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-rw-r--r--actionpack/lib/action_dispatch/testing/assertions/selector.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/actionpack/lib/action_dispatch/testing/assertions/selector.rb b/actionpack/lib/action_dispatch/testing/assertions/selector.rb
index 353be10d20..9ae4f65db9 100644
--- a/actionpack/lib/action_dispatch/testing/assertions/selector.rb
+++ b/actionpack/lib/action_dispatch/testing/assertions/selector.rb
@@ -197,7 +197,7 @@ module ActionDispatch
# This usually happens when passing a node/element that
# happens to be nil.
raise ArgumentError, "First argument is either selector or element to select, but nil found. Perhaps you called assert_select with an element that does not exist?"
- elsif @selected
+ elsif defined?(@selected) && @selected
root = HTML::Node.new(nil)
root.children.concat @selected
else