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# frozen_string_literal: true
require_relative "test_helper"
module Prism
class DispatcherTest < TestCase
class TestListener
attr_reader :events_received
def initialize
@events_received = []
end
def on_call_node_enter(node)
events_received << :on_call_node_enter
end
def on_call_node_leave(node)
events_received << :on_call_node_leave
end
def on_integer_node_enter(node)
events_received << :on_integer_node_enter
end
end
def test_dispatching_events
listener = TestListener.new
dispatcher = Dispatcher.new
dispatcher.register(listener, :on_call_node_enter, :on_call_node_leave, :on_integer_node_enter)
root = Prism.parse(<<~RUBY).value
def foo
something(1, 2, 3)
end
RUBY
dispatcher.dispatch(root)
assert_equal([:on_call_node_enter, :on_integer_node_enter, :on_integer_node_enter, :on_integer_node_enter, :on_call_node_leave], listener.events_received)
listener.events_received.clear
dispatcher.dispatch_once(root.statements.body.first.body.body.first)
assert_equal([:on_call_node_enter, :on_call_node_leave], listener.events_received)
end
end
end
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