https://git.ruby-lang.org/ruby.git/commit/?id=7eaedda557

From 7eaedda557f689087861e6c0e7c9abca8cd92fc1 Mon Sep 17 00:00:00 2001
From: Kazuhiro NISHIYAMA <zn@m...>
Date: Fri, 28 Jun 2019 12:37:36 +0900
Subject: Use block instead of explicit close


diff --git a/test/scanf/test_scanfio.rb b/test/scanf/test_scanfio.rb
index 857ac7e..fdd5928 100644
--- a/test/scanf/test_scanfio.rb
+++ b/test/scanf/test_scanfio.rb
@@ -10,21 +10,19 @@ require 'scanf' https://github.com/ruby/ruby/blob/trunk/test/scanf/test_scanfio.rb#L10
 
 class TestScanfIO < Test::Unit::TestCase
   def test_io
-    fh = File.new(File.join(File.dirname(__FILE__), "data.txt"), "r")
-    assert_equal(0, fh.pos)
-    assert_equal(["this", "is"], fh.scanf("%s%s"))
-    assert_equal([33, "little"], fh.scanf("%da fun%s"))
-  ensure
-    fh.close
+    File.open(File.join(File.dirname(__FILE__), "data.txt"), "r") do |fh|
+      assert_equal(0, fh.pos)
+      assert_equal(["this", "is"], fh.scanf("%s%s"))
+      assert_equal([33, "little"], fh.scanf("%da fun%s"))
+    end
   end
 
   def test_pipe_scanf
-    r, w = IO.pipe
-    w.write('a')
-    w.close
-    assert_equal([], r.scanf('a'))
-  ensure
-    r.close
+    IO.pipe do |r, w|
+      w.write('a')
+      w.close
+      assert_equal([], r.scanf('a'))
+    end
   end
 end
 
-- 
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