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-rw-r--r--test/ripper/test_ripper.rb19
1 files changed, 19 insertions, 0 deletions
diff --git a/test/ripper/test_ripper.rb b/test/ripper/test_ripper.rb
index afe7183ff4f..cbd025d2ad4 100644
--- a/test/ripper/test_ripper.rb
+++ b/test/ripper/test_ripper.rb
@@ -98,4 +98,23 @@ class TestRipper::Ripper < Test::Unit::TestCase
assert_nil(Ripper.sexp(src), bug12651)
end;
end
+
+ # https://bugs.jruby.org/4176
+ def test_dedent_string
+ col = Ripper.dedent_string ' hello', 0
+ assert_equal 0, col
+ col = Ripper.dedent_string ' hello', 2
+ assert_equal 2, col
+ col = Ripper.dedent_string ' hello', 4
+ assert_equal 2, col
+
+ # lexing a squiggly heredoc triggers Ripper#dedent_string use
+ src = <<-END
+puts <<~END
+ hello
+end
+ END
+
+ assert_nothing_raised { Ripper.lex src }
+ end
end if ripper_test