Merge pull request #81 from ruby/pz-fix-3-2-test

Fix test for Ruby head

Author: peterzhu2118

test/net/http/test_httpheader.rb

@@ -28,7 +28,11 @@ def test_initialize
     assert_raise(NoMethodError){ @c.initialize_http_header("foo"=>[]) }
     assert_raise(ArgumentError){ @c.initialize_http_header("foo"=>"a\nb") }
     assert_raise(ArgumentError){ @c.initialize_http_header("foo"=>"a\rb") }
-    assert_raise(ArgumentError){ @c.initialize_http_header("foo"=>"a\xff") }
+  end
+
+  def test_initialize_with_broken_coderange
+    error = RUBY_VERSION >= "3.2" ? Encoding::CompatibilityError : ArgumentError
+    assert_raise(error){ @c.initialize_http_header("foo"=>"a\xff") }
   end
 
   def test_initialize_with_symbol