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#! /usr/bin/env ruby -S rspec
require 'spec_helper'
describe "the range function" do
let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
it "exists" do
expect(Puppet::Parser::Functions.function("range")).to eq("function_range")
end
it "raises a ParseError if there is less than 1 arguments" do
expect { scope.function_range([]) }.to raise_error Puppet::ParseError, /Wrong number of arguments.*0 for 1/
end
describe 'with a letter range' do
it "returns a letter range" do
result = scope.function_range(["a","d"])
expect(result).to eq ['a','b','c','d']
end
it "returns a letter range given a step of 1" do
result = scope.function_range(["a","d","1"])
expect(result).to eq ['a','b','c','d']
end
it "returns a stepped letter range" do
result = scope.function_range(["a","d","2"])
expect(result).to eq ['a','c']
end
it "returns a stepped letter range given a negative step" do
result = scope.function_range(["a","d","-2"])
expect(result).to eq ['a','c']
end
end
describe 'with a number range' do
it "returns a number range" do
result = scope.function_range(["1","4"])
expect(result).to eq [1,2,3,4]
end
it "returns a number range given a step of 1" do
result = scope.function_range(["1","4","1"])
expect(result).to eq [1,2,3,4]
end
it "returns a stepped number range" do
result = scope.function_range(["1","4","2"])
expect(result).to eq [1,3]
end
it "returns a stepped number range given a negative step" do
result = scope.function_range(["1","4","-2"])
expect(result).to eq [1,3]
end
end
describe 'with a numeric-like string range' do
it "works with padded hostname like strings" do
expected = ("host01".."host10").to_a
expect(scope.function_range(["host01","host10"])).to eq expected
end
it "coerces zero padded digits to integers" do
expected = (0..10).to_a
expect(scope.function_range(["00", "10"])).to eq expected
end
end
describe 'with a numeric range' do
it "returns a range of numbers" do
expected = (1..10).to_a
expect(scope.function_range([1,10])).to eq expected
end
it "returns a range of numbers with step parameter" do
expected = (1..10).step(2).to_a
expect(scope.function_range([1,10,2])).to eq expected
end
it "works with mixed numeric like strings and numeric arguments" do
expected = (1..10).to_a
expect(scope.function_range(['1',10])).to eq expected
expect(scope.function_range([1,'10'])).to eq expected
end
end
end
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