module RubyQA
  require 'erb'
  class Test
    DEFAULT_OPTIONS={
      :site          => "",
      :cluster       => false,
      :has_key       => "",
    }.freeze

    attr_reader :name, :options, :proc

    def initialize (name, options ={}, &test_block)
      @tests = Hash.new
      @name = name
      @options = DEFAULT_OPTIONS.merge(options)
      @test = test_block
      @description = ""
      if options[:description]
        @description=options[:description]
      end
    end

    def valid_host(host)
      ## By default if options weren't changed, then
      ## we just assume it is to be tested against all 
      ## provided hosts
      is_valid = 0
      if @options == DEFAULT_OPTIONS
        return true
      end

      DEFAULT_OPTIONS.each do |key,value|
        if @options[key] != value and host[key] != @options[key]
          return false
        end
      end

      return true
    end

    def run (host)
      test_status = "N/A"
      if @test.call(host)
        test_status = "PASSED"
      else
        test_status = "FAILED"
      end
      @tests[host.name]=test_status
    end

    def report
      if @tests.count == 0
        return
      end
      template = ERB.new <<EOF, :trim_mode => '-'
==============================================
Test : "<%= @name %>"
<% if not @description.empty? -%>
Description : "<%= @description %>
<% end -%>
==============================================
<% @tests.each do |key,val| -%>
<%= key %> : <%= val %>
<% end -%>

EOF
    template.result(binding)
    end
  end
end