Update to ruby/spec@241f9e7

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 2 deletions

diff --git a/spec/ruby/core/rational/integer_spec.rb b/spec/ruby/core/rational/integer_spec.rb
index 451e42ee14..0f9a3bdead 100644
--- a/spec/ruby/core/rational/integer_spec.rb
+++ b/spec/ruby/core/rational/integer_spec.rb
@@ -1,6 +1,9 @@
 describe "Rational#integer?" do
-  it "returns false for a rational with a numerator and no denominator" do
-    Rational(20).integer?.should be_false
+  # Guard against the Mathn library
+  guard -> { !defined?(Math.rsqrt) } do
+    it "returns false for a rational with a numerator and no denominator" do
+      Rational(20).integer?.should be_false
+    end
   end
 
   it "returns false for a rational with a numerator and a denominator" do