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# frozen_string_literal: true
require "abstract_unit"
require "active_support/notifications/instrumenter"
module ActiveSupport
module Notifications
class InstrumenterTest < ActiveSupport::TestCase
class TestNotifier
attr_reader :starts, :finishes
def initialize
@starts = []
@finishes = []
end
def start(*args); @starts << args; end
def finish(*args); @finishes << args; end
end
attr_reader :instrumenter, :notifier, :payload
def setup
super
@notifier = TestNotifier.new
@instrumenter = Instrumenter.new @notifier
@payload = { foo: Object.new }
end
def test_instrument
called = false
instrumenter.instrument("foo", payload) {
called = true
}
assert called
end
def test_instrument_yields_the_payload_for_further_modification
assert_equal 2, instrumenter.instrument("awesome") { |p| p[:result] = 1 + 1 }
assert_equal 1, notifier.finishes.size
name, _, payload = notifier.finishes.first
assert_equal "awesome", name
assert_equal Hash[result: 2], payload
end
def test_start
instrumenter.start("foo", payload)
assert_equal [["foo", instrumenter.id, payload]], notifier.starts
assert_predicate notifier.finishes, :empty?
end
def test_finish
instrumenter.finish("foo", payload)
assert_equal [["foo", instrumenter.id, payload]], notifier.finishes
assert_predicate notifier.starts, :empty?
end
end
end
end
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