "\"\0\037",
+          'h' => 1000.0,
+          'i' => 0.001
+        })
+        coder.load(json)
+      end
+      expected_json = JSON.parse('{"a":2,"b":3.141,"c":"c","d":[1,"b",3.14],"e":{"foo":"bar"},' +
+                      '"g":"\\"\\u0000\\u001f","h":1000.0,"i":0.001}')
+      actual_json = r.value
+
+      if expected_json == actual_json
+        exit 0
+      else
+        puts "Expected:"
+        puts expected_json
+        puts "Actual:"
+        puts actual_json
+        puts
+        exit 1
+      end
+    end
+    _, status = Process.waitpid2(pid)
+    assert_predicate status, :success?
+  end
+
+  class NonNative
+    def initialize(value)
+      @value = value
+    end
+  end
+
+  def test_coder_proc
+    block = Ractor.shareable_proc { |value| value.as_json }
+    coder = JSON::Coder.new(&block).freeze
+    assert Ractor.shareable?(coder)
+
+    pid = fork do
+      Warning[:experimental] = false
+      assert_equal [{}], Ractor.new(coder) { |coder|
+        coder.load('[{}]')
+      }.value
+    end
+
+    _, status = Process.waitpid2(pid)
+    assert_predicate status, :success?
+  end if Ractor.respond_to?(:shareable_proc)
+end if defined?(Ractor) && Process.respond_to?(:fork)