1 files changed, 57 insertions, 0 deletions
diff --git a/spec/ruby/optional/capi/rational_spec.rb b/spec/ruby/optional/capi/rational_spec.rb
new file mode 100644
index 0000000000..e3144666d3
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+++ b/spec/ruby/optional/capi/rational_spec.rb
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+require File.expand_path('../spec_helper', __FILE__)
+
+load_extension("rational")
+
+describe :rb_Rational, shared: true do
+  it "creates a new Rational with numerator and denominator" do
+    @r.send(@method, 1, 2).should == Rational(1, 2)
+  end
+end
+
+describe :rb_rational_new, shared: true do
+  it "creates a normalized Rational" do
+    r = @r.send(@method, 10, 4)
+    r.numerator.should == 5
+    r.denominator.should == 2
+  end
+end
+
+describe "CApiRationalSpecs" do
+  before :each do
+    @r = CApiRationalSpecs.new
+  end
+
+  describe "rb_Rational" do
+    it_behaves_like :rb_Rational, :rb_Rational
+  end
+
+  describe "rb_Rational2" do
+    it_behaves_like :rb_Rational, :rb_Rational2
+  end
+
+  describe "rb_Rational1" do
+    it "creates a new Rational with numerator and denominator of 1" do
+      @r.rb_Rational1(5).should == Rational(5, 1)
+    end
+  end
+
+  describe "rb_rational_new" do
+    it_behaves_like :rb_rational_new, :rb_rational_new
+  end
+
+  describe "rb_rational_new2" do
+    it_behaves_like :rb_rational_new, :rb_rational_new2
+  end
+
+  describe "rb_rational_num" do
+    it "returns the numerator of a Rational" do
+      @r.rb_rational_num(Rational(7, 2)).should == 7
+    end
+  end
+
+  describe "rb_rational_den" do
+    it "returns the denominator of a Rational" do
+      @r.rb_rational_den(Rational(7, 2)).should == 2
+    end
+  end
+end