once-campfire/test/channels/presence_channel_test.rb

require "test_helper"

class PresenceChannelTest < ActionCable::Channel::TestCase
  setup do
    stub_connection(current_user: users(:david))
  end

  test "subscribes" do
    room = users(:david).rooms.first

    subscribe room_id: room.id

    assert subscription.confirmed?
    assert_has_stream_for room
  end

  test "rejects subscription to a room that the user is not a member of" do
    subscribe room_id: Rooms::Closed.create!(name: "New Room", creator: users(:david)).id

    assert subscription.rejected?
  end

  test "rejects subscription to non-existent room" do
    subscribe room_id: -1

    assert subscription.rejected?
  end

  test "rejects subscription without a room" do
    subscribe room_id: -1

    assert subscription.rejected?
  end

  test "subscribing marks the membership as connected" do
    membership = users(:david).memberships.first

    assert_changes -> { membership.reload.connected? }, from: false, to: true do
      subscribe room_id: membership.room_id
    end
  end

  test "subscribing tells the user's other tabs when they read the room" do
    membership = users(:david).memberships.first

    freeze_time do
      assert_broadcast_on "user_#{users(:david).id}_reads", { room_id: membership.room_id, at: Time.current.to_f } do
        subscribe room_id: membership.room_id
      end
    end
  end

  test "unsubscribing marks the membership as disconnected" do
    membership = users(:david).memberships.first
    subscribe room_id: membership.room_id

    assert_changes -> { membership.reload.connected? }, from: true, to: false do
      unsubscribe
    end
  end
end