--- /dev/null
+#!/usr/bin/env rspec
+require 'spec_helper'
+
+describe "the is_numeric function" do
+ before :all do
+ Puppet::Parser::Functions.autoloader.loadall
+ end
+
+ before :each do
+ @scope = Puppet::Parser::Scope.new
+ end
+
+ it "should exist" do
+ Puppet::Parser::Functions.function("is_numeric").should == "function_is_numeric"
+ end
+
+ it "should raise a ParseError if there is less than 1 argument" do
+ lambda { @scope.function_is_numeric([]) }.should( raise_error(Puppet::ParseError))
+ end
+
+ it "should return true if an integer" do
+ result = @scope.function_is_numeric(["3"])
+ result.should(eq(true))
+ end
+
+ it "should return true if a float" do
+ result = @scope.function_is_numeric(["3.2"])
+ result.should(eq(true))
+ end
+
+ it "should return false if a string" do
+ result = @scope.function_is_numeric(["asdf"])
+ result.should(eq(false))
+ end
+
+end