https://git.ruby-lang.org/ruby.git/commit/?id=e8700b596b

From e8700b596b907ed0db80ccd398d9dfe1f0fe6dd1 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Sun, 14 Jul 2019 20:52:49 +0900
Subject: Check the result of String#-@


diff --git a/test/ruby/test_string.rb b/test/ruby/test_string.rb
index 26de52d..611bb79 100644
--- a/test/ruby/test_string.rb
+++ b/test/ruby/test_string.rb
@@ -3177,18 +3177,20 @@ CODE https://github.com/ruby/ruby/blob/trunk/test/ruby/test_string.rb#L3177
 
   def test_uminus_no_freeze_not_bare
     str = @cls.new("foo")
-    -str
+    assert_instance_of(@cls, -str)
     assert_equal(false, str.frozen?)
 
     str = @cls.new("foo")
     str.instance_variable_set(:@iv, 1)
-    -str
+    assert_instance_of(@cls, -str)
     assert_equal(false, str.frozen?)
+    assert_equal(1, str.instance_variable_get(:@iv))
 
     str = @cls.new("foo")
     str.taint
-    -str
+    assert_instance_of(@cls, -str)
     assert_equal(false, str.frozen?)
+    assert_predicate(str, :tainted?)
   end
 
   def test_ord
-- 
cgit v0.10.2


--
ML: ruby-changes@q...
Info: http://www.atdot.net/~ko1/quickml/