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-rw-r--r--activesupport/test/safe_buffer_test.rb9
1 files changed, 9 insertions, 0 deletions
diff --git a/activesupport/test/safe_buffer_test.rb b/activesupport/test/safe_buffer_test.rb
index efa9d5e61f..fca4b45276 100644
--- a/activesupport/test/safe_buffer_test.rb
+++ b/activesupport/test/safe_buffer_test.rb
@@ -165,4 +165,13 @@ class SafeBufferTest < ActiveSupport::TestCase
x = 'foo %{x} bar'.html_safe % { x: 'qux' }
assert x.html_safe?, 'should be safe'
end
+
+ test 'Should not affect frozen objects when accessing characters' do
+ x = 'Hello'.html_safe
+ assert_nothing_raised do
+ x[/a/, 1]
+ end
+ end
+
+
end