1 files changed, 6 insertions, 1 deletions
diff --git a/test/ruby/test_regexp.rb b/test/ruby/test_regexp.rb
index 1ef1380078..35f23685eb 100644
--- a/test/ruby/test_regexp.rb
+++ b/test/ruby/test_regexp.rb
@@ -477,7 +477,7 @@ class TestRegexp < Test::Unit::TestCase
     end.value
     assert(m.tainted?)
     assert_nothing_raised('[ruby-core:26137]') {
-      m = proc {$SAFE = 4; %r"#{}"o}.call
+      m = proc {$SAFE = 4; %r"#{ }"o}.call
     }
     assert(m.tainted?)
   end
@@ -807,4 +807,9 @@ class TestRegexp < Test::Unit::TestCase
     assert_equal("1", $1)
     assert_equal(" " * 4999999, $2)
   end
+
+  def test_invalid_fragment
+    bug2547 = '[ruby-core:27374]'
+    assert_raise(SyntaxError, bug2547) {eval('/#{"\\\\"}y/')}
+  end
 end