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require 'abstract_unit'
# Allow LittleFanout to be cleaned.
class ActiveSupport::Notifications::LittleFanout
def clear
@listeners.clear
end
end
class NotificationsEventTest < Test::Unit::TestCase
def test_events_are_initialized_with_details
event = event(:foo, Time.now, Time.now + 1, 1, random_id, :payload => :bar)
assert_equal :foo, event.name
assert_equal Hash[:payload => :bar], event.payload
end
def test_events_consumes_information_given_as_payload
time = Time.now
event = event(:foo, time, time + 0.01, 1, random_id, {})
assert_equal Hash.new, event.payload
assert_equal time, event.time
assert_equal 1, event.result
assert_equal 10.0, event.duration
end
def test_event_is_parent_based_on_time_frame
time = Time.utc(2009, 01, 01, 0, 0, 1)
parent = event(:foo, Time.utc(2009), Time.utc(2009) + 100, nil, random_id, {})
child = event(:foo, time, time + 10, nil, random_id, {})
not_child = event(:foo, time, time + 100, nil, random_id, {})
assert parent.parent_of?(child)
assert !child.parent_of?(parent)
assert !parent.parent_of?(not_child)
assert !not_child.parent_of?(parent)
end
protected
def random_id
@random_id ||= ActiveSupport::SecureRandom.hex(10)
end
def event(*args)
ActiveSupport::Notifications::Event.new(*args)
end
end
class NotificationsMainTest < Test::Unit::TestCase
def setup
@events = []
Thread.abort_on_exception = true
ActiveSupport::Notifications.subscribe do |*args|
@events << ActiveSupport::Notifications::Event.new(*args)
end
end
def teardown
Thread.abort_on_exception = false
ActiveSupport::Notifications.queue.clear
end
def test_notifications_returns_action_result
result = ActiveSupport::Notifications.instrument(:awesome, :payload => "notifications") do
1 + 1
end
assert_equal 2, result
end
def test_events_are_published_to_a_listener
ActiveSupport::Notifications.instrument(:awesome, :payload => "notifications") do
1 + 1
end
drain
assert_equal 1, @events.size
assert_equal :awesome, @events.last.name
assert_equal Hash[:payload => "notifications"], @events.last.payload
end
def test_nested_events_can_be_instrumented
ActiveSupport::Notifications.instrument(:awesome, :payload => "notifications") do
ActiveSupport::Notifications.instrument(:wot, :payload => "child") do
1 + 1
end
drain
assert_equal 1, @events.size
assert_equal :wot, @events.first.name
assert_equal Hash[:payload => "child"], @events.first.payload
end
drain
assert_equal 2, @events.size
assert_equal :awesome, @events.last.name
assert_equal Hash[:payload => "notifications"], @events.last.payload
end
def test_event_is_pushed_even_if_block_fails
ActiveSupport::Notifications.instrument(:awesome, :payload => "notifications") do
raise "OMG"
end rescue RuntimeError
drain
assert_equal 1, @events.size
assert_equal :awesome, @events.last.name
assert_equal Hash[:payload => "notifications"], @events.last.payload
end
def test_event_is_pushed_even_without_block
ActiveSupport::Notifications.instrument(:awesome, :payload => "notifications")
drain
assert_equal 1, @events.size
assert_equal :awesome, @events.last.name
assert_equal Hash[:payload => "notifications"], @events.last.payload
end
def test_subscribed_in_a_transaction
@another = []
ActiveSupport::Notifications.subscribe("cache") do |*args|
@another << ActiveSupport::Notifications::Event.new(*args)
end
ActiveSupport::Notifications.instrument(:cache){ 1 }
ActiveSupport::Notifications.transaction do
ActiveSupport::Notifications.instrument(:cache){ 1 }
end
ActiveSupport::Notifications.instrument(:cache){ 1 }
drain
assert_equal 3, @another.size
before, during, after = @another.map {|e| e.transaction_id }
assert_equal before, after
assert_not_equal before, during
end
def test_subscriber_with_pattern
@another = []
ActiveSupport::Notifications.subscribe("cache") do |*args|
@another << ActiveSupport::Notifications::Event.new(*args)
end
ActiveSupport::Notifications.instrument(:cache){ 1 }
drain
assert_equal 1, @another.size
assert_equal :cache, @another.first.name
assert_equal 1, @another.first.result
end
def test_subscriber_with_pattern_as_regexp
@another = []
ActiveSupport::Notifications.subscribe(/cache/) do |*args|
@another << ActiveSupport::Notifications::Event.new(*args)
end
ActiveSupport::Notifications.instrument(:something){ 0 }
ActiveSupport::Notifications.instrument(:cache){ 1 }
drain
assert_equal 1, @another.size
assert_equal :cache, @another.first.name
assert_equal 1, @another.first.result
end
def test_subscriber_allows_sync_listeners
@another = []
ActiveSupport::Notifications.subscribe(/cache/, :with => ActiveSupport::Notifications::SyncListener) do |*args|
@another << ActiveSupport::Notifications::Event.new(*args)
end
Thread.expects(:new).never
ActiveSupport::Notifications.instrument(:something){ 0 }
ActiveSupport::Notifications.instrument(:cache){ 1 }
assert_equal 1, @another.size
assert_equal :cache, @another.first.name
assert_equal 1, @another.first.result
end
def test_with_several_consumers_and_several_events
@another = []
ActiveSupport::Notifications.subscribe do |*args|
@another << ActiveSupport::Notifications::Event.new(*args)
end
1.upto(100) do |i|
ActiveSupport::Notifications.instrument(:value){ i }
end
drain
assert_equal 100, @events.size
assert_equal :value, @events.first.name
assert_equal 1, @events.first.result
assert_equal 100, @events.last.result
assert_equal 100, @another.size
assert_equal :value, @another.first.name
assert_equal 1, @another.first.result
assert_equal 100, @another.last.result
end
private
def drain
sleep(0.05) until ActiveSupport::Notifications.queue.drained?
end
end
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