--- /dev/null
+#! /usr/bin/env ruby -S rspec
+require 'spec_helper'
+
+describe "the is_float function" do
+ let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+ it "should exist" do
+ expect(Puppet::Parser::Functions.function("is_float")).to eq("function_is_float")
+ end
+
+ it "should raise a ParseError if there is less than 1 arguments" do
+ expect { scope.function_is_float([]) }.to( raise_error(Puppet::ParseError))
+ end
+
+ it "should return true if a float" do
+ result = scope.function_is_float(["0.12"])
+ expect(result).to(eq(true))
+ end
+
+ it "should return false if a string" do
+ result = scope.function_is_float(["asdf"])
+ expect(result).to(eq(false))
+ end
+
+ it "should return false if an integer" do
+ result = scope.function_is_float(["3"])
+ expect(result).to(eq(false))
+ end
+ it "should return true if a float is created from an arithmetical operation" do
+ result = scope.function_is_float([3.2*2])
+ expect(result).to(eq(true))
+ end
+end