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-rw-r--r--test/prism/format_errors_test.rb7
1 files changed, 7 insertions, 0 deletions
diff --git a/test/prism/format_errors_test.rb b/test/prism/format_errors_test.rb
index 34d320a7b6..bc0b26165d 100644
--- a/test/prism/format_errors_test.rb
+++ b/test/prism/format_errors_test.rb
@@ -12,6 +12,13 @@ module Prism
| ^ unexpected '<', ignoring it
| ^ unexpected '>', ignoring it
ERROR
+
+ assert_equal <<~'ERROR', Debug.format_errors('"%W"\u"', false)
+ > 1 | "%W"\u"
+ | ^ expected a newline or semicolon after the statement
+ | ^ invalid token
+ | ^ expected a closing delimiter for the string literal
+ ERROR
end
end
end