test/test_trigger.rb

   1 require File.dirname(__FILE__) + '/helper'
   2
   3 class TestTrigger < Test::Unit::TestCase
   4   def setup
   5     Trigger.reset
   6   end
   7
   8   # base case
   9
  10   def test_should_have_empty_triggers
  11     assert_equal({}, Trigger.triggers)
  12   end
  13
  14   # register
  15
  16   def test_register_should_add_condition_to_triggers
  17     c = Condition.new
  18     c.watch = stub(:name => 'foo')
  19     Trigger.register(c)
  20
  21     assert_equal({'foo' => [c]}, Trigger.triggers)
  22   end
  23
  24   def test_register_should_add_condition_to_triggers_twice
  25     watch = stub(:name => 'foo')
  26     c = Condition.new
  27     c.watch = watch
  28     Trigger.register(c)
  29
  30     c2 = Condition.new
  31     c2.watch = watch
  32     Trigger.register(c2)
  33
  34     assert_equal({'foo' => [c, c2]}, Trigger.triggers)
  35   end
  36
  37   # deregister
  38
  39   def test_deregister_should_remove_condition_from_triggers
  40     c = Condition.new
  41     c.watch = stub(:name => 'foo')
  42     Trigger.register(c)
  43     Trigger.deregister(c)
  44
  45     assert_equal({}, Trigger.triggers)
  46   end
  47
  48   # broadcast
  49
  50   def test_broadcast_should_call_process_on_each_condition
  51     c = Condition.new
  52     c.watch = stub(:name => 'foo')
  53     Trigger.register(c)
  54
  55     c.expects(:process).with(:state_change, [:up, :start])
  56
  57     Trigger.broadcast(c.watch, :state_change, [:up, :start])
  58   end
  59 end