path: root/spec/unit/node_spec.rb

#
# Author:: Adam Jacob (<adam@hjksolutions.com>)
# Copyright:: Copyright (c) 2008 HJK Solutions, LLC
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# 
#     http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

require File.expand_path(File.join(File.dirname(__FILE__), "..", "spec_helper"))

describe Chef::Node, "new method" do
  before(:each) do
    Chef::Config.node_path(File.join(File.dirname(__FILE__), "..", "data", "nodes"))
    @node = Chef::Node.new()
  end
  
  it "should create a new Chef::Node" do
     @node.should be_a_kind_of(Chef::Node)
  end
end

describe Chef::Node, "name" do
  before(:each) do
    Chef::Config.node_path(File.join(File.dirname(__FILE__), "..", "data", "nodes"))
    @node = Chef::Node.new()
  end
  
  it "should allow you to set a name with name(something)" do
    lambda { @node.name("latte") }.should_not raise_error
  end
  
  it "should return the name with name()" do
    @node.name("latte")
    @node.name.should eql("latte")
  end
  
  it "should always have a string for name" do
    lambda { @node.name(Hash.new) }.should raise_error(ArgumentError)
  end
  
end

describe Chef::Node, "attributes" do
  before(:each) do
    Chef::Config.node_path(File.join(File.dirname(__FILE__), "..", "data", "nodes"))
    @node = Chef::Node.new()
  end
  
  it "should have attributes" do
    @node.attribute.should be_a_kind_of(Hash)
  end
  
  it "should allow attributes to be accessed by name or symbol directly on node[]" do
    @node.attribute["locust"] = "something"
    @node[:locust].should eql("something")
    @node["locust"].should eql("something")
  end
  
  it "should return nil if it cannot find an attribute with node[]" do
    @node["secret"].should eql(nil)
  end
  
  it "should allow you to set an attribute via node[]=" do
    @node["secret"] = "shush"
    @node["secret"].should eql("shush")
  end
  
  it "should allow you to query whether an attribute exists with attribute?" do
    @node.attribute["locust"] = "something"
    @node.attribute?("locust").should eql(true)
    @node.attribute?("no dice").should eql(false)
  end

  it "should allow you to set an attribute via method_missing" do
    @node.sunshine "is bright"
    @node.attribute[:sunshine].should eql("is bright")
  end
  
  it "should allow you get get an attribute via method_missing" do
    @node.sunshine "is bright"
    @node.sunshine.should eql("is bright")
  end
  
  it "should raise an ArgumentError if you ask for an attribute that doesn't exist via method_missing" do
    lambda { @node.sunshine }.should raise_error(ArgumentError)
  end

  it "should allow you to iterate over attributes with each_attribute" do
    @node.sunshine "is bright"
    @node.canada "is a nice place"
    seen_attributes = Hash.new
    @node.each_attribute do |a,v|
      seen_attributes[a] = v
    end
    seen_attributes.should have_key(:sunshine)
    seen_attributes.should have_key(:canada)
    seen_attributes[:sunshine].should == "is bright"
    seen_attributes[:canada].should == "is a nice place"
  end

end

describe Chef::Node, "recipes" do
  before(:each) do
    Chef::Config.node_path(File.join(File.dirname(__FILE__), "..", "data", "nodes"))
    @node = Chef::Node.new()
  end
  
  it "should have an array of recipes that should be applied" do
    @node.recipes.should be_a_kind_of(Array)
  end
  
  it "should allow you to query whether or not it has a recipe applied with recipe?" do
    @node.recipes << "sunrise"
    @node.recipe?("sunrise").should eql(true)
    @node.recipe?("not at home").should eql(false)
  end
  
  it "should allow you to set recipes with arguments" do
    @node.recipes "one", "two"
    @node.recipe?("one").should eql(true)
    @node.recipe?("two").should eql(true)
  end
  
end

describe Chef::Node, "from file" do
  before(:each) do
    Chef::Config.node_path(File.join(File.dirname(__FILE__), "..", "data", "nodes"))
    @node = Chef::Node.new()
  end
  
  it "should load a node from a ruby file" do
    @node.from_file(File.join(File.dirname(__FILE__), "..", "data", "nodes", "test.rb"))
    @node.name.should eql("test.example.com short")
    @node.sunshine.should eql("in")
    @node.something.should eql("else")
    @node.recipes.should eql(["operations-master", "operations-monitoring"])
  end
  
  it "should raise an exception if the file cannot be found or read" do
    lambda { @node.from_file("/tmp/monkeydiving") }.should raise_error(IOError)
  end
end

describe Chef::Node, "find_file" do
  before(:each) do
    Chef::Config.node_path(File.join(File.dirname(__FILE__), "..", "data", "nodes"))
    @node = Chef::Node.new()
  end
    
  it "should load a node from a file by fqdn" do
    @node.find_file("test.example.com")
    @node.name.should == "test.example.com"
  end
  
  it "should load a node from a file by hostname" do
    File.stub!(:exists?).and_return(true)
    File.should_receive(:exists?).with(File.join(Chef::Config[:node_path], "test.example.com.rb")).and_return(false)
    @node.find_file("test.example.com")
    @node.name.should == "test.example.com short"
  end
  
  it "should load a node from the default file" do
    File.stub!(:exists?).and_return(true)
    File.should_receive(:exists?).with(File.join(Chef::Config[:node_path], "test.example.com.rb")).and_return(false)
    File.should_receive(:exists?).with(File.join(Chef::Config[:node_path], "test.rb")).and_return(false)
    @node.find_file("test.example.com")
    @node.name.should == "test.example.com default"
  end
  
  it "should raise an ArgumentError if it cannot find any node file at all" do
    File.stub!(:exists?).and_return(true)
    File.should_receive(:exists?).with(File.join(Chef::Config[:node_path], "test.example.com.rb")).and_return(false)
    File.should_receive(:exists?).with(File.join(Chef::Config[:node_path], "test.rb")).and_return(false)
    File.should_receive(:exists?).with(File.join(Chef::Config[:node_path], "default.rb")).and_return(false)
    lambda { @node.find_file("test.example.com") }.should raise_error(ArgumentError)
  end
end

describe Chef::Node, "json" do
  before(:each) do
    Chef::Config.node_path(File.join(File.dirname(__FILE__), "..", "data", "nodes"))
    @node = Chef::Node.new()
  end
  
  it "should serialize itself as json" do
    @node.find_file("test.example.com")
    json = @node.to_json()
    json.should =~ /json_class/
    json.should =~ /name/
    json.should =~ /attributes/
    json.should =~ /recipes/
  end
  
  it "should deserialize itself from json" do
    @node.find_file("test.example.com")
    json = @node.to_json
    serialized_node = JSON.parse(json)
    serialized_node.should be_a_kind_of(Chef::Node)
    serialized_node.name.should eql(@node.name)
    @node.each_attribute do |k,v|
      serialized_node[k].should eql(v)
    end
    serialized_node.recipes.should eql(@node.recipes)
  end
end

describe Chef::Node, "to_index" do
  before(:each) do
    Chef::Config.node_path(File.join(File.dirname(__FILE__), "..", "data", "nodes"))
    @node = Chef::Node.new()
    @node.foo("bar")
  end
  
  it "should return a hash with :index attributes" do
    @node.name("airplane")
    @node.to_index.should == { :foo => "bar", :index_name => "node", :id => "node_airplane", :name => "airplane" }
  end
end


describe Chef::Node, "to_s" do
  before(:each) do
    Chef::Config.node_path(File.join(File.dirname(__FILE__), "..", "data", "nodes"))
    @node = Chef::Node.new()
  end
  
  it "should turn into a string like node[name]" do
    @node.name("airplane")
    @node.to_s.should eql("node[airplane]")
  end
end

describe Chef::Node, "list" do  
  before(:each) do
    mock_couch = mock("Chef::CouchDB")
    mock_couch.stub!(:list).and_return(
    {
      "rows" => [
        {
          "value" => "a",
          "key"   => "avenue"
        }
      ]
    }
    )
    Chef::CouchDB.stub!(:new).and_return(mock_couch)    
  end
  
  it "should retrieve a list of nodes from CouchDB" do
    Chef::Node.list.should eql(["avenue"])
  end
  
  it "should return just the ids if inflate is false" do
    Chef::Node.list(false).should eql(["avenue"])
  end
  
  it "should return the full objects if inflate is true" do
    Chef::Node.list(true).should eql(["a"])
  end
end

describe Chef::Node, "load" do
  it "should load a node from couchdb by name" do
    mock_couch = mock("Chef::CouchDB")
    mock_couch.should_receive(:load).with("node", "coffee").and_return(true)
    Chef::CouchDB.stub!(:new).and_return(mock_couch)
    Chef::Node.load("coffee")
  end
end

describe Chef::Node, "destroy" do
  it "should delete this node from couchdb" do
    mock_couch = mock("Chef::CouchDB")
    mock_couch.should_receive(:delete).with("node", "bob", 1).and_return(true)
    Chef::CouchDB.stub!(:new).and_return(mock_couch)
    node = Chef::Node.new
    node.name "bob"
    node.couchdb_rev = 1
    Chef::Queue.should_receive(:send_msg).with(:queue, :remove, node)
    node.destroy
  end
end

describe Chef::Node, "save" do
  before(:each) do
    @mock_couch = mock("Chef::CouchDB")
    @mock_couch.stub!(:store).and_return({ "rev" => 33 })
    Chef::CouchDB.stub!(:new).and_return(@mock_couch)
    Chef::Queue.stub!(:send_msg).and_return(true)
    @node = Chef::Node.new
    @node.name "bob"
    @node.couchdb_rev = 1
  end
  
  it "should save the node to couchdb" do
    Chef::Queue.should_receive(:send_msg).with(:queue, :index, @node)
    @mock_couch.should_receive(:store).with("node", "bob", @node).and_return({ "rev" => 33 })
    @node.save
  end
  
  it "should store the new couchdb_rev" do
    @node.save
    @node.couchdb_rev.should eql(33)
  end
end

describe Chef::Node, "create_design_document" do
  it "should create our design document" do
    mock_couch = mock("Chef::CouchDB")
    mock_couch.should_receive(:create_design_document).with("nodes", Chef::Node::DESIGN_DOCUMENT)
    Chef::CouchDB.stub!(:new).and_return(mock_couch)
    Chef::Node.create_design_document
  end
end