#!/usr/bin/env ruby

require File.dirname(__FILE__) + '/../../../spec_helper'

require 'puppet/indirector/node/exec'

describe Puppet::Node::Exec do
    before do
        @indirection = mock 'indirection'
        Puppet.settings.stubs(:value).with(:external_nodes).returns("/echo")
        @searcher = Puppet::Node::Exec.new
    end

    it "should use the version of the facts as its version" do
        version = mock 'version'
        Puppet::Node::Facts.expects(:version).with("me").returns version
        @searcher.version("me").should equal(version)
    end

    describe "when constructing the command to run" do
        it "should use the external_node script as the command" do
            Puppet.expects(:[]).with(:external_nodes).returns("/bin/echo")
            @searcher.command.should == %w{/bin/echo}
        end

        it "should throw an exception if no external node command is set" do
            Puppet.expects(:[]).with(:external_nodes).returns("none")
            proc { @searcher.find("foo") }.should raise_error(ArgumentError)
        end
    end

    describe "when handling the results of the command" do
        before do
            @node = stub 'node', :fact_merge => nil
            @name = "yay"
            Puppet::Node.expects(:new).with(@name).returns(@node)
            @result = {}
            # Use a local variable so the reference is usable in the execute() definition.
            result = @result
            @searcher.meta_def(:execute) do |command|
                return YAML.dump(result)
            end
        end

        it "should translate the YAML into a Node instance" do
            # Use an empty hash
            @searcher.find(@name).should equal(@node)
        end

        it "should set the resulting parameters as the node parameters" do
            @result[:parameters] = {"a" => "b", "c" => "d"}
            @node.expects(:parameters=).with "a" => "b", "c" => "d"
            @searcher.find(@name)
        end

        it "should set the resulting classes as the node classes" do
            @result[:classes] = %w{one two}
            @node.expects(:classes=).with %w{one two}
            @searcher.find(@name)
        end

        it "should merge the node's facts with its parameters" do
            @node.expects(:fact_merge)
            @searcher.find(@name)
        end

        it "should set the node's environment if one is provided" do
            @result[:environment] = "yay"
            @node.expects(:environment=).with "yay"
            @searcher.find(@name)
        end
    end
end