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#! /usr/bin/env ruby -S rspec
require 'spec_helper'
describe "the values_at function" do
let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
it "should exist" do
Puppet::Parser::Functions.function("values_at").should == "function_values_at"
end
it "should raise a ParseError if there is less than 1 arguments" do
lambda { scope.function_values_at([]) }.should( raise_error(Puppet::ParseError))
end
it "should raise a ParseError if you try to use a range where stop is greater then start" do
lambda { scope.function_values_at([['a','b'],["3-1"]]) }.should( raise_error(Puppet::ParseError))
end
it "should return a value at from an array" do
result = scope.function_values_at([['a','b','c'],"1"])
result.should(eq(['b']))
end
it "should return a value at from an array when passed a range" do
result = scope.function_values_at([['a','b','c'],"0-1"])
result.should(eq(['a','b']))
end
it "should return chosen values from an array when passed number of indexes" do
result = scope.function_values_at([['a','b','c'],["0","2"]])
result.should(eq(['a','c']))
end
it "should return chosen values from an array when passed ranges and multiple indexes" do
result = scope.function_values_at([['a','b','c','d','e','f','g'],["0","2","4-5"]])
result.should(eq(['a','c','e','f']))
end
end
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