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rails--rails/actioncable/test/channel/test_case_test.rb
Vladimir Dementyev 8541394e71 Add ActionCable::Channel::TestCase
ActionCable::Channel::TestCase provides an ability
to unit-test channel classes.

There are several reasons to write unit/functional cable tests:
- Access control (who has access to the channel? who can perform action and with which argument?
- Frontend-less applications have no system tests at all–and we still need a way to test channels logic.

See also #27191
2018-09-26 22:06:14 -07:00

188 lines
4 KiB
Ruby

# frozen_string_literal: true
require "test_helper"
class TestTestChannel < ActionCable::Channel::Base
end
class NonInferrableExplicitClassChannelTest < ActionCable::Channel::TestCase
tests TestTestChannel
def test_set_channel_class_manual
assert_equal TestTestChannel, self.class.channel_class
end
end
class NonInferrableSymbolNameChannelTest < ActionCable::Channel::TestCase
tests :test_test_channel
def test_set_channel_class_manual_using_symbol
assert_equal TestTestChannel, self.class.channel_class
end
end
class NonInferrableStringNameChannelTest < ActionCable::Channel::TestCase
tests "test_test_channel"
def test_set_channel_class_manual_using_string
assert_equal TestTestChannel, self.class.channel_class
end
end
class SubscriptionsTestChannel < ActionCable::Channel::Base
end
class SubscriptionsTestChannelTest < ActionCable::Channel::TestCase
def setup
stub_connection
end
def test_no_subscribe
assert_nil subscription
end
def test_subscribe
subscribe
assert subscription.confirmed?
assert_not subscription.rejected?
assert_equal 1, connection.transmissions.size
assert_equal ActionCable::INTERNAL[:message_types][:confirmation],
connection.transmissions.last["type"]
end
end
class StubConnectionTest < ActionCable::Channel::TestCase
tests SubscriptionsTestChannel
def test_connection_identifiers
stub_connection username: "John", admin: true
subscribe
assert_equal "John", subscription.username
assert subscription.admin
end
end
class RejectionTestChannel < ActionCable::Channel::Base
def subscribed
reject
end
end
class RejectionTestChannelTest < ActionCable::Channel::TestCase
def test_rejection
subscribe
assert_not subscription.confirmed?
assert subscription.rejected?
assert_equal 1, connection.transmissions.size
assert_equal ActionCable::INTERNAL[:message_types][:rejection],
connection.transmissions.last["type"]
end
end
class StreamsTestChannel < ActionCable::Channel::Base
def subscribed
stream_from "test_#{params[:id] || 0}"
end
end
class StreamsTestChannelTest < ActionCable::Channel::TestCase
def test_stream_without_params
subscribe
assert_equal "test_0", streams.last
end
def test_stream_with_params
subscribe id: 42
assert_equal "test_42", streams.last
end
end
class PerformTestChannel < ActionCable::Channel::Base
def echo(data)
data.delete("action")
transmit data
end
def ping
transmit type: "pong"
end
end
class PerformTestChannelTest < ActionCable::Channel::TestCase
def setup
stub_connection user_id: 2016
subscribe id: 5
end
def test_perform_with_params
perform :echo, text: "You are man!"
assert_equal({ "text" => "You are man!" }, transmissions.last)
end
def test_perform_and_transmit
perform :ping
assert_equal "pong", transmissions.last["type"]
end
end
class PerformUnsubscribedTestChannelTest < ActionCable::Channel::TestCase
tests PerformTestChannel
def test_perform_when_unsubscribed
assert_raises do
perform :echo
end
end
end
class BroadcastsTestChannel < ActionCable::Channel::Base
def broadcast(data)
ActionCable.server.broadcast(
"broadcast_#{params[:id]}",
text: data["message"], user_id: user_id
)
end
def broadcast_to_user(data)
user = User.new user_id
self.class.broadcast_to user, text: data["message"]
end
end
class BroadcastsTestChannelTest < ActionCable::Channel::TestCase
def setup
stub_connection user_id: 2017
subscribe id: 5
end
def test_broadcast_matchers_included
assert_broadcast_on("broadcast_5", user_id: 2017, text: "SOS") do
perform :broadcast, message: "SOS"
end
end
def test_broadcast_to_object
user = User.new(2017)
assert_broadcasts(user, 1) do
perform :broadcast_to_user, text: "SOS"
end
end
def test_broadcast_to_object_with_data
user = User.new(2017)
assert_broadcast_on(user, text: "SOS") do
perform :broadcast_to_user, message: "SOS"
end
end
end