eval_error.c (show_cause): check if cause is an Exception or not

Fixes [Bug #15447]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66475 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 0 deletions

diff --git a/test/ruby/test_exception.rb b/test/ruby/test_exception.rb
index 3582cb3de3..88bd095228 100644
--- a/test/ruby/test_exception.rb
+++ b/test/ruby/test_exception.rb
@@ -1341,6 +1341,15 @@ $stderr = $stdout; raise "\x82\xa0"') do |outs, errs, status|
     assert_in_out_err([], code, [], /Bug14566/, success: false, timeout: 2)
   end
 
+  def test_non_exception_cause
+    puts "foo"
+    code = "#{<<~"begin;"}\n#{<<~'end;'}"
+    begin;
+      raise "foo", cause: 1
+    end;
+    assert_in_out_err([], code, [], /foo/, success: false, timeout: 2)
+  end
+
   def test_super_in_method_missing
     assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
     begin;