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-rw-r--r--activesupport/test/safe_buffer_test.rb12
1 files changed, 12 insertions, 0 deletions
diff --git a/activesupport/test/safe_buffer_test.rb b/activesupport/test/safe_buffer_test.rb
index a4e2acbb32..3a9854358c 100644
--- a/activesupport/test/safe_buffer_test.rb
+++ b/activesupport/test/safe_buffer_test.rb
@@ -60,4 +60,16 @@ class SafeBufferTest < ActiveSupport::TestCase
yaml = YAML.dump data
assert_equal({'str' => str}, YAML.load(yaml))
end
+
+ test "Should not return safe buffer from gsub" do
+ altered_buffer = @buffer.gsub('', 'asdf')
+ assert_equal 'asdf', altered_buffer
+ assert !altered_buffer.html_safe?
+ end
+
+ test "Should not allow gsub! on safe buffers" do
+ assert_raise TypeError do
+ @buffer.gsub!('', 'asdf')
+ end
+ end
end