tests: keep disabled tests defined

Some versions of test-unit will fail if an unspecified test is
attempted via "-n", so we need to define an empty test.

We cannot use "skip", either, as that seems exclusive to
minitest; and we won't use minitest since it has more
incompatible changes than test-unit over the last 8 years.

The memory leak test is gone since we're more versed in the
Ruby C API nowadays, modern GCs + mallocs may be less
predictable about releasing memory back to the OS.

1 files changed, 2 insertions, 2 deletions

diff --git a/test/unit/test_util.rb b/test/unit/test_util.rb
index 4d17a16..dc6302e 100644
--- a/test/unit/test_util.rb
+++ b/test/unit/test_util.rb
@@ -69,7 +69,7 @@ class TestUtil < Test::Unit::TestCase
       }
     }
     tmp.close!
-  end if STDIN.respond_to?(:external_encoding)
+  end
 
   def test_reopen_logs_renamed_with_internal_encoding
     tmp = Tempfile.new('')
@@ -101,5 +101,5 @@ class TestUtil < Test::Unit::TestCase
       }
     }
     tmp.close!
-  end if STDIN.respond_to?(:external_encoding)
+  end
 end