test_string.rb: yet another test

* test/ruby/test_string.rb (TestString#test_frozen_string_adjacent):
  option is allowed after the last string.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42780 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 11 insertions, 0 deletions

diff --git a/test/ruby/test_string.rb b/test/ruby/test_string.rb
index 5fdbaa61f4..06a92c5957 100644
--- a/test/ruby/test_string.rb
+++ b/test/ruby/test_string.rb
@@ -2225,6 +2225,17 @@ class TestString < Test::Unit::TestCase
     assert_equal "2", f.call
   end
 
+  def test_frozen_string_adjacent
+    str = nil
+    assert_nothing_raised(SyntaxError) do
+      eval(%{
+        str = "hello" "world"f
+      })
+    end
+    assert_equal "helloworld", str
+    assert_predicate str, :frozen?
+  end
+
   def test_frozen_string_cannot_be_adjacent
     assert_raise(SyntaxError) do
       eval(%{