1 files changed, 48 insertions, 0 deletions
diff --git a/spec/ruby/core/numeric/shared/rect.rb b/spec/ruby/core/numeric/shared/rect.rb
new file mode 100644
index 0000000000..cda5fede7f
--- /dev/null
+++ b/spec/ruby/core/numeric/shared/rect.rb
@@ -0,0 +1,48 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+describe :numeric_rect, shared: true do
+  before :each do
+    @numbers = [
+      20,             # Integer
+      398.72,         # Float
+      Rational(3, 4), # Rational
+      99999999**99, # Bignum
+      infinity_value,
+      nan_value
+    ]
+  end
+
+  it "returns an Array" do
+    @numbers.each do |number|
+      number.send(@method).should be_an_instance_of(Array)
+    end
+  end
+
+  it "returns a two-element Array" do
+    @numbers.each do |number|
+      number.send(@method).size.should == 2
+    end
+  end
+
+  it "returns self as the first element" do
+   @numbers.each do |number|
+     if Float === number and number.nan?
+       number.send(@method).first.nan?.should be_true
+     else
+       number.send(@method).first.should == number
+     end
+   end
+  end
+
+  it "returns 0 as the last element" do
+   @numbers.each do |number|
+     number.send(@method).last.should == 0
+   end
+  end
+
+  it "raises an ArgumentError if given any arguments" do
+   @numbers.each do |number|
+     lambda { number.send(@method, number) }.should raise_error(ArgumentError)
+   end
+  end
+end