[ruby/yarp] fix: parsing a '%' expression with a CR but not a newline

Previously this failed an assertion and aborted.

https://github.com/ruby/yarp/commit/a037d942a8

1 files changed, 6 insertions, 0 deletions

diff --git a/test/yarp/errors_test.rb b/test/yarp/errors_test.rb
index 355e7a8aff..cab785d7c6 100644
--- a/test/yarp/errors_test.rb
+++ b/test/yarp/errors_test.rb
@@ -162,6 +162,12 @@ class ErrorsTest < Test::Unit::TestCase
     ]
   end
 
+  def test_cr_without_lf_in_percent_expression
+    assert_errors expression("%\r"), "%\r", [
+      ["Invalid %% token", 0..3],
+    ]
+  end
+
   def test_1_2_3
     assert_errors expression("(1, 2, 3)"), "(1, 2, 3)", [
       ["Expected to be able to parse an expression.", 2..2],