1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
require 'abstract_unit'
require 'rails/subscriber'
Thread.abort_on_exception = true
class MockLogger
def initialize
@logged = Hash.new { |h,k| h[k] = [] }
end
def method_missing(level, message)
@logged[level] << message
end
def logged(level)
@logged[level].compact.map { |l| l.to_s.strip }
end
end
ActiveSupport::Notifications.subscribe do |*args|
Rails::Subscriber.dispatch(args)
end
class MySubscriber < Rails::Subscriber
def some_event(event)
info event.name
end
def foo(event)
debug "debug"
info "info"
warn "warn"
end
def bar(event)
info "#{color("cool", :red)}, #{color("isn't it?", :blue, true)}"
end
end
class SubscriberTest < ActiveSupport::TestCase
def setup
@logger = MockLogger.new
@previous_logger, Rails.logger = Rails.logger, @logger
@subscriber = MySubscriber.new
wait
end
def teardown
Rails.logger = @previous_logger
Rails::Subscriber.subscribers.clear
end
def instrument(*args, &block)
ActiveSupport::Notifications.instrument(*args, &block)
end
def wait
ActiveSupport::Notifications.notifier.wait
end
def test_proxies_method_to_rails_logger
@subscriber.foo(nil)
assert_equal %w(debug), @logger.logged(:debug)
assert_equal %w(info), @logger.logged(:info)
assert_equal %w(warn), @logger.logged(:warn)
end
def test_set_color_for_messages
@subscriber.bar(nil)
assert_equal "\e[31mcool\e[0m, \e[1m\e[34misn't it?\e[0m", @logger.logged(:info).last
end
def test_does_not_set_color_if_colorize_logging_is_set_to_false
Rails::Subscriber.colorize_logging = false
@subscriber.bar(nil)
assert_equal "cool, isn't it?", @logger.logged(:info).last
ensure
Rails::Subscriber.colorize_logging = true
end
def test_event_is_sent_to_the_registered_class
Rails::Subscriber.add :my_subscriber, @subscriber
instrument "my_subscriber.some_event"
wait
assert_equal %w(my_subscriber.some_event), @logger.logged(:info)
end
def test_does_not_send_the_event_if_it_doesnt_match_the_class
Rails::Subscriber.add :my_subscriber, @subscriber
instrument "my_subscriber.unknown_event"
wait
# If we get here, it means that NoMethodError was raised.
end
def test_does_not_send_the_event_if_logger_is_nil
Rails.logger = nil
Rails::Subscriber.add :my_subscriber, @subscriber
instrument "my_subscriber.some_event"
wait
assert_equal [], @logger.logged(:info)
end
end
|
