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require 'abstract_unit'
class FileWatcherTest < ActiveSupport::TestCase
class DumbBackend < ActiveSupport::FileWatcher::Backend
end
def setup
@watcher = ActiveSupport::FileWatcher.new
# In real life, the backend would take the path and use it to observe the file
# system. In our case, we will manually trigger the events for unit testing,
# so we can pass any path.
@backend = DumbBackend.new("RAILS_WOOT", @watcher)
@payload = []
@watcher.watch %r{^app/assets/.*\.scss$} do |pay|
pay.each do |status, files|
files.sort!
end
@payload << pay
end
end
def test_use_triple_equals
fw = ActiveSupport::FileWatcher.new
called = []
fw.watch("some_arbitrary_file.rb") do |file|
called << "omg"
end
fw.trigger(%w{ some_arbitrary_file.rb })
assert_equal ['omg'], called
end
def test_one_change
@backend.trigger("app/assets/main.scss" => :changed)
assert_equal({:changed => ["app/assets/main.scss"]}, @payload.first)
end
def test_multiple_changes
@backend.trigger("app/assets/main.scss" => :changed, "app/assets/javascripts/foo.coffee" => :changed)
assert_equal([{:changed => ["app/assets/main.scss"]}], @payload)
end
def test_multiple_changes_match
@backend.trigger("app/assets/main.scss" => :changed, "app/assets/print.scss" => :changed, "app/assets/javascripts/foo.coffee" => :changed)
assert_equal([{:changed => ["app/assets/main.scss", "app/assets/print.scss"]}], @payload)
end
def test_multiple_state_changes
@backend.trigger("app/assets/main.scss" => :created, "app/assets/print.scss" => :changed)
assert_equal([{:changed => ["app/assets/print.scss"], :created => ["app/assets/main.scss"]}], @payload)
end
def test_more_blocks
payload = []
@watcher.watch %r{^config/routes\.rb$} do |pay|
payload << pay
end
@backend.trigger "config/routes.rb" => :changed
assert_equal [:changed => ["config/routes.rb"]], payload
assert_equal [], @payload
end
def test_overlapping_watchers
payload = []
@watcher.watch %r{^app/assets/main\.scss$} do |pay|
payload << pay
end
@backend.trigger "app/assets/print.scss" => :changed, "app/assets/main.scss" => :changed
assert_equal [:changed => ["app/assets/main.scss"]], payload
assert_equal [:changed => ["app/assets/main.scss", "app/assets/print.scss"]], @payload
end
end
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