fixed test to be more accurate
fixed test to be more accurate

EntilZha/PyFunctional,ChuyuHsu/ScalaFunctional,EntilZha/ScalaFunctional,lucidfrontier45/ScalaFunctional,EntilZha/PyFunctional,ChuyuHsu/ScalaFunctional,lucidfrontier45/ScalaFunctional,EntilZha/ScalaFunctional