require 'mathn' require_relative '../fixtures/classes' describe :mathn_math_sqrt, shared: true do it "returns the square root for Rational numbers" do @object.send(:sqrt, Rational(9, 25)).should == Rational(3, 5) @object.send(:sqrt, 16/64).should == Rational(1, 2) end it "returns the square root for Complex numbers" do @object.send(:sqrt, Complex(1, 0)).should == 1 end it "returns the square root for positive numbers" do @object.send(:sqrt, 1).should == 1 @object.send(:sqrt, 4.0).should == 2.0 @object.send(:sqrt, 12.34).should == Math.sqrt!(12.34) end it "returns the square root for negative numbers" do @object.send(:sqrt, -9).should == Complex(0, 3) @object.send(:sqrt, -5.29).should == Complex(0, 2.3) @object.send(:sqrt, -16/64).should == Complex(0, 1/2) end end