1 files changed, 15 insertions, 0 deletions
diff --git a/test/ruby/test_time.rb b/test/ruby/test_time.rb
index 02ebc6ac38..188ec0da04 100644
--- a/test/ruby/test_time.rb
+++ b/test/ruby/test_time.rb
@@ -311,6 +311,21 @@ class TestTime < Test::Unit::TestCase
     end
   end
 
+  def test_marshal_zone_gc
+    assert_separately(%w(--disable-gems), <<-'end;', timeout: 30)
+      ENV["TZ"] = "JST-9"
+      s = Marshal.dump(Time.now)
+      t = Marshal.load(s)
+      n = 0
+      done = 100000
+      while t.zone.dup == "JST" && n < done
+        n += 1
+      end
+      assert_equal done, n, "Bug #9652"
+      assert_equal "JST", t.zone, "Bug #9652"
+    end;
+  end
+
   def test_marshal_to_s
     t1 = Time.new(2011,11,8, 0,42,25, 9*3600)
     t2 = Time.at(Marshal.load(Marshal.dump(t1)))