From e030e9f0b8be42dd8c5eb43e3f390106f3b6a48e Mon Sep 17 00:00:00 2001
From: mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 26 Dec 2018 09:04:12 +0000
Subject: [PATCH] object.c (rb_obj_match): use rb_warn for deprecation warning

Now the warning is printed even without -w option.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66576 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 object.c                            | 4 ++--
 test/minitest/test_minitest_unit.rb | 4 +++-
 test/ruby/test_object.rb            | 9 +++++++++
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/object.c b/object.c
index a60626b5a1..31caea714f 100644
--- a/object.c
+++ b/object.c
@@ -1687,8 +1687,8 @@ rb_false(VALUE obj)
 static VALUE
 rb_obj_match(VALUE obj1, VALUE obj2)
 {
-    rb_warning("deprecated Object#=~ is called on %"PRIsVALUE
-               "; it always returns nil", rb_obj_class(obj1));
+    rb_warn("deprecated Object#=~ is called on %"PRIsVALUE
+            "; it always returns nil", rb_obj_class(obj1));
     return Qnil;
 }
 
diff --git a/test/minitest/test_minitest_unit.rb b/test/minitest/test_minitest_unit.rb
index 3d92b865c3..f59bc45c26 100644
--- a/test/minitest/test_minitest_unit.rb
+++ b/test/minitest/test_minitest_unit.rb
@@ -1529,7 +1529,9 @@ class TestMiniTestUnitTestCase < MiniTest::Unit::TestCase
   def test_refute_match_matcher_object
     @assertion_count = 2
     non_verbose do
-      @tc.refute_match Object.new, 5 # default #=~ returns false
+      obj = Object.new
+      def obj.=~(other); false; end
+      @tc.refute_match obj, 5
     end
   end
 
diff --git a/test/ruby/test_object.rb b/test/ruby/test_object.rb
index 28e07162d7..0d31eb3ff0 100644
--- a/test/ruby/test_object.rb
+++ b/test/ruby/test_object.rb
@@ -946,4 +946,13 @@ class TestObject < Test::Unit::TestCase
       end
     EOS
   end
+
+  def test_matcher
+    assert_warning(/deprecated Object#=~ is called on Object/) do
+      assert_equal(Object.new =~ 42, nil)
+    end
+    assert_warning(/deprecated Object#=~ is called on Array/) do
+      assert_equal([] =~ 42, nil)
+    end
+  end
 end