spec/unit/generators/agent_generator_spec.rb

   1 #! /usr/bin/env rspec
   2
   3 require 'spec_helper'
   4
   5 module MCollective
   6   module Generators
   7       describe AgentGenerator do
   8
   9         describe "#create_ddl" do
  10
  11           before :each do
  12             AgentGenerator.any_instance.stubs(:create_plugin_content)
  13             AgentGenerator.any_instance.stubs(:create_plugin_string)
  14             AgentGenerator.any_instance.stubs(:write_plugins)
  15             AgentGenerator.any_instance.expects(:create_metadata_string).returns("metadata\n")
  16           end
  17
  18           it "should create a ddl with nothing but metadata if no actions are specified" do
  19             result = AgentGenerator.new("foo").ddl
  20             result.should == "metadata\n"
  21           end
  22
  23           it "should add action strings to metadata if there are actions specfied" do
  24             result = AgentGenerator.new("foo", ["action1", "action2"]).ddl
  25             expected = File.read(File.join(File.dirname(__FILE__), "snippets", "agent_ddl"))
  26             result.should == expected
  27           end
  28         end
  29
  30         describe "#create_plugin_content" do
  31           before :each do
  32             AgentGenerator.any_instance.stubs(:create_plugin_string)
  33             AgentGenerator.any_instance.stubs(:write_plugins)
  34             AgentGenerator.any_instance.stubs(:create_metadata_string).returns("metadata\n")
  35             AgentGenerator.any_instance.stubs(:create_ddl)
  36           end
  37
  38           it "should create the correct pluginf ile content with actions if they are specified" do
  39             AgentGenerator.any_instance.stubs(:create_metadata_string).returns("meta\n")
  40             result = AgentGenerator.new("foo", ["action1", "action2"]).content
  41             result.should == "      action \"action1\" do\n      end\n\n      action \"action2\" do\n      end\n"
  42           end
  43         end
  44
  45         describe "#action_help" do
  46           before :each do
  47             AgentGenerator.any_instance.stubs(:create_plugin_content)
  48             AgentGenerator.any_instance.stubs(:create_plugin_string)
  49             AgentGenerator.any_instance.stubs(:write_plugins)
  50             AgentGenerator.any_instance.stubs(:create_metadata_string).returns("metadata\n")
  51           end
  52
  53           it "should load and return the action_help snippet" do
  54             erb = mock
  55             erb.stubs(:result).returns("result")
  56             File.stubs(:dirname).returns("/tmp")
  57             File.expects(:read).with("/tmp/templates/action_snippet.erb").returns("result")
  58             ERB.expects(:new).with("result").returns(erb)
  59             AgentGenerator.new("foo", ["action"])
  60           end
  61
  62           it "should raise an error if the action_help snippet does not exist" do
  63             File.stubs(:dirname).returns("/tmp")
  64             File.stubs(:read).raises(Errno::ENOENT, "No such file or directory")
  65             expect{
  66               AgentGenerator.new("foo", ["action"])
  67             }.to raise_error(Errno::ENOENT)
  68           end
  69         end
  70       end
  71   end
  72 end