1 files changed, 6 insertions, 4 deletions
diff --git a/test/ruby/test_parse.rb b/test/ruby/test_parse.rb
index 0b3657f8a0..d21484f4b6 100644
--- a/test/ruby/test_parse.rb
+++ b/test/ruby/test_parse.rb
@@ -720,13 +720,15 @@ x = __ENCODING__
   end
 
   def test_invalid_instance_variable
-    assert_raise(SyntaxError) { eval('@#') }
-    assert_raise(SyntaxError) { eval('@') }
+    pattern = /without identifiers is not allowed as an instance variable name/
+    assert_raise_with_message(SyntaxError, pattern) { eval('@%') }
+    assert_raise_with_message(SyntaxError, pattern) { eval('@') }
   end
 
   def test_invalid_class_variable
-    assert_raise(SyntaxError) { eval('@@1') }
-    assert_raise(SyntaxError) { eval('@@') }
+    pattern = /without identifiers is not allowed as a class variable name/
+    assert_raise_with_message(SyntaxError, pattern) { eval('@@%') }
+    assert_raise_with_message(SyntaxError, pattern) { eval('@@') }
   end
 
   def test_invalid_char