Add a test of Ractor

Author: mrkn

test/bigdecimal/test_ractor.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+require_relative "testbase"
+
+class TestBigDecimalRactor < Test::Unit::TestCase
+  include TestBigDecimalBase
+
+  def setup
+    super
+    skip unless defined? Ractor
+  end
+
+  def test_ractor_shareable
+    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    begin;
+      $VERBOSE = nil
+      require "bigdecimal"
+      r = Ractor.new BigDecimal(Math::PI, Float::DIG+1) do |pi|
+        BigDecimal('2.0')*pi
+      end
+      assert_equal(2*Math::PI, r.take)
+    end;
+  end
+end