1 files changed, 26 insertions, 23 deletions
diff --git a/spec/ruby/core/rational/ceil_spec.rb b/spec/ruby/core/rational/ceil_spec.rb
index d5bdadf3b6..0464eab101 100644
--- a/spec/ruby/core/rational/ceil_spec.rb
+++ b/spec/ruby/core/rational/ceil_spec.rb
@@ -1,45 +1,48 @@
 require_relative "../../spec_helper"
+require_relative "../integer/shared/integer_ceil_precision"
 
 describe "Rational#ceil" do
+  context "with values equal to integers" do
+    it_behaves_like :integer_ceil_precision, :Rational
+  end
+
   before do
     @rational = Rational(2200, 7)
   end
 
   describe "with no arguments (precision = 0)" do
-    it "returns an Integer" do
-      @rational.ceil.should be_kind_of(Integer)
-    end
+    it "returns the Integer value rounded toward positive infinity" do
+      @rational.ceil.should.eql? 315
 
-    it "returns the truncated value toward positive infinity" do
-      @rational.ceil.should == 315
-      Rational(1, 2).ceil.should == 1
-      Rational(-1, 2).ceil.should == 0
+      Rational(1, 2).ceil.should.eql? 1
+      Rational(-1, 2).ceil.should.eql? 0
+      Rational(1, 1).ceil.should.eql? 1
     end
   end
 
   describe "with a precision < 0" do
-    it "returns an Integer" do
-      @rational.ceil(-2).should be_kind_of(Integer)
-      @rational.ceil(-1).should be_kind_of(Integer)
-    end
+    it "moves the rounding point n decimal places left, returning an Integer" do
+      @rational.ceil(-3).should.eql? 1000
+      @rational.ceil(-2).should.eql? 400
+      @rational.ceil(-1).should.eql? 320
 
-    it "moves the truncation point n decimal places left" do
-      @rational.ceil(-3).should == 1000
-      @rational.ceil(-2).should == 400
-      @rational.ceil(-1).should == 320
+      Rational(100, 2).ceil(-1).should.eql? 50
+      Rational(100, 2).ceil(-2).should.eql? 100
+      Rational(-100, 2).ceil(-1).should.eql?(-50)
+      Rational(-100, 2).ceil(-2).should.eql?(0)
     end
   end
 
   describe "with precision > 0" do
-    it "returns a Rational" do
-      @rational.ceil(1).should be_kind_of(Rational)
-      @rational.ceil(2).should be_kind_of(Rational)
-    end
+    it "moves the rounding point n decimal places right, returning a Rational" do
+      @rational.ceil(1).should.eql? Rational(3143, 10)
+      @rational.ceil(2).should.eql? Rational(31429, 100)
+      @rational.ceil(3).should.eql? Rational(157143, 500)
 
-    it "moves the truncation point n decimal places right" do
-      @rational.ceil(1).should == Rational(3143, 10)
-      @rational.ceil(2).should == Rational(31429, 100)
-      @rational.ceil(3).should == Rational(157143, 500)
+      Rational(100, 2).ceil(1).should.eql? Rational(50, 1)
+      Rational(100, 2).ceil(2).should.eql? Rational(50, 1)
+      Rational(-100, 2).ceil(1).should.eql? Rational(-50, 1)
+      Rational(-100, 2).ceil(2).should.eql? Rational(-50, 1)
     end
   end
 end