1 files changed, 11 insertions, 2 deletions
diff --git a/spec/ruby/core/rational/inspect_spec.rb b/spec/ruby/core/rational/inspect_spec.rb
index 452cf9c5ae..edc5cffee9 100644
--- a/spec/ruby/core/rational/inspect_spec.rb
+++ b/spec/ruby/core/rational/inspect_spec.rb
@@ -1,5 +1,14 @@
-require File.expand_path('../../../shared/rational/inspect', __FILE__)
+require_relative "../../spec_helper"
 
 describe "Rational#inspect" do
-  it_behaves_like(:rational_inspect, :inspect)
+  it "returns a string representation of self" do
+    Rational(3, 4).inspect.should == "(3/4)"
+    Rational(-5, 8).inspect.should == "(-5/8)"
+    Rational(-1, -2).inspect.should == "(1/2)"
+
+    # Guard against the Mathn library
+    guard -> { !defined?(Math.rsqrt) } do
+      Rational(bignum_value, 1).inspect.should == "(#{bignum_value}/1)"
+    end
+  end
 end