require 'spec_helper'
require 'blazing/remote'

describe Blazing::Remote do

  before :each do
    @remote = Blazing::Remote.new
    @remote.instance_variable_set('@_dir', double('Dir', :chdir => nil))
  end

  describe '#post_receive' do
    before :each do
      recipes = []
      config = double('config', :load => double('actual_config', :recipes => recipes, :find_target => double('target', :recipes => recipes)))
      @remote.instance_variable_set('@_config', config)
      @remote.instance_variable_set('@runner', double('runner', :run => true))
    end

    it 'sets up the git dir' do
      @remote.should_receive(:set_git_dir)
      @remote.post_receive('sometarget')
    end

    it 'runs the recipes' do
      @remote.should_receive(:setup_and_run_recipes)
      @remote.post_receive('sometarget')
    end

    it 'resets the git repository' do
      @remote.should_receive(:reset_head!)
      @remote.post_receive('sometarget')
    end
  end

  describe '#gemfile_present?' do
    it 'checks if a Gemfile is in the cwd' do
      File.should_receive(:exists?).with('Gemfile')
      @remote.gemfile_present?
    end
  end

  describe '#set_git_dir' do
    it 'sets .git as gitdir if git dir is "."' do
      env = { 'GIT_DIR'=> '.' }
      @remote.instance_variable_set('@_env', env)
      @remote.set_git_dir
      @remote.instance_variable_get('@_env')['GIT_DIR'].should == '.git'
    end
  end

  describe '#reset_head!' do
    it 'does a git reset --hard HEAD' do
      runner = double('runner', :run => nil)
      @remote.instance_variable_set('@runner', runner)
      runner.should_receive(:run).with('git reset --hard HEAD')
      @remote.reset_head!
    end
  end

  describe '#config' do
    it 'loads the blazing config' do
      config = double('config', :load => nil)
      @remote.instance_variable_set('@_config', config)
      config.should_receive(:load)
      @remote.config
    end
  end

  describe '#use_rvm?' do
    context 'with rvm recipe enabled' do
      it 'returns true' do
        @remote.instance_variable_set('@recipes', double('rvm_recipe', :find => true, :delete_if => nil))
        @remote.use_rvm?.should be true
      end

      it 'deletes the rvm recipes from the recipes array' do
        @remote.instance_variable_set('@recipes', [double('rvm_recipe', :name => 'rvm')])
        @remote.use_rvm?
        @remote.instance_variable_get('@recipes').should be_blank
      end
    end

    context 'without rvm_recipe' do
      it 'returns false' do
        @remote.instance_variable_set('@recipes', double('rvm_recipe', :find => false, :delete_if => nil))
        @remote.use_rvm?.should be false
      end
    end
  end

  describe '#setup_and_run_recipes' do
    context 'when the target has no recipes' do
      it 'assigns the global recipes settings from the config' do
        recipe_probe = double('recipe_probe', :name => 'noname', :run => nil)
        global_config = double('config', :recipes => [recipe_probe])
        blazing_config_class = double('blazing_config', :load => global_config)
        @remote.instance_variable_set('@_config', blazing_config_class)
        @remote.setup_and_run_recipes
        @remote.instance_variable_get('@recipes').first.should be recipe_probe
      end
    end

    context 'when the target has recipes' do
      it 'does not touch the target recipes' do
        target_recipe_probe = double('target_recipe_probe', :name => 'target', :run => nil)
        global_recipe_probe = double('global_recipe_probe', :name => 'global', :run => nil)
        global_config = double('config', :recipes => [global_recipe_probe])
        blazing_config_class = double('blazing_config', :load => global_config)
        @remote.instance_variable_set('@_config', blazing_config_class)
        @remote.instance_variable_set('@recipes', [target_recipe_probe])
        @remote.setup_and_run_recipes
        @remote.instance_variable_get('@recipes').first.name.should == 'target'
      end
    end
  end

  describe '#run_recipes' do
    it 'runs all recipes' do
      recipes =  [double('one', :name => nil), double('two', :name => nil), double('three', :name => nil)]
      @remote.instance_variable_set('@recipes', recipes)
      recipes.each do |recipe|
        recipe.should_receive(:run)
      end
      @remote.run_recipes
    end
  end

  describe '#run_bootstrap_recipes' do
    it 'runs rvm recipe if it is enabled' do
      rvm_recipe = double('rvm_recipe', :name => 'rvm')
      @remote.instance_variable_set('@recipes', [rvm_recipe])
      rvm_recipe.should_receive(:run)
      @remote.run_bootstrap_recipes
    end
  end
end