Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/shared/rational/ceil.rb

@@ -0,0 +1,45 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe :rational_ceil, shared: true do
+  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 truncated value toward positive infinity" do
+      @rational.ceil.should == 315
+      Rational(1, 2).ceil.should == 1
+      Rational(-1, 2).ceil.should == 0
+    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 truncation point n decimal places left" do
+      @rational.ceil(-3).should == 1000
+      @rational.ceil(-2).should == 400
+      @rational.ceil(-1).should == 320
+    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 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)
+    end
+  end
+end