[Feature #18290] Remove tests that test use of rb_gc_force_recycle

Remove tests that assume objects get force recycled.

1 files changed, 0 insertions, 24 deletions

diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index a90140fd0b..96e572b98d 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -3847,30 +3847,6 @@ __END__
       end
       end;
     end
-
-    def test_write_no_garbage
-      skip "multiple threads already active" if Thread.list.size > 1
-      res = {}
-      ObjectSpace.count_objects(res) # creates strings on first call
-      [ 'foo'.b, '*' * 24 ].each do |buf|
-        with_pipe do |r, w|
-          GC.disable
-          begin
-            before = ObjectSpace.count_objects(res)[:T_STRING]
-            n = w.write(buf)
-            s = w.syswrite(buf)
-            after = ObjectSpace.count_objects(res)[:T_STRING]
-          ensure
-            GC.enable
-          end
-          assert_equal before, after,
-            "no strings left over after write [ruby-core:78898] [Bug #13085]: #{ before } strings before write -> #{ after } strings after write"
-          assert_not_predicate buf, :frozen?, 'no inadvertent freeze'
-          assert_equal buf.bytesize, n, 'IO#write wrote expected size'
-          assert_equal s, n, 'IO#syswrite wrote expected size'
-        end
-      end
-    end
   end
 
   def test_pread