Integer.sqrt argument check

* numeric.c (rb_int_s_isqrt): check if the argument is an integer.
  [Feature #13219]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57706 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/test/ruby/test_integer.rb b/test/ruby/test_integer.rb
index 05b0b68ccc..e0927c9ffe 100644
--- a/test/ruby/test_integer.rb
+++ b/test/ruby/test_integer.rb
@@ -466,6 +466,7 @@ class TestInteger < Test::Unit::TestCase
   end
 
   def test_square_root
+    assert_raise(TypeError) {Integer.sqrt("x")}
     assert_raise(Math::DomainError) {Integer.sqrt(-1)}
     assert_equal(0, Integer.sqrt(0))
     (1...4).each {|i| assert_equal(1, Integer.sqrt(i))}