所需文件
- active_support
- active_support/test_case
- active_support/core_ext/hash/indifferent_access
- json
命名空间
- 模块 ActionCable
- 模块 ActionCable::Channel
- 模块 ActionCable::Channel::ChannelStub
- 模块 ActionCable::Channel::TestCase::Behavior
- 模块 ActionCable::Channel::TestCase::Behavior::ClassMethods
- 模块 ActiveSupport
- 类 ActionCable::Channel::ConnectionStub
- 类 ActionCable::Channel::NonInferrableChannelError
- 类 ActionCable::Channel::TestCase