1 files changed, 6 insertions, 0 deletions
diff --git a/test/ruby/test_rational.rb b/test/ruby/test_rational.rb
index b289753347..a8cdf22a49 100644
--- a/test/ruby/test_rational.rb
+++ b/test/ruby/test_rational.rb
@@ -816,9 +816,15 @@ class Rational_Test < Test::Unit::TestCase
       assert_equal(nil, Rational("1/0", exception: false))
     }
     assert_nothing_raised(TypeError) {
+      assert_equal(nil, Rational(nil, exception: false))
+    }
+    assert_nothing_raised(TypeError) {
       assert_equal(nil, Rational(Object.new, exception: false))
     }
     assert_nothing_raised(TypeError) {
+      assert_equal(nil, Rational(1, nil, exception: false))
+    }
+    assert_nothing_raised(TypeError) {
       assert_equal(nil, Rational(1, Object.new, exception: false))
     }