test/test_watch.rb

   1 require File.dirname(__FILE__) + '/helper'
   2
   3 class TestWatch < Test::Unit::TestCase
   4   def setup
   5     @watch = Watch.new(nil)
   6   end
   7
   8   def test_should_have_empty_start_conditions
   9     assert_equal [], @watch.conditions[:start]
  10   end
  11
  12   def test_should_have_empty_restart_conditions
  13     assert_equal [], @watch.conditions[:restart]
  14   end
  15
  16   def test_should_have_standard_attributes
  17     assert_nothing_raised do
  18       @watch.name = 'foo'
  19       @watch.start = 'start'
  20       @watch.stop = 'stop'
  21       @watch.restart = 'restart'
  22       @watch.interval = 30
  23       @watch.grace = 5
  24     end
  25   end
  26
  27   # _if methods
  28
  29   def test_start_if_should_modify_action_within_scope
  30     assert_equal nil, @watch.instance_variable_get(:@action)
  31     @watch.start_if do |w|
  32       assert_equal :start, @watch.instance_variable_get(:@action)
  33     end
  34     assert_equal nil, @watch.instance_variable_get(:@action)
  35   end
  36
  37   def test_restart_if_should_modify_action_within_scope
  38     assert_equal nil, @watch.instance_variable_get(:@action)
  39     @watch.restart_if do |w|
  40       assert_equal :restart, @watch.instance_variable_get(:@action)
  41     end
  42     assert_equal nil, @watch.instance_variable_get(:@action)
  43   end
  44
  45   # condition
  46
  47   def test_start_condition_should_record_condition_in_correct_list
  48     cond = nil
  49     @watch.interval = 0
  50     @watch.start_if do |w|
  51       w.condition(:fake_poll_condition) { |c| cond = c }
  52     end
  53     assert_equal 1, @watch.conditions[:start].size
  54     assert_equal cond, @watch.conditions[:start].first
  55   end
  56
  57   def test_restart_condition_should_record_condition_in_correct_list
  58     cond = nil
  59     @watch.interval = 0
  60     @watch.restart_if do |w|
  61       w.condition(:fake_poll_condition) { |c| cond = c }
  62     end
  63     assert_equal 1, @watch.conditions[:restart].size
  64     assert_equal cond, @watch.conditions[:restart].first
  65   end
  66
  67   def test_condition_called_from_outside_if_block_should_raise
  68     assert_raise AbortCalledError do
  69       @watch.condition(:fake_poll_condition) { |c| cond = c }
  70     end
  71   end
  72
  73   def test_condition_should_be_block_optional
  74     @watch.interval = 0
  75     @watch.start_if do |w|
  76       w.condition(:always)
  77     end
  78     assert_equal 1, @watch.conditions[:start].size
  79   end
  80
  81   def test_poll_condition_should_inherit_interval_from_watch_if_not_specified
  82     @watch.interval = 27
  83     @watch.start_if do |w|
  84       w.condition(:fake_poll_condition)
  85     end
  86     assert_equal 27, @watch.conditions[:start].first.interval
  87   end
  88
  89   def test_poll_condition_should_abort_if_no_interval_and_no_watch_interval
  90     assert_raise AbortCalledError do
  91       @watch.start_if do |w|
  92         w.condition(:fake_poll_condition)
  93       end
  94     end
  95   end
  96
  97   def test_condition_should_allow_generation_of_subclasses_of_poll_or_event
  98     @watch.interval = 27
  99     assert_nothing_raised do
 100       @watch.start_if do |w|
 101         w.condition(:fake_poll_condition)
 102         w.condition(:fake_event_condition)
 103       end
 104     end
 105   end
 106
 107   def test_condition_should_abort_if_not_subclass_of_poll_or_event
 108     assert_raise AbortCalledError do
 109       @watch.start_if do |w|
 110         w.condition(:fake_condition) { |c| }
 111       end
 112     end
 113   end
 114
 115   # behavior
 116
 117   def test_behavior_should_record_behavior
 118     beh = nil
 119     @watch.behavior(:fake_behavior) { |b| beh = b }
 120     assert_equal 1, @watch.behaviors.size
 121     assert_equal beh, @watch.behaviors.first
 122   end
 123 end