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path: root/spec/unit/parser/functions/abs_spec.rb
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#!/usr/bin/env rspec
require 'spec_helper'

describe "the abs 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("abs").should == "function_abs"
  end

  it "should raise a ParseError if there is less than 1 arguments" do
    lambda { @scope.function_abs([]) }.should( raise_error(Puppet::ParseError))
  end

  it "should convert a negative number into a positive" do
    result = @scope.function_abs([-34])
    result.should(eq(34))
  end

end