1 files changed, 10 insertions, 1 deletions
diff --git a/spec/ruby/core/string/shared/to_sym.rb b/spec/ruby/core/string/shared/to_sym.rb
index 416f302aef..833eae100e 100644
--- a/spec/ruby/core/string/shared/to_sym.rb
+++ b/spec/ruby/core/string/shared/to_sym.rb
@@ -53,11 +53,20 @@ describe :string_to_sym, shared: true do
     sym.to_s.should == binary_string
   end
 
+  it "ignores existing symbols with different encoding" do
+    source = "fée"
+
+    iso_symbol = source.dup.force_encoding(Encoding::ISO_8859_1).send(@method)
+    iso_symbol.encoding.should == Encoding::ISO_8859_1
+    binary_symbol = source.dup.force_encoding(Encoding::BINARY).send(@method)
+    binary_symbol.encoding.should == Encoding::BINARY
+  end
+
   it "raises an EncodingError for UTF-8 String containing invalid bytes" do
     invalid_utf8 = "\xC3"
     invalid_utf8.should_not.valid_encoding?
     -> {
       invalid_utf8.send(@method)
-    }.should raise_error(EncodingError, /invalid/)
+    }.should raise_error(EncodingError, 'invalid symbol in encoding UTF-8 :"\xC3"')
   end
 end