#
# Copyright (c) 2011 RightScale Inc
#
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# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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require File.expand_path('../spec_helper', __FILE__)

describe RightScale::CloudUtilities do
  before(:each) do
    @ohai = Ohai::System.new
    flexmock(@ohai).should_receive(:require_plugin).and_return(true)
  end

  context '#can_contact_metadata_server?' do
    it 'server responds' do
      t = flexmock("connection")
      flexmock(t).should_receive(:connect_nonblock).and_raise(Errno::EINPROGRESS)
      flexmock(Socket).should_receive(:new).and_return(t)

      flexmock(IO).should_receive(:select).and_return([[], [1], []])

      RightScale::CloudUtilities.can_contact_metadata_server?("1.1.1.1", 80).should be_true
    end

    it 'fails because server responds with nothing' do
      t = flexmock("connection")
      flexmock(t).should_receive(:connect_nonblock).and_raise(Errno::EINPROGRESS)
      flexmock(Socket).should_receive(:new).and_return(t)

      flexmock(IO).should_receive(:select).and_return([[], nil, []])

      RightScale::CloudUtilities.can_contact_metadata_server?("1.1.1.1", 80).should be_false
    end

    it 'fails to connect to server' do
      t = flexmock("connection")
      flexmock(t).should_receive(:connect_nonblock)
      flexmock(Socket).should_receive(:new).and_return(t)

      RightScale::CloudUtilities.can_contact_metadata_server?("1.1.1.1", 80).should be_false
    end

    it 'fails because of a system error' do
      t = flexmock("connection")
      flexmock(t).should_receive(:connect_nonblock).and_raise(Errno::ENOENT)
      flexmock(Socket).should_receive(:new).and_return(t)

      RightScale::CloudUtilities.can_contact_metadata_server?("1.1.1.1", 80).should be_false
    end
  end

end
