[ruby/irb] Suppress crashing when EncodingError has occurred without lineno

https://github.com/ruby/irb/commit/13572d8cdc

1 files changed, 7 insertions, 0 deletions

diff --git a/test/irb/test_context.rb b/test/irb/test_context.rb
index 8a6521bf69..d03cc30c78 100644
--- a/test/irb/test_context.rb
+++ b/test/irb/test_context.rb
@@ -63,6 +63,13 @@ module TestIRB
       assert_not_match(/rescue _\.class/, e.message)
     end
 
+    def test_evaluate_with_encoding_error_without_lineno
+      assert_raise_with_message(EncodingError, /invalid symbol/) {
+        @context.evaluate(%q[{"\xAE": 1}], 1)
+        # The backtrace of this invalid encoding hash doesn't contain lineno.
+      }
+    end
+
     def test_evaluate_with_onigmo_warning
       assert_warning("(irb):1: warning: character class has duplicated range: /[aa]/\n") do
         @context.evaluate('/[aa]/', 1)