如何测试 ActionCable 连接？

Question

如何在 RSpec 中为 ActionCable Connection 编写测试？我发现 documentation and 关于测试 Channels，但我很难找到关于测试 Connections 的信息。

Answer 1

action-cable-testing gem includes support for testing Connections. Here's the documentation: https://github.com/palkan/action-cable-testing#rspec-usage

这里是文档中给出的 RSpec 示例：

require "rails_helper"

RSpec.describe ApplicationCable::Connection, type: :channel do
  it "successfully connects" do
    connect "/cable", headers: { "X-USER-ID" => "325" }
    expect(connection.user_id).to eq "325"
  end

  it "rejects connection" do
    expect { connect "/cable" }.to have_rejected_connection
  end
end