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   # new
   9
  10   def test_new_should_have_no_behaviors
  11     assert_equal [], @watch.behaviors
  12   end
  13
  14   def test_new_should_have_no_metrics
  15     Watch::VALID_STATES.each do |state|
  16       assert_equal [], @watch.metrics[state]
  17     end
  18   end
  19
  20   def test_new_should_have_standard_attributes
  21     assert_nothing_raised do
  22       @watch.name = 'foo'
  23       @watch.start = 'start'
  24       @watch.stop = 'stop'
  25       @watch.restart = 'restart'
  26       @watch.interval = 30
  27       @watch.grace = 5
  28     end
  29   end
  30
  31   def test_new_should_have_nil_state
  32     assert_equal nil, @watch.state
  33   end
  34
  35   # mutex
  36
  37   def test_mutex_should_return_the_same_mutex_each_time
  38     assert_equal @watch.mutex, @watch.mutex
  39   end
  40
  41   # behavior
  42
  43   def test_behavior_should_record_behavior
  44     beh = nil
  45     @watch.behavior(:fake_behavior) { |b| beh = b }
  46     assert_equal 1, @watch.behaviors.size
  47     assert_equal beh, @watch.behaviors.first
  48   end
  49
  50   # transition
  51
  52   def test_transition_should_abort_on_invalid_start_state
  53     assert_raise AbortCalledError do
  54       @watch.transition(:foo, :bar)
  55     end
  56   end
  57
  58   def test_transition_should_accept_all_valid_start_states
  59     assert_nothing_raised do
  60       Watch::VALID_STATES.each do |state|
  61         @watch.transition(state, :bar) { }
  62       end
  63     end
  64   end
  65
  66   def test_transition_should_create_and_record_a_metric_for_the_given_start_state
  67     @watch.transition(:init, :start) { }
  68     assert_equal 1, @watch.metrics[:init].size
  69   end
  70
  71   # start_if
  72
  73   def test_start_if_should_place_a_metric_on_up_state
  74     @watch.start_if { }
  75     assert_equal 1, @watch.metrics[:up].size
  76   end
  77
  78   # restart_if
  79
  80   def test_restart_if_should_place_a_metric_on_up_state
  81     @watch.restart_if { }
  82     assert_equal 1, @watch.metrics[:up].size
  83   end
  84
  85   # canonical_hash_form
  86
  87   def test_canonical_hash_form_should_convert_symbol_to_hash
  88     assert_equal({true => :foo}, @watch.canonical_hash_form(:foo))
  89   end
  90
  91   def test_canonical_hash_form_should_convert_hash_to_hash
  92     assert_equal({true => :foo}, @watch.canonical_hash_form(true => :foo))
  93   end
  94 end