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-rw-r--r--test/prism/result/warnings_test.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/test/prism/result/warnings_test.rb b/test/prism/result/warnings_test.rb
index 861f6d9999..b3817b631f 100644
--- a/test/prism/result/warnings_test.rb
+++ b/test/prism/result/warnings_test.rb
@@ -174,6 +174,10 @@ module Prism
assert_warning("if true\nelsif\nfalse; end", "end of line")
end
+ def test_numbered_reference
+ assert_warning("_ = _ = $999999999999999999999", "too big for a number variable, always nil")
+ end
+
def test_shareable_constant_value
assert_warning("foo # shareable_constant_value: none", "ignored")
assert_warning("\v # shareable_constant_value: none", "ignored")