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require 'spec_helper'
require 'puppet/util/resource_template'
describe Puppet::Util::ResourceTemplate do
describe "when initializing" do
it "should fail if the template does not exist" do
expect(Puppet::FileSystem).to receive(:exist?).with("/my/template").and_return(false)
expect { Puppet::Util::ResourceTemplate.new("/my/template", double('resource')) }.to raise_error(ArgumentError)
end
it "should not create the ERB template" do
expect(ERB).not_to receive(:new)
expect(Puppet::FileSystem).to receive(:exist?).with("/my/template").and_return(true)
Puppet::Util::ResourceTemplate.new("/my/template", double('resource'))
end
end
describe "when evaluating" do
before do
allow(Puppet::FileSystem).to receive(:exist?).and_return(true)
allow(Puppet::FileSystem).to receive(:read).and_return("eh")
@template = double('template', :result => nil)
allow(ERB).to receive(:new).and_return(@template)
@resource = double('resource')
@wrapper = Puppet::Util::ResourceTemplate.new("/my/template", @resource)
end
it "should set all of the resource's parameters as instance variables" do
expect(@resource).to receive(:to_hash).and_return(:one => "uno", :two => "dos")
expect(@template).to receive(:result) do |bind|
expect(eval("@one", bind)).to eq("uno")
expect(eval("@two", bind)).to eq("dos")
end
@wrapper.evaluate
end
it "should create a template instance with the contents of the file" do
expect(Puppet::FileSystem).to receive(:read).with("/my/template", {:encoding => 'utf-8'}).and_return("yay")
expect(Puppet::Util).to receive(:create_erb).with("yay").and_return(@template)
allow(@wrapper).to receive(:set_resource_variables)
@wrapper.evaluate
end
it "should return the result of the template" do
allow(@wrapper).to receive(:set_resource_variables)
expect(@wrapper).to receive(:binding).and_return("mybinding")
expect(@template).to receive(:result).with("mybinding").and_return("myresult")
expect(@wrapper.evaluate).to eq("myresult")
end
end
end
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